Contract 0xed0889F7E1c7C7267407222Be277e1f1Ef4d4892 3

 

Contract Overview

Melalie: MEL Token
Balance:
0 Ether

EtherValue:
$0.00

Token:
Txn Hash
Method
Block
From
To
Value
0xb79e269c5a7eab5dd8d366b20d9316ff5b808e3f8dd0e114680c351ba63ff629Approve153141762022-08-10 11:52:3212 hrs 32 mins ago0x4926d81ce184c93305d74be941615d36750a1185 IN  Melalie: MEL Token0 Ether0.00024124 9.93186126
0x459cfbeb96942b8e85baf932b6011dbd06d69e5f85007c67ac245a5136a35c75Approve153141762022-08-10 11:52:3212 hrs 32 mins ago0x4926d81ce184c93305d74be941615d36750a1185 IN  Melalie: MEL Token0 Ether0.00024124 9.93186126
0x57e07553fb65761f6c0a9bfa79f58e0b41e394acff677a09fd9c1a51848636cbApprove153081782022-08-09 13:10:091 day 11 hrs ago0x45463020eeb67dbc101fa65a7f9f4b219a0137f2 IN  Melalie: MEL Token0 Ether0.00056303 12.088945
0x114eff323140f2ed6c723a201e73c8807f5c5ecc95a4212f01e3d0e0583e0065Approve152980892022-08-07 23:16:303 days 1 hr ago0x45463020eeb67dbc101fa65a7f9f4b219a0137f2 IN  Melalie: MEL Token0 Ether0.00053738 11.53839188
0xf79020f0f1f77855a0a35cb5fa89c109b50313f489315638161f562d8b38ea53Approve152952462022-08-07 12:45:483 days 11 hrs ago0x5e828e8200deb1410ff4c55a2cc30eab878b9110 IN  Melalie: MEL Token0 Ether0.00026312 5.64968121
0x3b4c06732a12851044efb141af3190be1553e53b8358b93410b9ada92a419a56Transfer152939592022-08-07 8:00:503 days 16 hrs ago0x7756b6b1875e7ba729f01e0daeb8448ec02fd1fc IN  Melalie: MEL Token0 Ether0.00025092 5.33841056
0x4c68f42f62a89c0fbd31d7b1b4840bbe85c0ca1c129debfef26ebdcf7725c0a2Approve152790422022-08-05 0:21:046 days 4 mins ago0x2112dbf416da8b20e595ef7f9e6a7b1d4dbd9378 IN  Melalie: MEL Token0 Ether0.00012471 5.13458122
0x74a44e3a8c7370965bf8a0c9ead0fdb0f1787af06fbb4d89c852f3c1ee3a3249Transfer152288692022-07-28 4:36:0713 days 19 hrs agoBibox IN  Melalie: MEL Token0 Ether0.0015548430
0xe817d64e7f75a89ca32b5754d8d0e2700e9860ca02387e3cffff3502226f26b2Approve152127512022-07-25 16:24:5716 days 8 hrs ago0xc633bb19540baf265ebcc8f5157dc57f14f0406a IN  Melalie: MEL Token0 Ether0.00173022 37.15004858
0x3f2b42f03f57f732542a2fc63cc67de1f73dafb644d17cd0ed8c18d6a628da9fApprove152109832022-07-25 9:50:1816 days 14 hrs agoENS Name abhithad.eth IN  Melalie: MEL Token0 Ether0.0002727 5.8917203
0x845aa17af57c283e4073dd7d3e7d070144733d83556d63a9b65762928e082da2Approve152045262022-07-24 9:32:5117 days 14 hrs ago0x6d1201947680d780d1bd9e7a322d7a0a7f6d83b7 IN  Melalie: MEL Token0 Ether0.00030178 6.47965447
0x3527845b177f81b2c689392d09cd6ca0144fdfecfed79045a7a0ac61bf6237d8Transfer152020732022-07-24 0:11:4118 days 13 mins ago0x762244021d5ec2849e2fe1323dadebfe2b5f306b IN  Melalie: MEL Token0 Ether0.000179646
0xcd4e8503fb400eef13ed44673b03a7e6ee9d4f7c5861bc6ee3cee5aea72d104aTransfer151939112022-07-22 17:58:0619 days 6 hrs ago0x762244021d5ec2849e2fe1323dadebfe2b5f306b IN  Melalie: MEL Token0 Ether0.0007032414.95
0x0de0f016ad35915120b2e3334953043af68b3aa3e1e75b8d7ebe23a87122e8a0Approve151919012022-07-22 10:46:0919 days 13 hrs ago0x5550d77803b4aa0582b115a23674a4083d9d714d IN  Melalie: MEL Token0 Ether0.00042911 9.21364463
0x9d392070e549c28827777f2024847e45eb5eff4842ac9b849959fe82cbd42a41Approve151918732022-07-22 10:39:1819 days 13 hrs ago0xfd8ddd9708082fce2b7ea3892c08cd0e5911ed8b IN  Melalie: MEL Token0 Ether0.00052988 11.37730318
0x14019cc6bd7a9d685cd4bd046bedee634592a7d83bd9e98534b533dcb9f691e4Transfer151913912022-07-22 8:54:4819 days 15 hrs ago0x43911f457ff8cd099661fea289086127ec8cc043 IN  Melalie: MEL Token0 Ether0.00022013 7.36146265
0x1045308f7f53463516b7a24b808628730e9a85a2cd542d8de5647b6daef8a43bApprove151689852022-07-18 21:18:5923 days 3 hrs ago0x8594d8e9483473626908648a5539d9d65ca2fe8d IN  Melalie: MEL Token0 Ether0.00096529 20.72615591
0x00666797d852244c8169328b6cc0d2f54bbcc7102fd27ab4cf888f4ababe5a2cTransfer151680562022-07-18 17:42:2523 days 6 hrs ago0x791462ad3441be685debdec70738440b5695b1f5 IN  Melalie: MEL Token0 Ether0.002412551.3254555
0xd395abcc91d1bceb1d97d6cc85d9a58c0c4a34862954f46dc12c4aaf25c7da97Transfer151661172022-07-18 10:41:3223 days 13 hrs agoBibox IN  Melalie: MEL Token0 Ether0.0015544830
0xf99db6a31736c2b9ef631f5e8f887f5d1ee02661c1e9f1c495289aa3202fdf36Transfer151661162022-07-18 10:40:5823 days 13 hrs ago0x068f4c1280487326e5df05d7ec3dd344fbe618b8 IN  Melalie: MEL Token0 Ether0.0006410121.40992826
0xa9d70399d49b0fb9ee819e6e64c5559f25ea543dd1f3cd3c289b3edbe44973b9Approve151590682022-07-17 8:19:3724 days 16 hrs ago0xa6f8f43b44011e5ff0ba15d8a4b678a8a81cce23 IN  Melalie: MEL Token0 Ether0.00019134 7.8775963
0x4af313f7e040a19b2de9774d29f4af438b6b4dfb82c564cbe18cd1c2d7bee820Approve151342012022-07-13 12:14:3628 days 12 hrs ago0x56db2160eafc73050fad08fdb8159c08d11634ea IN  Melalie: MEL Token0 Ether0.00068935 28.38030252
0xc69932e3c2aa26252b448bab58469d5a3722c9fad3e6dc4877e9ec3eb8d071c9Transfer150756032022-07-04 10:56:2937 days 13 hrs agoBibox IN  Melalie: MEL Token0 Ether0.0015548430
0x71f8067f861435c24a556fe582c64a159b90ac748729de89a81d8b0be56b3b68Approve150505802022-06-30 13:31:4341 days 10 hrs ago0xd54e4f8a55247487dd7c8c59f14ee5c0c2889477 IN  Melalie: MEL Token0 Ether0.00256318 55.03459943
0x3156e3eefdfb53a2bf85f17ed267a3229c10aa38411f68f769bbc42100b537b3Transfer150500122022-06-30 10:56:3341 days 13 hrs ago0x762244021d5ec2849e2fe1323dadebfe2b5f306b IN  Melalie: MEL Token0 Ether0.0009296331.05
[ Download CSV Export 

OVERVIEW

Melalie is a peer-to-peer (P2P) mobility marketplace. On the Melalie platform, people can rent vehicles from each other, without the need for intermediaries.

View more zero value Internal Transactions in Advanced View mode
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
PowerfulERC20

Compiler Version
v0.7.6+commit.7338295f

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
File 1 of 22 : Roles.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "@openzeppelin/contracts/access/AccessControl.sol";

contract Roles is AccessControl {

    bytes32 public constant MINTER_ROLE = keccak256("MINTER");

    constructor () {
        _setupRole(DEFAULT_ADMIN_ROLE, _msgSender());
        _setupRole(MINTER_ROLE, _msgSender());
    }

    modifier onlyMinter() {
        require(hasRole(MINTER_ROLE, _msgSender()), "Roles: caller does not have the MINTER role");
        _;
    }
}

File 2 of 22 : ServicePayer.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

interface IPayable {
    function pay(string memory serviceName) external payable;
}

/**
 * @title ServicePayer
 * @dev Implementation of the ServicePayer
 */
abstract contract ServicePayer {

    constructor (address payable receiver, string memory serviceName) payable {
        IPayable(receiver).pay{value: msg.value}(serviceName);
    }
}

File 3 of 22 : PowerfulERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "@openzeppelin/contracts/token/ERC20/ERC20Burnable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20Capped.sol";

import "erc-payable-token/contracts/token/ERC1363/ERC1363.sol";

import "eth-token-recover/contracts/TokenRecover.sol";

import "./behaviours/ERC20Mintable.sol";
import "../../access/Roles.sol";
import "../../service/ServicePayer.sol";

/**
 * @title PowerfulERC20
 * @dev Implementation of the PowerfulERC20
 */
contract PowerfulERC20 is ERC20Capped, ERC20Mintable, ERC20Burnable, ERC1363, TokenRecover, Roles, ServicePayer {

    constructor (
        string memory name,
        string memory symbol,
        uint8 decimals,
        uint256 cap,
        uint256 initialBalance,
        address payable feeReceiver
    )
        ERC1363(name, symbol)
        ERC20Capped(cap)
        ServicePayer(feeReceiver, "PowerfulERC20")
        payable
    {
        _setupDecimals(decimals);
        _mint(_msgSender(), initialBalance);
    }

    /**
     * @dev Function to mint tokens.
     *
     * NOTE: restricting access to addresses with MINTER role. See {ERC20Mintable-mint}.
     *
     * @param account The address that will receive the minted tokens
     * @param amount The amount of tokens to mint
     */
    function _mint(address account, uint256 amount) internal override onlyMinter {
        super._mint(account, amount);
    }

    /**
     * @dev Function to stop minting new tokens.
     *
     * NOTE: restricting access to owner only. See {ERC20Mintable-finishMinting}.
     */
    function _finishMinting() internal override onlyOwner {
        super._finishMinting();
    }

    /**
     * @dev See {ERC20-_beforeTokenTransfer}. See {ERC20Capped-_beforeTokenTransfer}.
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal override(ERC20, ERC20Capped) {
        super._beforeTokenTransfer(from, to, amount);
    }
}

File 4 of 22 : ERC20Mintable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

/**
 * @title ERC20Mintable
 * @dev Implementation of the ERC20Mintable. Extension of {ERC20} that adds a minting behaviour.
 */
abstract contract ERC20Mintable is ERC20 {

    // indicates if minting is finished
    bool private _mintingFinished = false;

    /**
     * @dev Emitted during finish minting
     */
    event MintFinished();

    /**
     * @dev Tokens can be minted only before minting finished.
     */
    modifier canMint() {
        require(!_mintingFinished, "ERC20Mintable: minting is finished");
        _;
    }

    /**
     * @return if minting is finished or not.
     */
    function mintingFinished() public view returns (bool) {
        return _mintingFinished;
    }

    /**
     * @dev Function to mint tokens.
     *
     * WARNING: it allows everyone to mint new tokens. Access controls MUST be defined in derived contracts.
     *
     * @param account The address that will receive the minted tokens
     * @param amount The amount of tokens to mint
     */
    function mint(address account, uint256 amount) public canMint {
        _mint(account, amount);
    }

    /**
     * @dev Function to stop minting new tokens.
     *
     * WARNING: it allows everyone to finish minting. Access controls MUST be defined in derived contracts.
     */
    function finishMinting() public canMint {
        _finishMinting();
    }

    /**
     * @dev Function to stop minting new tokens.
     */
    function _finishMinting() internal virtual {
        _mintingFinished = true;

        emit MintFinished();
    }
}

File 5 of 22 : AccessControl.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

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());
        }
    }
}

File 6 of 22 : Ownable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "../utils/Context.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

File 7 of 22 : ERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts may inherit from this and call {_registerInterface} to declare
 * their support of an interface.
 */
abstract contract ERC165 is IERC165 {
    /*
     * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7
     */
    bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;

    /**
     * @dev Mapping of interface ids to whether or not it's supported.
     */
    mapping(bytes4 => bool) private _supportedInterfaces;

    constructor () {
        // Derived contracts need only register support for their own interfaces,
        // we register support for ERC165 itself here
        _registerInterface(_INTERFACE_ID_ERC165);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     *
     * Time complexity O(1), guaranteed to always use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return _supportedInterfaces[interfaceId];
    }

    /**
     * @dev Registers the contract as an implementer of the interface defined by
     * `interfaceId`. Support of the actual ERC165 interface is automatic and
     * registering its interface id is not required.
     *
     * See {IERC165-supportsInterface}.
     *
     * Requirements:
     *
     * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).
     */
    function _registerInterface(bytes4 interfaceId) internal virtual {
        require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
        _supportedInterfaces[interfaceId] = true;
    }
}

File 8 of 22 : ERC165Checker.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @dev Library used to query support of an interface declared via {IERC165}.
 *
 * Note that these functions return the actual result of the query: they do not
 * `revert` if an interface is not supported. It is up to the caller to decide
 * what to do in these cases.
 */
library ERC165Checker {
    // As per the EIP-165 spec, no interface should ever match 0xffffffff
    bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;

    /*
     * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7
     */
    bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;

    /**
     * @dev Returns true if `account` supports the {IERC165} interface,
     */
    function supportsERC165(address account) internal view returns (bool) {
        // Any contract that implements ERC165 must explicitly indicate support of
        // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
        return _supportsERC165Interface(account, _INTERFACE_ID_ERC165) &&
            !_supportsERC165Interface(account, _INTERFACE_ID_INVALID);
    }

    /**
     * @dev Returns true if `account` supports the interface defined by
     * `interfaceId`. Support for {IERC165} itself is queried automatically.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {
        // query support of both ERC165 as per the spec and support of _interfaceId
        return supportsERC165(account) &&
            _supportsERC165Interface(account, interfaceId);
    }

    /**
     * @dev Returns a boolean array where each value corresponds to the
     * interfaces passed in and whether they're supported or not. This allows
     * you to batch check interfaces for a contract where your expectation
     * is that some interfaces may not be supported.
     *
     * See {IERC165-supportsInterface}.
     *
     * _Available since v3.4._
     */
    function getSupportedInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool[] memory) {
        // an array of booleans corresponding to interfaceIds and whether they're supported or not
        bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);

        // query support of ERC165 itself
        if (supportsERC165(account)) {
            // query support of each interface in interfaceIds
            for (uint256 i = 0; i < interfaceIds.length; i++) {
                interfaceIdsSupported[i] = _supportsERC165Interface(account, interfaceIds[i]);
            }
        }

        return interfaceIdsSupported;
    }

    /**
     * @dev Returns true if `account` supports all the interfaces defined in
     * `interfaceIds`. Support for {IERC165} itself is queried automatically.
     *
     * Batch-querying can lead to gas savings by skipping repeated checks for
     * {IERC165} support.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {
        // query support of ERC165 itself
        if (!supportsERC165(account)) {
            return false;
        }

        // query support of each interface in _interfaceIds
        for (uint256 i = 0; i < interfaceIds.length; i++) {
            if (!_supportsERC165Interface(account, interfaceIds[i])) {
                return false;
            }
        }

        // all interfaces supported
        return true;
    }

    /**
     * @notice Query if a contract implements an interface, does not check ERC165 support
     * @param account The address of the contract to query for support of an interface
     * @param interfaceId The interface identifier, as specified in ERC-165
     * @return true if the contract at account indicates support of the interface with
     * identifier interfaceId, false otherwise
     * @dev Assumes that account contains a contract that supports ERC165, otherwise
     * the behavior of this method is undefined. This precondition can be checked
     * with {supportsERC165}.
     * Interface identification is specified in ERC-165.
     */
    function _supportsERC165Interface(address account, bytes4 interfaceId) private view returns (bool) {
        // success determines whether the staticcall succeeded and result determines
        // whether the contract at account indicates support of _interfaceId
        (bool success, bool result) = _callERC165SupportsInterface(account, interfaceId);

        return (success && result);
    }

    /**
     * @notice Calls the function with selector 0x01ffc9a7 (ERC165) and suppresses throw
     * @param account The address of the contract to query for support of an interface
     * @param interfaceId The interface identifier, as specified in ERC-165
     * @return success true if the STATICCALL succeeded, false otherwise
     * @return result true if the STATICCALL succeeded and the contract at account
     * indicates support of the interface with identifier interfaceId, false otherwise
     */
    function _callERC165SupportsInterface(address account, bytes4 interfaceId)
        private
        view
        returns (bool, bool)
    {
        bytes memory encodedParams = abi.encodeWithSelector(_INTERFACE_ID_ERC165, interfaceId);
        (bool success, bytes memory result) = account.staticcall{ gas: 30000 }(encodedParams);
        if (result.length < 32) return (false, false);
        return (success, abi.decode(result, (bool)));
    }
}

File 9 of 22 : IERC165.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 10 of 22 : SafeMath.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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;
    }
}

File 11 of 22 : ERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

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_) {
        _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 { }
}

File 12 of 22 : ERC20Burnable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "../../utils/Context.sol";
import "./ERC20.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    using SafeMath for uint256;

    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        uint256 decreasedAllowance = allowance(account, _msgSender()).sub(amount, "ERC20: burn amount exceeds allowance");

        _approve(account, _msgSender(), decreasedAllowance);
        _burn(account, amount);
    }
}

File 13 of 22 : ERC20Capped.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "./ERC20.sol";

/**
 * @dev Extension of {ERC20} that adds a cap to the supply of tokens.
 */
abstract contract ERC20Capped is ERC20 {
    using SafeMath for uint256;

    uint256 private _cap;

    /**
     * @dev Sets the value of the `cap`. This value is immutable, it can only be
     * set once during construction.
     */
    constructor (uint256 cap_) {
        require(cap_ > 0, "ERC20Capped: cap is 0");
        _cap = cap_;
    }

    /**
     * @dev Returns the cap on the token's total supply.
     */
    function cap() public view virtual returns (uint256) {
        return _cap;
    }

    /**
     * @dev See {ERC20-_beforeTokenTransfer}.
     *
     * Requirements:
     *
     * - minted tokens must not cause the total supply to go over the cap.
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override {
        super._beforeTokenTransfer(from, to, amount);

        if (from == address(0)) { // When minting tokens
            require(totalSupply().add(amount) <= cap(), "ERC20Capped: cap exceeded");
        }
    }
}

File 14 of 22 : IERC20.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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);
}

File 15 of 22 : Address.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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);
            }
        }
    }
}

File 16 of 22 : Context.sol
// 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;
    }
}

File 17 of 22 : EnumerableSet.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @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));
    }
}

File 18 of 22 : ERC1363.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "./IERC1363.sol";
import "./IERC1363Receiver.sol";
import "./IERC1363Spender.sol";

import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/introspection/ERC165Checker.sol";

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/introspection/ERC165.sol";

/**
 * @title ERC1363
 * @author Vittorio Minacori (https://github.com/vittominacori)
 * @dev Implementation of an ERC1363 interface
 */
contract ERC1363 is ERC20, IERC1363, ERC165 {
    using Address for address;

    /*
     * Note: the ERC-165 identifier for this interface is 0x4bbee2df.
     * 0x4bbee2df ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)'))
     */
    bytes4 internal constant _INTERFACE_ID_ERC1363_TRANSFER = 0x4bbee2df;

    /*
     * Note: the ERC-165 identifier for this interface is 0xfb9ec8ce.
     * 0xfb9ec8ce ===
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */
    bytes4 internal constant _INTERFACE_ID_ERC1363_APPROVE = 0xfb9ec8ce;

    // Equals to `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))`
    // which can be also obtained as `IERC1363Receiver(0).onTransferReceived.selector`
    bytes4 private constant _ERC1363_RECEIVED = 0x88a7ca5c;

    // Equals to `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))`
    // which can be also obtained as `IERC1363Spender(0).onApprovalReceived.selector`
    bytes4 private constant _ERC1363_APPROVED = 0x7b04a2d0;

    /**
     * @param name Name of the token
     * @param symbol A symbol to be used as ticker
     */
    constructor (string memory name, string memory symbol) ERC20(name, symbol) {
        // register the supported interfaces to conform to ERC1363 via ERC165
        _registerInterface(_INTERFACE_ID_ERC1363_TRANSFER);
        _registerInterface(_INTERFACE_ID_ERC1363_APPROVE);
    }

    /**
     * @dev Transfer tokens to a specified address and then execute a callback on recipient.
     * @param recipient The address to transfer to.
     * @param amount The amount to be transferred.
     * @return A boolean that indicates if the operation was successful.
     */
    function transferAndCall(address recipient, uint256 amount) public virtual override returns (bool) {
        return transferAndCall(recipient, amount, "");
    }

    /**
     * @dev Transfer tokens to a specified address and then execute a callback on recipient.
     * @param recipient The address to transfer to
     * @param amount The amount to be transferred
     * @param data Additional data with no specified format
     * @return A boolean that indicates if the operation was successful.
     */
    function transferAndCall(address recipient, uint256 amount, bytes memory data) public virtual override returns (bool) {
        transfer(recipient, amount);
        require(_checkAndCallTransfer(_msgSender(), recipient, amount, data), "ERC1363: _checkAndCallTransfer reverts");
        return true;
    }

    /**
     * @dev Transfer tokens from one address to another and then execute a callback on recipient.
     * @param sender The address which you want to send tokens from
     * @param recipient The address which you want to transfer to
     * @param amount The amount of tokens to be transferred
     * @return A boolean that indicates if the operation was successful.
     */
    function transferFromAndCall(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        return transferFromAndCall(sender, recipient, amount, "");
    }

    /**
     * @dev Transfer tokens from one address to another and then execute a callback on recipient.
     * @param sender The address which you want to send tokens from
     * @param recipient The address which you want to transfer to
     * @param amount The amount of tokens to be transferred
     * @param data Additional data with no specified format
     * @return A boolean that indicates if the operation was successful.
     */
    function transferFromAndCall(address sender, address recipient, uint256 amount, bytes memory data) public virtual override returns (bool) {
        transferFrom(sender, recipient, amount);
        require(_checkAndCallTransfer(sender, recipient, amount, data), "ERC1363: _checkAndCallTransfer reverts");
        return true;
    }

    /**
     * @dev Approve spender to transfer tokens and then execute a callback on recipient.
     * @param spender The address allowed to transfer to
     * @param amount The amount allowed to be transferred
     * @return A boolean that indicates if the operation was successful.
     */
    function approveAndCall(address spender, uint256 amount) public virtual override returns (bool) {
        return approveAndCall(spender, amount, "");
    }

    /**
     * @dev Approve spender to transfer tokens and then execute a callback on recipient.
     * @param spender The address allowed to transfer to.
     * @param amount The amount allowed to be transferred.
     * @param data Additional data with no specified format.
     * @return A boolean that indicates if the operation was successful.
     */
    function approveAndCall(address spender, uint256 amount, bytes memory data) public virtual override returns (bool) {
        approve(spender, amount);
        require(_checkAndCallApprove(spender, amount, data), "ERC1363: _checkAndCallApprove reverts");
        return true;
    }

    /**
     * @dev Internal function to invoke `onTransferReceived` on a target address
     *  The call is not executed if the target address is not a contract
     * @param sender address Representing the previous owner of the given token value
     * @param recipient address Target address that will receive the tokens
     * @param amount uint256 The amount mount of tokens to be transferred
     * @param data bytes Optional data to send along with the call
     * @return whether the call correctly returned the expected magic value
     */
    function _checkAndCallTransfer(address sender, address recipient, uint256 amount, bytes memory data) internal virtual returns (bool) {
        if (!recipient.isContract()) {
            return false;
        }
        bytes4 retval = IERC1363Receiver(recipient).onTransferReceived(
            _msgSender(), sender, amount, data
        );
        return (retval == _ERC1363_RECEIVED);
    }

    /**
     * @dev Internal function to invoke `onApprovalReceived` on a target address
     *  The call is not executed if the target address is not a contract
     * @param spender address The address which will spend the funds
     * @param amount uint256 The amount of tokens to be spent
     * @param data bytes Optional data to send along with the call
     * @return whether the call correctly returned the expected magic value
     */
    function _checkAndCallApprove(address spender, uint256 amount, bytes memory data) internal virtual returns (bool) {
        if (!spender.isContract()) {
            return false;
        }
        bytes4 retval = IERC1363Spender(spender).onApprovalReceived(
            _msgSender(), amount, data
        );
        return (retval == _ERC1363_APPROVED);
    }
}

File 19 of 22 : IERC1363.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/introspection/IERC165.sol";

/**
 * @title IERC1363 Interface
 * @author Vittorio Minacori (https://github.com/vittominacori)
 * @dev Interface for a Payable Token contract as defined in
 *  https://eips.ethereum.org/EIPS/eip-1363
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0x4bbee2df.
     * 0x4bbee2df ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)'))
     */

    /*
     * Note: the ERC-165 identifier for this interface is 0xfb9ec8ce.
     * 0xfb9ec8ce ===
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver
     * @param recipient address The address which you want to transfer to
     * @param amount uint256 The amount of tokens to be transferred
     * @return true unless throwing
     */
    function transferAndCall(address recipient, uint256 amount) external returns (bool);

    /**
     * @notice Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver
     * @param recipient address The address which you want to transfer to
     * @param amount uint256 The amount of tokens to be transferred
     * @param data bytes Additional data with no specified format, sent in call to `recipient`
     * @return true unless throwing
     */
    function transferAndCall(address recipient, uint256 amount, bytes calldata data) external returns (bool);

    /**
     * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver
     * @param sender address The address which you want to send tokens from
     * @param recipient address The address which you want to transfer to
     * @param amount uint256 The amount of tokens to be transferred
     * @return true unless throwing
     */
    function transferFromAndCall(address sender, address recipient, uint256 amount) external returns (bool);

    /**
     * @notice Transfer tokens from one address to another and then call `onTransferReceived` on receiver
     * @param sender address The address which you want to send tokens from
     * @param recipient address The address which you want to transfer to
     * @param amount uint256 The amount of tokens to be transferred
     * @param data bytes Additional data with no specified format, sent in call to `recipient`
     * @return true unless throwing
     */
    function transferFromAndCall(address sender, address recipient, uint256 amount, bytes calldata data) external returns (bool);

    /**
     * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender
     * and then call `onApprovalReceived` on spender.
     * 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
     * @param spender address The address which will spend the funds
     * @param amount uint256 The amount of tokens to be spent
     */
    function approveAndCall(address spender, uint256 amount) external returns (bool);

    /**
     * @notice Approve the passed address to spend the specified amount of tokens on behalf of msg.sender
     * and then call `onApprovalReceived` on spender.
     * 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
     * @param spender address The address which will spend the funds
     * @param amount uint256 The amount of tokens to be spent
     * @param data bytes Additional data with no specified format, sent in call to `spender`
     */
    function approveAndCall(address spender, uint256 amount, bytes calldata data) external returns (bool);
}

File 20 of 22 : IERC1363Receiver.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @title IERC1363Receiver Interface
 * @author Vittorio Minacori (https://github.com/vittominacori)
 * @dev Interface for any contract that wants to support transferAndCall or transferFromAndCall
 *  from ERC1363 token contracts as defined in
 *  https://eips.ethereum.org/EIPS/eip-1363
 */
interface IERC1363Receiver {
    /*
     * Note: the ERC-165 identifier for this interface is 0x88a7ca5c.
     * 0x88a7ca5c === bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))
     */

    /**
     * @notice Handle the receipt of ERC1363 tokens
     * @dev Any ERC1363 smart contract calls this function on the recipient
     * after a `transfer` or a `transferFrom`. This function MAY throw to revert and reject the
     * transfer. Return of other than the magic value MUST result in the
     * transaction being reverted.
     * Note: the token contract address is always the message sender.
     * @param operator address The address which called `transferAndCall` or `transferFromAndCall` function
     * @param sender address The address which are token transferred from
     * @param amount uint256 The amount of tokens transferred
     * @param data bytes Additional data with no specified format
     * @return `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))` unless throwing
     */
    function onTransferReceived(address operator, address sender, uint256 amount, bytes calldata data) external returns (bytes4);
}

File 21 of 22 : IERC1363Spender.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

/**
 * @title IERC1363Spender Interface
 * @author Vittorio Minacori (https://github.com/vittominacori)
 * @dev Interface for any contract that wants to support approveAndCall
 *  from ERC1363 token contracts as defined in
 *  https://eips.ethereum.org/EIPS/eip-1363
 */
interface IERC1363Spender {
    /*
     * Note: the ERC-165 identifier for this interface is 0x7b04a2d0.
     * 0x7b04a2d0 === bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))
     */

    /**
     * @notice Handle the approval of ERC1363 tokens
     * @dev Any ERC1363 smart contract calls this function on the recipient
     * after an `approve`. This function MAY throw to revert and reject the
     * approval. Return of other than the magic value MUST result in the
     * transaction being reverted.
     * Note: the token contract address is always the message sender.
     * @param sender address The address which called `approveAndCall` function
     * @param amount uint256 The amount of tokens to be spent
     * @param data bytes Additional data with no specified format
     * @return `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))` unless throwing
     */
    function onApprovalReceived(address sender, uint256 amount, bytes calldata data) external returns (bytes4);
}

File 22 of 22 : TokenRecover.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

/**
 * @title TokenRecover
 * @author Vittorio Minacori (https://github.com/vittominacori)
 * @dev Allow to recover any ERC20 sent into the contract for error
 */
contract TokenRecover is Ownable {

    /**
     * @dev Remember that only owner can call so be careful when use on contracts generated from other contracts.
     * @param tokenAddress The token contract address
     * @param tokenAmount Number of tokens to be sent
     */
    function recoverERC20(address tokenAddress, uint256 tokenAmount) public onlyOwner {
        IERC20(tokenAddress).transfer(owner(), tokenAmount);
    }
}

Settings
{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"uint8","name":"decimals","type":"uint8"},{"internalType":"uint256","name":"cap","type":"uint256"},{"internalType":"uint256","name":"initialBalance","type":"uint256"},{"internalType":"address payable","name":"feeReceiver","type":"address"}],"stateMutability":"payable","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":[],"name":"MintFinished","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","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"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINTER_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"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":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approveAndCall","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"approveAndCall","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":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"cap","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":[],"name":"finishMinting","outputs":[],"stateMutability":"nonpayable","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":[{"internalType":"address","name":"account","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"mintingFinished","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"tokenAddress","type":"address"},{"internalType":"uint256","name":"tokenAmount","type":"uint256"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","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":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","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":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferAndCall","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"transferAndCall","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":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"transferFromAndCall","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":"transferFromAndCall","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

00000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000006342fd08f00f63780000000000000000000000000000000000000000000000006342fd08f00f637800000000000000000000000000000022338e74d195b7f166f647070c75b7de944e161200000000000000000000000000000000000000000000000000000000000000074d656c616c69650000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034d454c0000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : name (string): Melalie
Arg [1] : symbol (string): MEL
Arg [2] : decimals (uint8): 18
Arg [3] : cap (uint256): 120000000000000000000000000
Arg [4] : initialBalance (uint256): 120000000000000000000000000
Arg [5] : feeReceiver (address): 0x22338e74d195b7f166f647070c75b7de944e1612

-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000012
Arg [3] : 0000000000000000000000000000000000000000006342fd08f00f6378000000
Arg [4] : 0000000000000000000000000000000000000000006342fd08f00f6378000000
Arg [5] : 00000000000000000000000022338e74d195b7f166f647070c75b7de944e1612
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [7] : 4d656c616c696500000000000000000000000000000000000000000000000000
Arg [8] : 0000000000000000000000000000000000000000000000000000000000000003
Arg [9] : 4d454c0000000000000000000000000000000000000000000000000000000000


Block Transaction Difficulty Gas Used Reward
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.

A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.