Contract Source Code:
File 1 of 1 : MOOX
// SPDX-License-Identifier: MIT
pragma solidity ^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 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) {
return msg.sender;
}
}
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
require(!paused(), "Pausable: paused");
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
require(paused(), "Pausable: not paused");
_;
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
/**
* @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 `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, 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 `from` to `to` 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 from,
address to,
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);
}
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
/**
* @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 Contracts guidelines: functions revert
* instead 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, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override 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 this function is
* overridden;
*
* 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 override returns (uint8) {
return 18;
}
/**
* @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:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, 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}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, 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}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
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) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + 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) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `sender` to `recipient`.
*
* This 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:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
}
_balances[to] += amount;
emit Transfer(from, to, 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:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amount;
_balances[account] += 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");
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= 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 Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @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 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 {}
}
/**
* @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() {
_transferOwnership(_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 Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (a supervisor) that can be granted exclusive access to
* specific functions.
*
* By default, the supervisor account will be the one that deploys the contract. This
* can later be changed with {transferSupervisorOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlySupervisor`, which can be applied to your functions to restrict their use to
* the supervisor.
*/
abstract contract Supervisable is Context {
address private _supervisor;
event SupervisorOwnershipTransferred(address indexed previouSupervisor, address indexed newSupervisor);
/**
* @dev Initializes the contract setting the deployer as the initial supervisor.
*/
constructor() {
_transferSupervisorOwnership(_msgSender());
}
/**
* @dev Returns the address of the current supervisor.
*/
function supervisor() public view virtual returns (address) {
return _supervisor;
}
/**
* @dev Throws if called by any account other than the supervisor.
*/
modifier onlySupervisor() {
require(supervisor() == _msgSender(), "Supervisable: caller is not the supervisor");
_;
}
/**
* @dev Transfers supervisor ownership of the contract to a new account (`newSupervisor`).
* Internal function without access restriction.
*/
function _transferSupervisorOwnership(address newSupervisor) internal virtual {
address oldSupervisor = _supervisor;
_supervisor = newSupervisor;
emit SupervisorOwnershipTransferred(oldSupervisor, newSupervisor);
}
}
/**
* @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 Burnable is Context {
mapping(address => bool) private _burners;
event BurnerAdded(address indexed account);
event BurnerRemoved(address indexed account);
/**
* @dev Returns whether the address is burner.
*/
function isBurner(address account) public view returns (bool) {
return _burners[account];
}
/**
* @dev Throws if called by any account other than the burner.
*/
modifier onlyBurner() {
require(_burners[_msgSender()], "Burnable: caller is not the burner");
_;
}
/**
* @dev Add burner, only owner can add burner.
*/
function _addBurner(address account) internal {
_burners[account] = true;
emit BurnerAdded(account);
}
/**
* @dev Remove operator, only owner can remove operator
*/
function _removeBurner(address account) internal {
_burners[account] = false;
emit BurnerRemoved(account);
}
}
/**
* @dev Contract for freezing mechanism.
* Owner can add freezed account.
* Supervisor can remove freezed account.
*/
contract Freezable is Context {
mapping(address => bool) private _freezes;
event Freezed(address indexed account);
event Unfreezed(address indexed account);
/**
* @dev Freeze account, only owner can freeze
*/
function _freeze(address account) internal {
_freezes[account] = true;
emit Freezed(account);
}
/**
* @dev Unfreeze account, only supervisor can unfreeze
*/
function _unfreeze(address account) internal {
_freezes[account] = false;
emit Unfreezed(account);
}
/**
* @dev Returns whether the address is freezed.
*/
function isFreezed(address account) public view returns (bool) {
return _freezes[account];
}
}
/**
* @dev Contract for locking mechanism.
* Locker can add locked account.
* Supervisor can remove locked account.
*/
contract Lockable is Context {
struct TimeLock {
uint256 amount;
uint256 expiresAt;
}
struct VestingLock {
uint256 amount;
uint256 startsAt;
uint256 period;
uint256 count;
}
mapping(address => bool) private _lockers;
mapping(address => TimeLock[]) private _timeLocks;
mapping(address => VestingLock) private _vestingLocks;
event LockerAdded(address indexed account);
event LockerRemoved(address indexed account);
event TimeLocked(address indexed account);
event TimeUnlocked(address indexed account);
event VestingLocked(address indexed account);
event VestingUnlocked(address indexed account);
/**
* @dev Throws if called by any account other than the locker.
*/
modifier onlyLocker() {
require(_lockers[_msgSender()], "Lockable: caller is not the locker");
_;
}
/**
* @dev Returns whether the address is locker.
*/
function isLocker(address account) public view returns (bool) {
return _lockers[account];
}
/**
* @dev Add locker, only owner can add locker
*/
function _addLocker(address account) internal {
_lockers[account] = true;
emit LockerAdded(account);
}
/**
* @dev Remove locker, only owner can remove locker
*/
function _removeLocker(address account) internal {
_lockers[account] = false;
emit LockerRemoved(account);
}
/**
* @dev Add time lock, only locker can add
*/
function _addTimeLock(
address account,
uint256 amount,
uint256 expiresAt
) internal {
require(amount > 0, "Time Lock: lock amount is 0");
require(expiresAt > block.timestamp, "Time Lock: invalid expire date");
_timeLocks[account].push(TimeLock(amount, expiresAt));
emit TimeLocked(account);
}
/**
* @dev Remove time lock, only supervisor can remove
* @param account The address want to remove time lock
* @param index Time lock index
*/
function _removeTimeLock(address account, uint8 index) internal {
require(_timeLocks[account].length > index && index >= 0, "Time Lock: invalid index");
uint256 len = _timeLocks[account].length;
if (len - 1 != index) {
// if it is not last item, swap it
_timeLocks[account][index] = _timeLocks[account][len - 1];
}
_timeLocks[account].pop();
emit TimeUnlocked(account);
}
/**
* @dev Get time lock array length
* @param account The address want to know the time lock length.
* @return time lock length
*/
function getTimeLockLength(address account) public view returns (uint256) {
return _timeLocks[account].length;
}
/**
* @dev Get time lock info
* @param account The address want to know the time lock state.
* @param index Time lock index
* @return time lock info
*/
function getTimeLock(address account, uint8 index) public view returns (uint256, uint256) {
require(_timeLocks[account].length > index && index >= 0, "Time Lock: invalid index");
return (_timeLocks[account][index].amount, _timeLocks[account][index].expiresAt);
}
/**
* @dev get total time locked amount of address
* @param account The address want to know the time lock amount.
* @return time locked amount
*/
function getTimeLockedAmount(address account) public view returns (uint256) {
uint256 timeLockedAmount = 0;
uint256 len = _timeLocks[account].length;
for (uint256 i = 0; i < len; i++) {
if (block.timestamp < _timeLocks[account][i].expiresAt) {
timeLockedAmount = timeLockedAmount + _timeLocks[account][i].amount;
}
}
return timeLockedAmount;
}
/**
* @dev Add vesting lock, only locker can add
* @param account vesting lock account.
* @param amount vesting lock amount.
* @param startsAt vesting lock release start date.
* @param period vesting lock period. End date is startsAt + (period - 1) * count
* @param count vesting lock count. If count is 1, it works like a time lock
*/
function _addVestingLock(
address account,
uint256 amount,
uint256 startsAt,
uint256 period,
uint256 count
) internal {
require(account != address(0), "Vesting Lock: lock from the zero address");
require(startsAt > block.timestamp, "Vesting Lock: must set after now");
require(amount > 0, "Vesting Lock: amount is 0");
require(period > 0, "Vesting Lock: period is 0");
require(count > 0, "Vesting Lock: count is 0");
_vestingLocks[account] = VestingLock(amount, startsAt, period, count);
emit VestingLocked(account);
}
/**
* @dev Remove vesting lock, only supervisor can remove
* @param account The address want to remove the vesting lock
*/
function _removeVestingLock(address account) internal {
_vestingLocks[account] = VestingLock(0, 0, 0, 0);
emit VestingUnlocked(account);
}
/**
* @dev Get vesting lock info
* @param account The address want to know the vesting lock state.
* @return vesting lock info
*/
function getVestingLock(address account)
public
view
returns (
uint256,
uint256,
uint256,
uint256
)
{
return (_vestingLocks[account].amount, _vestingLocks[account].startsAt, _vestingLocks[account].period, _vestingLocks[account].count);
}
/**
* @dev Get total vesting locked amount of address, locked amount will be released by 100%/months
* If months is 5, locked amount released 20% per 1 month.
* @param account The address want to know the vesting lock amount.
* @return vesting locked amount
*/
function getVestingLockedAmount(address account) public view returns (uint256) {
uint256 vestingLockedAmount = 0;
uint256 amount = _vestingLocks[account].amount;
if (amount > 0) {
uint256 startsAt = _vestingLocks[account].startsAt;
uint256 period = _vestingLocks[account].period;
uint256 count = _vestingLocks[account].count;
uint256 expiresAt = startsAt + period * (count - 1);
uint256 timestamp = block.timestamp;
if (timestamp < startsAt) {
vestingLockedAmount = amount;
} else if (timestamp < expiresAt) {
vestingLockedAmount = (amount * ((expiresAt - timestamp) / period + 1)) / count;
}
}
return vestingLockedAmount;
}
/**
* @dev Get all locked amount
* @param account The address want to know the all locked amount
* @return all locked amount
*/
function getAllLockedAmount(address account) public view returns (uint256) {
return getTimeLockedAmount(account) + getVestingLockedAmount(account);
}
}
/**
* @dev Contract for MOOXMOO Token
*/
contract MOOX is Pausable, Ownable, Supervisable, Burnable, Freezable, Lockable, ERC20 {
uint256 private constant _initialSupply = 1_000_000_000e18;
constructor() ERC20("MOOXMOO", "MOOX") {
_mint(_msgSender(), _initialSupply);
}
/**
* @dev Recover ERC20 coin in contract address.
* @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);
}
/**
* @dev lock and pause before transfer token
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal override(ERC20) {
super._beforeTokenTransfer(from, to, amount);
require(!isFreezed(from), "Freezable: token transfer from freezed account");
require(!isFreezed(to), "Freezable: token transfer to freezed account");
require(!isFreezed(_msgSender()), "Freezable: token transfer called from freezed account");
require(!paused(), "Pausable: token transfer while paused");
require(balanceOf(from) - getAllLockedAmount(from) >= amount, "Lockable: insufficient transfer amount");
}
/**
* @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 onlyOwner whenNotPaused {
_transferOwnership(address(0));
}
/**
* @dev only supervisor can renounce supervisor ownership
*/
function renounceSupervisorOwnership() public onlySupervisor whenNotPaused {
_transferSupervisorOwnership(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 onlyOwner whenNotPaused {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev only supervisor can transfer supervisor ownership
*/
function transferSupervisorOwnership(address newSupervisor) public onlySupervisor whenNotPaused {
require(newSupervisor != address(0), "Supervisable: new supervisor is the zero address");
_transferSupervisorOwnership(newSupervisor);
}
/**
* @dev pause all coin transfer
*/
function pause() public onlyOwner whenNotPaused {
_pause();
}
/**
* @dev unpause all coin transfer
*/
function unpause() public onlyOwner whenPaused {
_unpause();
}
/**
* @dev only owner can lock account
*/
function freeze(address account) public onlyOwner whenNotPaused {
_freeze(account);
}
/**
* @dev only supervisor can unfreeze account
*/
function unfreeze(address account) public onlySupervisor whenNotPaused {
_unfreeze(account);
}
/**
* @dev only owner can add burner
*/
function addBurner(address account) public onlyOwner whenNotPaused {
_addBurner(account);
}
/**
* @dev only owner can remove burner
*/
function removeBurner(address account) public onlyOwner whenNotPaused {
_removeBurner(account);
}
/**
* @dev burn burner's coin
*/
function burn(uint256 amount) public onlyBurner whenNotPaused {
_burn(_msgSender(), amount);
}
/**
* @dev only owner can add locker
*/
function addLocker(address account) public onlyOwner whenNotPaused {
_addLocker(account);
}
/**
* @dev only owner can remove locker
*/
function removeLocker(address account) public onlyOwner whenNotPaused {
_removeLocker(account);
}
/**
* @dev only locker can add time lock
*/
function addTimeLock(
address account,
uint256 amount,
uint256 expiresAt
) public onlyLocker whenNotPaused {
_addTimeLock(account, amount, expiresAt);
}
/**
* @dev only supervisor can remove time lock
*/
function removeTimeLock(address account, uint8 index) public onlySupervisor whenNotPaused {
_removeTimeLock(account, index);
}
/**
* @dev only locker can add vesting lock
*/
function addVestingLock(
address account,
uint256 startsAt,
uint256 period,
uint256 count
) public onlyLocker whenNotPaused {
_addVestingLock(account, balanceOf(account), startsAt, period, count);
}
/**
* @dev only supervisor can remove vesting lock
*/
function removeVestingLock(address account) public onlySupervisor whenNotPaused {
_removeVestingLock(account);
}
}