Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

pragma solidity 0.6.6;

import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {AccessControlMixin} from "../../common/AccessControlMixin.sol";
import {IChildToken} from "./IChildToken.sol";
import {NativeMetaTransaction} from "../../common/NativeMetaTransaction.sol";
import {ContextMixin} from "../../common/ContextMixin.sol";


contract USDD_t is
    ERC20,
    IChildToken,
    AccessControlMixin,
    NativeMetaTransaction,
    ContextMixin
{
    bytes32 public constant DEPOSITOR_ROLE = keccak256("DEPOSITOR_ROLE");

    constructor(
        string memory name_,
        string memory symbol_,
        uint8 decimals_,
        address childChainManager
    ) public ERC20(name_, symbol_) {
        _setupContractId("USDD_t");
        _setupDecimals(decimals_);
        _setupRole(DEPOSITOR_ROLE, childChainManager);
        _initializeEIP712(name_);
    }

    // This is to support Native meta transactions
    // never use msg.sender directly, use _msgSender() instead
    function _msgSender()
        internal
        override
        view
        returns (address payable sender)
    {
        return ContextMixin.msgSender();
    }

    /**
     * @notice called when token is deposited on root chain
     * @dev Should be callable only by ChildChainManager
     * Should handle deposit by minting the required amount for user
     * Make sure minting is done only by this function
     * @param user user address for whom deposit is being done
     * @param depositData abi encoded amount
     */
    function deposit(address user, bytes calldata depositData)
        external
        override
        only(DEPOSITOR_ROLE)
    {
        uint256 amount = abi.decode(depositData, (uint256));
        _mint(user, amount);
    }

    /**
     * @notice called when user wants to withdraw tokens back to root chain
     * @dev Should burn user's tokens. This transaction will be verified when exiting on root chain
     * @param amount amount of tokens to withdraw
     */
    function withdrawTo(address to, uint256 amount) public {
        _burn(_msgSender(), amount);
        emit WithdrawTo(to, address(0x00), amount);
    }

    function withdraw(uint256 amount) external {
        withdrawTo(_msgSender(), amount);
    }
}

pragma solidity 0.6.6;

import {Initializable} from "./Initializable.sol";

contract EIP712Base is Initializable {
    struct EIP712Domain {
        string name;
        string version;
        address verifyingContract;
        bytes32 salt;
    }

    string constant public ERC712_VERSION = "1";

    bytes32 internal constant EIP712_DOMAIN_TYPEHASH = keccak256(
        bytes(
            "EIP712Domain(string name,string version,address verifyingContract,bytes32 salt)"
        )
    );
    bytes32 internal domainSeperator;

    // supposed to be called once while initializing.
    // one of the contractsa that inherits this contract follows proxy pattern
    // so it is not possible to do this in a constructor
    function _initializeEIP712(
        string memory name
    )
        internal
        initializer
    {
        _setDomainSeperator(name);
    }

    function _setDomainSeperator(string memory name) internal {
        domainSeperator = keccak256(
            abi.encode(
                EIP712_DOMAIN_TYPEHASH,
                keccak256(bytes(name)),
                keccak256(bytes(ERC712_VERSION)),
                address(this),
                bytes32(getChainId())
            )
        );
    }

    function getDomainSeperator() public view returns (bytes32) {
        return domainSeperator;
    }

    function getChainId() public pure returns (uint256) {
        uint256 id;
        assembly {
            id := chainid()
        }
        return id;
    }

    /**
     * Accept message hash and returns hash message in EIP712 compatible form
     * So that it can be used to recover signer from signature signed using EIP712 formatted data
     * https://eips.ethereum.org/EIPS/eip-712
     * "\\x19" makes the encoding deterministic
     * "\\x01" is the version byte to make it compatible to EIP-191
     */
    function toTypedMessageHash(bytes32 messageHash)
        internal
        view
        returns (bytes32)
    {
        return
            keccak256(
                abi.encodePacked("\x19\x01", getDomainSeperator(), messageHash)
            );
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../../utils/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name_, string memory symbol_) public {
        _name = name_;
        _symbol = symbol_;
        _decimals = 18;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return _decimals;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

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

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

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

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

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

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        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);
    }

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal virtual {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}

pragma solidity 0.6.6;

import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";

contract AccessControlMixin is AccessControl {
    string private _revertMsg;
    function _setupContractId(string memory contractId) internal {
        _revertMsg = string(abi.encodePacked(contractId, ": INSUFFICIENT_PERMISSIONS"));
    }

    modifier only(bytes32 role) {
        require(
            hasRole(role, _msgSender()),
            _revertMsg
        );
        _;
    }
}

pragma solidity 0.6.6;

interface IChildToken {
    event WithdrawTo(address indexed from, address indexed to, uint256 amount);
    function deposit(address user, bytes calldata depositData) external;
}

pragma solidity 0.6.6;

abstract contract ContextMixin {
    function msgSender()
        internal
        view
        returns (address payable sender)
    {
        if (msg.sender == address(this)) {
            bytes memory array = msg.data;
            uint256 index = msg.data.length;
            assembly {
                // Load the 32 bytes word from memory with the address on the lower 20 bytes, and mask those.
                sender := and(
                    mload(add(array, index)),
                    0xffffffffffffffffffffffffffffffffffffffff
                )
            }
        } else {
            sender = msg.sender;
        }
        return sender;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/EnumerableSet.sol";
import "../utils/Address.sol";
import "../utils/Context.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context {
    using EnumerableSet for EnumerableSet.AddressSet;
    using Address for address;

    struct RoleData {
        EnumerableSet.AddressSet members;
        bytes32 adminRole;
    }

    mapping (bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view returns (bool) {
        return _roles[role].members.contains(account);
    }

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view returns (uint256) {
        return _roles[role].members.length();
    }

    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view returns (address) {
        return _roles[role].members.at(index);
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual {
        require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to grant");

        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual {
        require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to revoke");

        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        emit RoleAdminChanged(role, _roles[role].adminRole, adminRole);
        _roles[role].adminRole = adminRole;
    }

    function _grantRole(bytes32 role, address account) private {
        if (_roles[role].members.add(account)) {
            emit RoleGranted(role, account, _msgSender());
        }
    }

    function _revokeRole(bytes32 role, address account) private {
        if (_roles[role].members.remove(account)) {
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;

        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) { // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        require(set._values.length > index, "EnumerableSet: index out of bounds");
        return set._values[index];
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }


    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

   /**
    * @dev Returns the value stored at position `index` in the set. O(1).
    *
    * Note that there are no guarantees on the ordering of values inside the
    * array, and it may change when more values are added or removed.
    *
    * Requirements:
    *
    * - `index` must be strictly less than {length}.
    */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}

pragma solidity 0.6.6;

import {SafeMath} from "@openzeppelin/contracts/math/SafeMath.sol";
import {EIP712Base} from "./EIP712Base.sol";

contract NativeMetaTransaction is EIP712Base {
    using SafeMath for uint256;
    bytes32 private constant META_TRANSACTION_TYPEHASH = keccak256(
        bytes(
            "MetaTransaction(uint256 nonce,address from,bytes functionSignature)"
        )
    );
    event MetaTransactionExecuted(
        address userAddress,
        address payable relayerAddress,
        bytes functionSignature
    );
    mapping(address => uint256) nonces;

    /*
     * Meta transaction structure.
     * No point of including value field here as if user is doing value transfer then he has the funds to pay for gas
     * He should call the desired function directly in that case.
     */
    struct MetaTransaction {
        uint256 nonce;
        address from;
        bytes functionSignature;
    }

    function executeMetaTransaction(
        address userAddress,
        bytes memory functionSignature,
        bytes32 sigR,
        bytes32 sigS,
        uint8 sigV
    ) public payable returns (bytes memory) {
        MetaTransaction memory metaTx = MetaTransaction({
            nonce: nonces[userAddress],
            from: userAddress,
            functionSignature: functionSignature
        });

        require(
            verify(userAddress, metaTx, sigR, sigS, sigV),
            "Signer and signature do not match"
        );

        // increase nonce for user (to avoid re-use)
        nonces[userAddress] = nonces[userAddress].add(1);

        emit MetaTransactionExecuted(
            userAddress,
            msg.sender,
            functionSignature
        );

        // Append userAddress and relayer address at the end to extract it from calling context
        (bool success, bytes memory returnData) = address(this).call(
            abi.encodePacked(functionSignature, userAddress)
        );
        require(success, "Function call not successful");

        return returnData;
    }

    function hashMetaTransaction(MetaTransaction memory metaTx)
        internal
        pure
        returns (bytes32)
    {
        return
            keccak256(
                abi.encode(
                    META_TRANSACTION_TYPEHASH,
                    metaTx.nonce,
                    metaTx.from,
                    keccak256(metaTx.functionSignature)
                )
            );
    }

    function getNonce(address user) public view returns (uint256 nonce) {
        nonce = nonces[user];
    }

    function verify(
        address signer,
        MetaTransaction memory metaTx,
        bytes32 sigR,
        bytes32 sigS,
        uint8 sigV
    ) internal view returns (bool) {
        require(signer != address(0), "NativeMetaTransaction: INVALID_SIGNER");
        return
            signer ==
            ecrecover(
                toTypedMessageHash(hashMetaTransaction(metaTx)),
                sigV,
                sigR,
                sigS
            );
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

pragma solidity 0.6.6;

contract Initializable {
    bool inited = false;

    modifier initializer() {
        require(!inited, "already inited");
        _;
        inited = true;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    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;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

{
  "optimizer": {
    "runs": 200,
    "enabled": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"},{"internalType":"uint8","name":"decimals_","type":"uint8"},{"internalType":"address","name":"childChainManager","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"userAddress","type":"address"},{"indexed":false,"internalType":"address payable","name":"relayerAddress","type":"address"},{"indexed":false,"internalType":"bytes","name":"functionSignature","type":"bytes"}],"name":"MetaTransactionExecuted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawTo","type":"event"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEPOSITOR_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ERC712_VERSION","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"bytes","name":"depositData","type":"bytes"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"userAddress","type":"address"},{"internalType":"bytes","name":"functionSignature","type":"bytes"},{"internalType":"bytes32","name":"sigR","type":"bytes32"},{"internalType":"bytes32","name":"sigS","type":"bytes32"},{"internalType":"uint8","name":"sigV","type":"uint8"}],"name":"executeMetaTransaction","outputs":[{"internalType":"bytes","name":"","type":"bytes"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"getChainId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"getDomainSeperator","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getNonce","outputs":[{"internalType":"uint256","name":"nonce","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"getRoleMember","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleMemberCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawTo","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

-----Decoded View---------------
Arg [0] : name_ (string): "Decentralized USD_TRON"
Arg [1] : symbol_ (string): "USDD_t"
Arg [2] : decimals_ (uint8): 24
Arg [3] : childChainManager (address): 0x9a15F3a682d086C515be4037BDA3B0676203A8ef

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000018
Arg [3] : 0000000000000000000000009a15f3a682d086c515be4037bda3b0676203a8ef
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000018
Arg [5] : 22446563656e7472616c697a6564205553445f54524f4e220000000000000000
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000008
Arg [7] : 22555344445f7422000000000000000000000000000000000000000000000000