Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

pragma solidity 0.7.6;

// SPDX-License-Identifier: MIT

import '../dependencies/openzeppelin/contracts/SafeMath.sol';
import '../dependencies/openzeppelin/contracts/IERC20.sol';

contract LendleToken is IERC20 {
  using SafeMath for uint256;

  string public constant symbol = 'LEND';
  string public constant name = 'Lendle Protocol Token';
  uint8 public constant decimals = 18;
  uint256 public override totalSupply;
  uint256 public immutable maxTotalSupply;
  address public minter;

  mapping(address => uint256) public override balanceOf;
  mapping(address => mapping(address => uint256)) public override allowance;

  constructor(uint256 _maxTotalSupply) {
    maxTotalSupply = _maxTotalSupply;
    emit Transfer(address(0), msg.sender, 0);
  }

  function setMinter(address _minter) external returns (bool) {
    require(minter == address(0));
    minter = _minter;
    return true;
  }

  function approve(address _spender, uint256 _value) external override returns (bool) {
    allowance[msg.sender][_spender] = _value;
    emit Approval(msg.sender, _spender, _value);
    return true;
  }

  /** shared logic for transfer and transferFrom */
  function _transfer(
    address _from,
    address _to,
    uint256 _value
  ) internal {
    require(balanceOf[_from] >= _value, 'Insufficient balance');
    balanceOf[_from] = balanceOf[_from].sub(_value);
    balanceOf[_to] = balanceOf[_to].add(_value);
    emit Transfer(_from, _to, _value);
  }

  /**
    @notice Transfer tokens to a specified address
    @param _to The address to transfer to
    @param _value The amount to be transferred
    @return Success boolean
  */
  function transfer(address _to, uint256 _value) public override returns (bool) {
    _transfer(msg.sender, _to, _value);
    return true;
  }

  /**
    @notice Transfer tokens from one address to another
    @param _from The address which you want to send tokens from
    @param _to The address which you want to transfer to
    @param _value The amount of tokens to be transferred
    @return Success boolean
  */
  function transferFrom(
    address _from,
    address _to,
    uint256 _value
  ) public override returns (bool) {
    uint256 allowed = allowance[_from][msg.sender];
    require(allowed >= _value, 'Insufficient allowance');
    if (allowed != uint256(-1)) {
      allowance[_from][msg.sender] = allowed.sub(_value);
    }
    _transfer(_from, _to, _value);
    return true;
  }

  function mint(address _to, uint256 _value) external returns (bool) {
    require(msg.sender == minter);
    balanceOf[_to] = balanceOf[_to].add(_value);
    totalSupply = totalSupply.add(_value);
    require(maxTotalSupply >= totalSupply);
    emit Transfer(address(0), _to, _value);
    return true;
  }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.6;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.6;

/**
 * @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, 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) {
    return sub(a, b, 'SafeMath: subtraction overflow');
  }

  /**
   * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
   * overflow (when the result is negative).
   *
   * 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);
    uint256 c = a - b;

    return c;
  }

  /**
   * @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) {
    // 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 0;
    }

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

    return c;
  }

  /**
   * @dev Returns the integer division of two unsigned integers. Reverts 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) {
    return div(a, b, 'SafeMath: division by zero');
  }

  /**
   * @dev Returns the integer division of two unsigned integers. Reverts with custom message 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,
    string memory errorMessage
  ) internal pure returns (uint256) {
    // Solidity only automatically asserts when dividing by 0
    require(b > 0, errorMessage);
    uint256 c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
  }

  /**
   * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
   * Reverts 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) {
    return mod(a, b, 'SafeMath: modulo by zero');
  }

  /**
   * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
   * Reverts with custom message 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,
    string memory errorMessage
  ) internal pure returns (uint256) {
    require(b != 0, errorMessage);
    return a % b;
  }
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"uint256","name":"_maxTotalSupply","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":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":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTotalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"minter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_minter","type":"address"}],"name":"setMinter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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

0x608060405234801561001057600080fd5b50600436106100cf5760003560e01c8063313ce5671161008c57806395d89b411161006657806395d89b411461027d578063a9059cbb14610285578063dd62ed3e146102b1578063fca3b5aa146102df576100cf565b8063313ce5671461020d57806340c10f191461022b57806370a0823114610257576100cf565b806306fdde03146100d45780630754617214610151578063095ea7b31461017557806318160ddd146101b557806323b872dd146101cf5780632ab4d05214610205575b600080fd5b6100dc610305565b6040805160208082528351818301528351919283929083019185019080838360005b838110156101165781810151838201526020016100fe565b50505050905090810190601f1680156101435780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b610159610336565b604080516001600160a01b039092168252519081900360200190f35b6101a16004803603604081101561018b57600080fd5b506001600160a01b038135169060200135610345565b604080519115158252519081900360200190f35b6101bd6103ab565b60408051918252519081900360200190f35b6101a1600480360360608110156101e557600080fd5b506001600160a01b038135811691602081013590911690604001356103b1565b6101bd610471565b610215610495565b6040805160ff9092168252519081900360200190f35b6101a16004803603604081101561024157600080fd5b506001600160a01b03813516906020013561049a565b6101bd6004803603602081101561026d57600080fd5b50356001600160a01b0316610579565b6100dc61058b565b6101a16004803603604081101561029b57600080fd5b506001600160a01b0381351690602001356105ab565b6101bd600480360360408110156102c757600080fd5b506001600160a01b03813581169160200135166105c1565b6101a1600480360360208110156102f557600080fd5b50356001600160a01b03166105de565b604051806040016040528060158152602001742632b732363290283937ba37b1b7b6102a37b5b2b760591b81525081565b6001546001600160a01b031681565b3360008181526003602090815260408083206001600160a01b038716808552908352818420869055815186815291519394909390927f8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925928290030190a350600192915050565b60005481565b6001600160a01b038316600090815260036020908152604080832033845290915281205482811015610423576040805162461bcd60e51b8152602060048201526016602482015275496e73756666696369656e7420616c6c6f77616e636560501b604482015290519081900360640190fd5b600019811461045b57610436818461061a565b6001600160a01b03861660009081526003602090815260408083203384529091529020555b610466858585610663565b506001949350505050565b7f00000000000000000000000000000000000000000052b7d2dcc80cd2e400000081565b601281565b6001546000906001600160a01b031633146104b457600080fd5b6001600160a01b0383166000908152600260205260409020546104d79083610775565b6001600160a01b038416600090815260026020526040812091909155546104fe9083610775565b60008190557f00000000000000000000000000000000000000000052b7d2dcc80cd2e4000000101561052f57600080fd5b6040805183815290516001600160a01b038516916000917fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef9181900360200190a350600192915050565b60026020526000908152604090205481565b604051806040016040528060048152602001631311539160e21b81525081565b60006105b8338484610663565b50600192915050565b600360209081526000928352604080842090915290825290205481565b6001546000906001600160a01b0316156105f757600080fd5b50600180546001600160a01b0383166001600160a01b0319909116178155919050565b600061065c83836040518060400160405280601e81526020017f536166654d6174683a207375627472616374696f6e206f766572666c6f7700008152506107cf565b9392505050565b6001600160a01b0383166000908152600260205260409020548111156106c7576040805162461bcd60e51b8152602060048201526014602482015273496e73756666696369656e742062616c616e636560601b604482015290519081900360640190fd5b6001600160a01b0383166000908152600260205260409020546106ea908261061a565b6001600160a01b0380851660009081526002602052604080822093909355908416815220546107199082610775565b6001600160a01b0380841660008181526002602090815260409182902094909455805185815290519193928716927fddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef92918290030190a3505050565b60008282018381101561065c576040805162461bcd60e51b815260206004820152601b60248201527f536166654d6174683a206164646974696f6e206f766572666c6f770000000000604482015290519081900360640190fd5b6000818484111561085e5760405162461bcd60e51b81526004018080602001828103825283818151815260200191508051906020019080838360005b8381101561082357818101518382015260200161080b565b50505050905090810190601f1680156108505780820380516001836020036101000a031916815260200191505b509250505060405180910390fd5b50505090039056fea26469706673582212203d065649e72b99be14d3337eb40cf76bdb06201a6f7db3e33a60f575d227518464736f6c63430007060033

00000000000000000000000000000000000000000052b7d2dcc80cd2e4000000

-----Decoded View---------------
Arg [0] : _maxTotalSupply (uint256): 100000000000000000000000000

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000052b7d2dcc80cd2e4000000