Overview
FTM Balance
110.564980847994546829 FTM
FTM Value
$111.69 (@ $1.01/FTM)More Info
Private Name Tags
ContractCreator:
Latest 25 from a total of 204 transactions
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Borrow Token | 52386398 | 469 days ago | IN | 0 FTM | 0.00182028 | ||||
Create Vault | 52386365 | 469 days ago | IN | 0 FTM | 0.00220179 | ||||
Borrow Token | 52378419 | 469 days ago | IN | 0 FTM | 0.00702478 | ||||
Deposit Collater... | 52378397 | 469 days ago | IN | 1 FTM | 0.00298732 | ||||
Create Vault | 52378379 | 469 days ago | IN | 0 FTM | 0.0064481 | ||||
Create Vault | 52375832 | 469 days ago | IN | 0 FTM | 0.00189 | ||||
Create Vault | 52269890 | 471 days ago | IN | 0 FTM | 0.00221555 | ||||
Create Vault | 52237418 | 472 days ago | IN | 0 FTM | 0.00295454 | ||||
Create Vault | 52237404 | 472 days ago | IN | 0 FTM | 0.0029526 | ||||
Create Vault | 52237345 | 472 days ago | IN | 0 FTM | 0.00264835 | ||||
Create Vault | 52233468 | 472 days ago | IN | 0 FTM | 0.00195465 | ||||
Create Vault | 52220566 | 472 days ago | IN | 0 FTM | 0.00446815 | ||||
Borrow Token | 52022685 | 476 days ago | IN | 0 FTM | 0.01171816 | ||||
Pay Back Token | 52022409 | 476 days ago | IN | 0 FTM | 0.00411036 | ||||
Create Vault | 52022201 | 476 days ago | IN | 0 FTM | 0.01548103 | ||||
Borrow Token | 52022141 | 476 days ago | IN | 0 FTM | 0.00827716 | ||||
Deposit Collater... | 52022126 | 476 days ago | IN | 1 FTM | 0.00582869 | ||||
Borrow Token | 52021676 | 476 days ago | IN | 0 FTM | 0.01310332 | ||||
Deposit Collater... | 52021645 | 476 days ago | IN | 10 FTM | 0.00483247 | ||||
Create Vault | 52021622 | 476 days ago | IN | 0 FTM | 0.00267043 | ||||
Create Vault | 51994940 | 477 days ago | IN | 0 FTM | 0.00282605 | ||||
Withdraw Collate... | 51955392 | 478 days ago | IN | 0 FTM | 0.00774279 | ||||
Borrow Token | 51955116 | 478 days ago | IN | 0 FTM | 0.01834743 | ||||
Pay Back Token | 51955074 | 478 days ago | IN | 0 FTM | 0.01877053 | ||||
Borrow Token | 51954877 | 478 days ago | IN | 0 FTM | 0.01949027 |
Latest 25 internal transactions (View All)
Parent Txn Hash | Block | From | To | Value | ||
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51955392 | 478 days ago | 0.5 FTM | ||||
51893185 | 480 days ago | 2 FTM | ||||
51893121 | 480 days ago | 0.21522555 FTM | ||||
51893035 | 480 days ago | 1.77977757 FTM | ||||
51889576 | 480 days ago | 2.00002 FTM | ||||
51386479 | 490 days ago | 0.99863569 FTM | ||||
44101861 | 604 days ago | 8.47878114 FTM | ||||
44072687 | 604 days ago | 5.71689884 FTM | ||||
44040237 | 604 days ago | 4.24483124 FTM | ||||
43995912 | 605 days ago | 0.18201421 FTM | ||||
43993594 | 605 days ago | 0.79992878 FTM | ||||
43984415 | 605 days ago | 1.39074009 FTM | ||||
43598136 | 611 days ago | 0.00007275 FTM | ||||
43598077 | 611 days ago | 0.00002429 FTM | ||||
43590011 | 611 days ago | 0.00002431 FTM | ||||
43589101 | 611 days ago | 0.00002418 FTM | ||||
43589046 | 611 days ago | 2.44855421 FTM | ||||
43589014 | 611 days ago | 4.85368438 FTM | ||||
43315815 | 615 days ago | 0.07885755 FTM | ||||
43315791 | 615 days ago | 4.23626096 FTM | ||||
43313024 | 615 days ago | 0.13763316 FTM | ||||
43312804 | 615 days ago | 0.24692631 FTM | ||||
43312723 | 615 days ago | 0.00004296 FTM | ||||
43310855 | 615 days ago | 0.42231376 FTM | ||||
43306443 | 615 days ago | 8.4453187 FTM |
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Contract Name:
StablecoinEnhanced
Compiler Version
v0.8.7+commit.e28d00a7
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/access/Ownable.sol"; import "./Stablecoin.sol"; contract StablecoinEnhanced is Stablecoin, Ownable { constructor( address ethPriceSourceAddress, uint256 minimumCollateralPercentage, address vaultAddress, address usdvAddress ) Stablecoin( ethPriceSourceAddress, minimumCollateralPercentage, vaultAddress, usdvAddress ) { treasury=0; } function changeEthPriceSource(address ethPriceSourceAddress) external onlyOwner() { ethPriceSource = IPriceSource(ethPriceSourceAddress); } function setTokenPeg(uint256 _tokenPeg) external onlyOwner() { tokenPeg = _tokenPeg; } function setStabilityPool(address _pool) external onlyOwner() { stabilityPool = _pool; } function setDebtCeiling(uint256 amount) external onlyOwner() { require(usdv.supplyMap(address(this)) <= debtCeiling, "setDebtCeiling: Must be over the amount of outstanding debt."); debtCeiling = amount; } function setClosingFee(uint256 amount) external onlyOwner() { closingFee = amount; } function setTreasury(uint256 _treasury) external onlyOwner() { require(vaultExistence[_treasury], "Vault does not exist"); treasury = _treasury; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; contract Anchor is ReentrancyGuard, Ownable { ERC20 xToken; ERC20 usdv; uint256 public xTokenRate; uint256 public usdvRate; uint256 private decimalsDifferenceTimes100; constructor(address _xToken, address _usdv) { xToken = ERC20(_xToken); usdv = ERC20(_usdv); usdvRate = 99; xTokenRate = 101; decimalsDifferenceTimes100 = 10**(uint256(usdv.decimals()) - uint256(xToken.decimals())) * 100; } function setTokenRatePerUSDV(uint256 _rate) onlyOwner() external { xTokenRate = _rate; } function setUSDVRatePerToken(uint256 _rate) onlyOwner() external { usdvRate = _rate; } function transferToken(address token, uint256 amountToken) onlyOwner() external { IERC20(token).transfer(owner(), amountToken); } // this returns the reserves in the contract function getReserves() external view returns(uint256, uint256) { return ( usdv.balanceOf(address(this)), xToken.balanceOf(address(this)) ); } // the user must approve the balance so the contract can take it out of the user's account // else this will fail. function swapFrom(uint256 amount) external nonReentrant { require(amount!=0, "swapFrom: invalid amount"); require(usdv.balanceOf(address(this))!=0, "swapFrom: Not enough usdv in reserves"); // for every 1.01 usdt we get 1.00 usdv // 1 010 000 usdt we get 1 000 000 000 000 000 000 usdv uint256 amountToSend = amount * decimalsDifferenceTimes100 / xTokenRate; require(usdv.balanceOf(address(this)) >= amountToSend, "swapFrom: Not enough usdv in reserves"); // Transfer USDT to contract xToken.transferFrom(msg.sender, address(this), amount); // Transfer usdv to sender usdv.transfer(msg.sender, amountToSend); } function swapTo(uint256 amount) external nonReentrant { require(amount!=0, "swapTo: invalid amount"); require(xToken.balanceOf(address(this))!=0, "swapTo: Not enough USDT in reserves"); // for every 1.00 usdv we get 0.99 usdt // 1 000 000 000 000 000 000 we get 980 000 (bc decimals) uint256 amountToSend = amount * usdvRate / decimalsDifferenceTimes100; require(xToken.balanceOf(address(this)) >= amountToSend, "swapTo: Not enough usdt in reserves"); // Tranfer tokens from sender to this contract usdv.transferFrom(msg.sender, address(this), amount); // Transfer amount minus fees to sender xToken.transfer(msg.sender, amountToSend); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol) pragma solidity ^0.8.0; import "./IERC20.sol"; import "./extensions/IERC20Metadata.sol"; import "../../utils/Context.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 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, _allowances[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 = _allowances[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); _afterTokenTransfer(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"); _beforeTokenTransfer(address(0), account, amount); _totalSupply += amount; _balances[account] += amount; emit Transfer(address(0), account, amount); _afterTokenTransfer(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); 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); _afterTokenTransfer(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 Spend `amount` form the allowance of `owner` toward `spender`. * * 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 Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens * has been transferred to `to`. * - when `from` is zero, `amount` tokens have been minted for `to`. * - when `to` is zero, `amount` of ``from``'s tokens have been 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 _afterTokenTransfer( address from, address to, uint256 amount ) internal virtual {} }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol) pragma solidity ^0.8.0; /** * @dev Contract module that helps prevent reentrant calls to a function. * * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier * available, which can be applied to functions to make sure there are no nested * (reentrant) calls to them. * * Note that because there is a single `nonReentrant` guard, functions marked as * `nonReentrant` may not call one another. This can be worked around by making * those functions `private`, and then adding `external` `nonReentrant` entry * points to them. * * TIP: If you would like to learn more about reentrancy and alternative ways * to protect against it, check out our blog post * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. */ abstract contract ReentrancyGuard { // Booleans are more expensive than uint256 or any type that takes up a full // word because each write operation emits an extra SLOAD to first read the // slot's contents, replace the bits taken up by the boolean, and then write // back. This is the compiler's defense against contract upgrades and // pointer aliasing, and it cannot be disabled. // The values being non-zero value makes deployment a bit more expensive, // but in exchange the refund on every call to nonReentrant will be lower in // amount. Since refunds are capped to a percentage of the total // transaction's gas, it is best to keep them low in cases like this one, to // increase the likelihood of the full refund coming into effect. uint256 private constant _NOT_ENTERED = 1; uint256 private constant _ENTERED = 2; uint256 private _status; constructor() { _status = _NOT_ENTERED; } /** * @dev Prevents a contract from calling itself, directly or indirectly. * Calling a `nonReentrant` function from another `nonReentrant` * function is not supported. It is possible to prevent this from happening * by making the `nonReentrant` function external, and making it call a * `private` function that does the actual work. */ modifier nonReentrant() { // On the first call to nonReentrant, _notEntered will be true require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); // Any calls to nonReentrant after this point will fail _status = _ENTERED; _; // By storing the original value once again, a refund is triggered (see // https://eips.ethereum.org/EIPS/eip-2200) _status = _NOT_ENTERED; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/Ownable.sol) pragma solidity ^0.8.0; 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() { _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 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 { _transferOwnership(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"); _transferOwnership(newOwner); } /** * @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); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol) pragma solidity ^0.8.0; /** * @dev Interface of the ERC20 standard as defined in the EIP. */ interface IERC20 { /** * @dev Returns the amount of tokens in existence. */ function totalSupply() external view returns (uint256); /** * @dev Returns the amount of tokens owned by `account`. */ function balanceOf(address account) external view returns (uint256); /** * @dev Moves `amount` tokens from the caller's account to `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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; /** * @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); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Context.sol) 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; } function _msgData() internal view virtual returns (bytes calldata) { return msg.data; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/access/Ownable.sol"; import "./interfaces/IVaultMetaRegistry.sol"; contract VaultMetaRegistry is IVaultMetaRegistry, Ownable { mapping (address => address) public _registry; function getMetaProvider(address vault_address) public override view returns (address) { return _registry[vault_address]; } function setMetaProvider(address vault_address, address vault_meta) public onlyOwner() { _registry[vault_address] = vault_meta; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface IVaultMetaRegistry { function getMetaProvider(address vault_address) external view returns (address); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "./interfaces/IVaultMetaProvider.sol"; import "./interfaces/IVaultMetaRegistry.sol"; contract VaultNFTv3 is ERC721 { address public meta; string public base; constructor(string memory name, string memory symbol, address _meta, string memory baseURI) ERC721(name, symbol) { meta = _meta; base=baseURI; } function tokenURI(uint256 tokenId) public view override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); IVaultMetaRegistry registry = IVaultMetaRegistry(meta); IVaultMetaProvider provider = IVaultMetaProvider(registry.getMetaProvider(address(this))); return bytes(_baseURI()).length > 0 ? string(abi.encodePacked(_baseURI(), provider.getTokenURI(address(this), tokenId))) : ""; } function _baseURI() internal view override returns (string memory) { return base; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol) pragma solidity ^0.8.0; import "./IERC721.sol"; import "./IERC721Receiver.sol"; import "./extensions/IERC721Metadata.sol"; import "../../utils/Address.sol"; import "../../utils/Context.sol"; import "../../utils/Strings.sol"; import "../../utils/introspection/ERC165.sol"; /** * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including * the Metadata extension, but not including the Enumerable extension, which is available separately as * {ERC721Enumerable}. */ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { using Address for address; using Strings for uint256; // Token name string private _name; // Token symbol string private _symbol; // Mapping from token ID to owner address mapping(uint256 => address) private _owners; // Mapping owner address to token count mapping(address => uint256) private _balances; // Mapping from token ID to approved address mapping(uint256 => address) private _tokenApprovals; // Mapping from owner to operator approvals mapping(address => mapping(address => bool)) private _operatorApprovals; /** * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. */ constructor(string memory name_, string memory symbol_) { _name = name_; _symbol = symbol_; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { return interfaceId == type(IERC721).interfaceId || interfaceId == type(IERC721Metadata).interfaceId || super.supportsInterface(interfaceId); } /** * @dev See {IERC721-balanceOf}. */ function balanceOf(address owner) public view virtual override returns (uint256) { require(owner != address(0), "ERC721: balance query for the zero address"); return _balances[owner]; } /** * @dev See {IERC721-ownerOf}. */ function ownerOf(uint256 tokenId) public view virtual override returns (address) { address owner = _owners[tokenId]; require(owner != address(0), "ERC721: owner query for nonexistent token"); return owner; } /** * @dev See {IERC721Metadata-name}. */ function name() public view virtual override returns (string memory) { return _name; } /** * @dev See {IERC721Metadata-symbol}. */ function symbol() public view virtual override returns (string memory) { return _symbol; } /** * @dev See {IERC721Metadata-tokenURI}. */ function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token"); string memory baseURI = _baseURI(); return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; } /** * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each * token will be the concatenation of the `baseURI` and the `tokenId`. Empty * by default, can be overriden in child contracts. */ function _baseURI() internal view virtual returns (string memory) { return ""; } /** * @dev See {IERC721-approve}. */ function approve(address to, uint256 tokenId) public virtual override { address owner = ERC721.ownerOf(tokenId); require(to != owner, "ERC721: approval to current owner"); require( _msgSender() == owner || isApprovedForAll(owner, _msgSender()), "ERC721: approve caller is not owner nor approved for all" ); _approve(to, tokenId); } /** * @dev See {IERC721-getApproved}. */ function getApproved(uint256 tokenId) public view virtual override returns (address) { require(_exists(tokenId), "ERC721: approved query for nonexistent token"); return _tokenApprovals[tokenId]; } /** * @dev See {IERC721-setApprovalForAll}. */ function setApprovalForAll(address operator, bool approved) public virtual override { _setApprovalForAll(_msgSender(), operator, approved); } /** * @dev See {IERC721-isApprovedForAll}. */ function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { return _operatorApprovals[owner][operator]; } /** * @dev See {IERC721-transferFrom}. */ function transferFrom( address from, address to, uint256 tokenId ) public virtual override { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _transfer(from, to, tokenId); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId ) public virtual override { safeTransferFrom(from, to, tokenId, ""); } /** * @dev See {IERC721-safeTransferFrom}. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes memory _data ) public virtual override { require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved"); _safeTransfer(from, to, tokenId, _data); } /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * `_data` is additional data, it has no specified format and it is sent in call to `to`. * * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. * implement alternative mechanisms to perform token transfer, such as signature-based. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeTransfer( address from, address to, uint256 tokenId, bytes memory _data ) internal virtual { _transfer(from, to, tokenId); require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer"); } /** * @dev Returns whether `tokenId` exists. * * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. * * Tokens start existing when they are minted (`_mint`), * and stop existing when they are burned (`_burn`). */ function _exists(uint256 tokenId) internal view virtual returns (bool) { return _owners[tokenId] != address(0); } /** * @dev Returns whether `spender` is allowed to manage `tokenId`. * * Requirements: * * - `tokenId` must exist. */ function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { require(_exists(tokenId), "ERC721: operator query for nonexistent token"); address owner = ERC721.ownerOf(tokenId); return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender)); } /** * @dev Safely mints `tokenId` and transfers it to `to`. * * Requirements: * * - `tokenId` must not exist. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function _safeMint(address to, uint256 tokenId) internal virtual { _safeMint(to, tokenId, ""); } /** * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. */ function _safeMint( address to, uint256 tokenId, bytes memory _data ) internal virtual { _mint(to, tokenId); require( _checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer" ); } /** * @dev Mints `tokenId` and transfers it to `to`. * * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible * * Requirements: * * - `tokenId` must not exist. * - `to` cannot be the zero address. * * Emits a {Transfer} event. */ function _mint(address to, uint256 tokenId) internal virtual { require(to != address(0), "ERC721: mint to the zero address"); require(!_exists(tokenId), "ERC721: token already minted"); _beforeTokenTransfer(address(0), to, tokenId); _balances[to] += 1; _owners[tokenId] = to; emit Transfer(address(0), to, tokenId); _afterTokenTransfer(address(0), to, tokenId); } /** * @dev Destroys `tokenId`. * The approval is cleared when the token is burned. * * Requirements: * * - `tokenId` must exist. * * Emits a {Transfer} event. */ function _burn(uint256 tokenId) internal virtual { address owner = ERC721.ownerOf(tokenId); _beforeTokenTransfer(owner, address(0), tokenId); // Clear approvals _approve(address(0), tokenId); _balances[owner] -= 1; delete _owners[tokenId]; emit Transfer(owner, address(0), tokenId); _afterTokenTransfer(owner, address(0), tokenId); } /** * @dev Transfers `tokenId` from `from` to `to`. * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. * * Requirements: * * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * * Emits a {Transfer} event. */ function _transfer( address from, address to, uint256 tokenId ) internal virtual { require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); require(to != address(0), "ERC721: transfer to the zero address"); _beforeTokenTransfer(from, to, tokenId); // Clear approvals from the previous owner _approve(address(0), tokenId); _balances[from] -= 1; _balances[to] += 1; _owners[tokenId] = to; emit Transfer(from, to, tokenId); _afterTokenTransfer(from, to, tokenId); } /** * @dev Approve `to` to operate on `tokenId` * * Emits a {Approval} event. */ function _approve(address to, uint256 tokenId) internal virtual { _tokenApprovals[tokenId] = to; emit Approval(ERC721.ownerOf(tokenId), to, tokenId); } /** * @dev Approve `operator` to operate on all of `owner` tokens * * Emits a {ApprovalForAll} event. */ function _setApprovalForAll( address owner, address operator, bool approved ) internal virtual { require(owner != operator, "ERC721: approve to caller"); _operatorApprovals[owner][operator] = approved; emit ApprovalForAll(owner, operator, approved); } /** * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. * The call is not executed if the target address is not a contract. * * @param from address representing the previous owner of the given token ID * @param to target address that will receive the tokens * @param tokenId uint256 ID of the token to be transferred * @param _data bytes optional data to send along with the call * @return bool whether the call correctly returned the expected magic value */ function _checkOnERC721Received( address from, address to, uint256 tokenId, bytes memory _data ) private returns (bool) { if (to.isContract()) { try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) { return retval == IERC721Receiver.onERC721Received.selector; } catch (bytes memory reason) { if (reason.length == 0) { revert("ERC721: transfer to non ERC721Receiver implementer"); } else { assembly { revert(add(32, reason), mload(reason)) } } } } else { return true; } } /** * @dev Hook that is called before any token transfer. This includes minting * and burning. * * Calling conditions: * * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be * transferred to `to`. * - When `from` is zero, `tokenId` will be minted for `to`. * - When `to` is zero, ``from``'s `tokenId` 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 tokenId ) internal virtual {} /** * @dev Hook that is called after any transfer of tokens. This includes * minting and burning. * * Calling conditions: * * - when `from` and `to` are both non-zero. * - `from` and `to` are never both zero. * * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. */ function _afterTokenTransfer( address from, address to, uint256 tokenId ) internal virtual {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface IVaultMetaProvider { function getTokenURI(address vault_address, uint256 tokenId) external view returns (string memory); function getBaseURI() external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC721 compliant contract. */ interface IERC721 is IERC165 { /** * @dev Emitted when `tokenId` token is transferred from `from` to `to`. */ event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. */ event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); /** * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. */ event ApprovalForAll(address indexed owner, address indexed operator, bool approved); /** * @dev Returns the number of tokens in ``owner``'s account. */ function balanceOf(address owner) external view returns (uint256 balance); /** * @dev Returns the owner of the `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function ownerOf(uint256 tokenId) external view returns (address owner); /** * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients * are aware of the ERC721 protocol to prevent tokens from being forever locked. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Transfers `tokenId` token from `from` to `to`. * * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * * Emits a {Transfer} event. */ function transferFrom( address from, address to, uint256 tokenId ) external; /** * @dev Gives permission to `to` to transfer `tokenId` token to another account. * The approval is cleared when the token is transferred. * * Only a single account can be approved at a time, so approving the zero address clears previous approvals. * * Requirements: * * - The caller must own the token or be an approved operator. * - `tokenId` must exist. * * Emits an {Approval} event. */ function approve(address to, uint256 tokenId) external; /** * @dev Returns the account approved for `tokenId` token. * * Requirements: * * - `tokenId` must exist. */ function getApproved(uint256 tokenId) external view returns (address operator); /** * @dev Approve or remove `operator` as an operator for the caller. * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. * * Requirements: * * - The `operator` cannot be the caller. * * Emits an {ApprovalForAll} event. */ function setApprovalForAll(address operator, bool _approved) external; /** * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. * * See {setApprovalForAll} */ function isApprovedForAll(address owner, address operator) external view returns (bool); /** * @dev Safely transfers `tokenId` token from `from` to `to`. * * Requirements: * * - `from` cannot be the zero address. * - `to` cannot be the zero address. * - `tokenId` token must exist and be owned by `from`. * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. * * Emits a {Transfer} event. */ function safeTransferFrom( address from, address to, uint256 tokenId, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol) pragma solidity ^0.8.0; /** * @title ERC721 token receiver interface * @dev Interface for any contract that wants to support safeTransfers * from ERC721 asset contracts. */ interface IERC721Receiver { /** * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} * by `operator` from `from`, this function is called. * * It must return its Solidity selector to confirm the token transfer. * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. * * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`. */ function onERC721Received( address operator, address from, uint256 tokenId, bytes calldata data ) external returns (bytes4); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) pragma solidity ^0.8.0; import "../IERC721.sol"; /** * @title ERC-721 Non-Fungible Token Standard, optional metadata extension * @dev See https://eips.ethereum.org/EIPS/eip-721 */ interface IERC721Metadata is IERC721 { /** * @dev Returns the token collection name. */ function name() external view returns (string memory); /** * @dev Returns the token collection symbol. */ function symbol() external view returns (string memory); /** * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. */ function tokenURI(uint256 tokenId) external view returns (string memory); }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol) pragma solidity ^0.8.1; /** * @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 * ==== * * [IMPORTANT] * ==== * You shouldn't rely on `isContract` to protect against flash loan attacks! * * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract * constructor. * ==== */ function isContract(address account) internal view returns (bool) { // This method relies on extcodesize/address.code.length, which returns 0 // for contracts in construction, since the code is only stored at the end // of the constructor execution. return account.code.length > 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"); (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"); (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"); (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"); (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResult(success, returndata, errorMessage); } /** * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason using the provided one. * * _Available since v4.3._ */ function verifyCallResult( bool success, bytes memory returndata, string memory errorMessage ) internal 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 assembly { let returndata_size := mload(returndata) revert(add(32, returndata), returndata_size) } } else { revert(errorMessage); } } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/Strings.sol) pragma solidity ^0.8.0; /** * @dev String operations. */ library Strings { bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef"; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { // Inspired by OraclizeAPI's implementation - MIT licence // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol if (value == 0) { return "0"; } uint256 temp = value; uint256 digits; while (temp != 0) { digits++; temp /= 10; } bytes memory buffer = new bytes(digits); while (value != 0) { digits -= 1; buffer[digits] = bytes1(uint8(48 + uint256(value % 10))); value /= 10; } return string(buffer); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { if (value == 0) { return "0x00"; } uint256 temp = value; uint256 length = 0; while (temp != 0) { length++; temp >>= 8; } return toHexString(value, length); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _HEX_SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) pragma solidity ^0.8.0; /** * @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); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "./interfaces/IVaultMetaProvider.sol"; contract VaultMetaProvider { string public _tokenURI; constructor (string memory tokenURI) { _tokenURI = tokenURI; } function getTokenURI(address vault_address, uint256 tokenId) public view returns (string memory) { return _tokenURI; } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Burnable.sol) pragma solidity ^0.8.0; import "../ERC721.sol"; import "../../../utils/Context.sol"; /** * @title ERC721 Burnable Token * @dev ERC721 Token that can be irreversibly burned (destroyed). */ abstract contract ERC721Burnable is Context, ERC721 { /** * @dev Burns `tokenId`. See {ERC721-_burn}. * * Requirements: * * - The caller must own `tokenId` or be an approved operator. */ function burn(uint256 tokenId) public virtual { //solhint-disable-next-line max-line-length require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721Burnable: caller is not owner nor approved"); _burn(tokenId); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol) pragma solidity ^0.8.0; import "../ERC20.sol"; import "../../../utils/Context.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 { /** * @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 { _spendAllowance(account, _msgSender(), amount); _burn(account, amount); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; contract VETO is ERC20, ERC20Burnable, Ownable { constructor() ERC20("VETO", "VETO") {} function mint(address to, uint256 amount) public onlyOwner { _mint(to, amount); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; //do not use on mainnet contract CustomERC20 is ERC20, ERC20Burnable, Ownable { uint8 private _decimals; constructor(string memory name, string memory symbol) ERC20(name, symbol) { _decimals = 18; } function mint(address to, uint256 amount) public onlyOwner { _mint(to, amount); } // do not use on mainnet function setDecimals(uint8 decimals_) public onlyOwner { _decimals = decimals_; } function decimals() public view virtual override returns (uint8) { return _decimals; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "./USDV.sol"; import "./interfaces/IPriceSource.sol"; import "./interfaces/IVault.sol"; /** * @title Stablecoin * @dev Stablecoin backed by native token as a collateral, and can only be minted with this collateral backing it. * Tokens will be minted when users deposit native token in vaults and in turn receive a loan against that collateral. */ contract Stablecoin is ReentrancyGuard { IPriceSource public ethPriceSource; uint256 private _minimumCollateralPercentage; IVault public erc721; USDV public usdv; uint256 public vaultCount; uint256 public debtCeiling; uint256 public closingFee; uint256 public treasury; uint256 public tokenPeg; mapping(uint256 => bool) public vaultExistence; mapping(uint256 => address) public vaultOwner; mapping(uint256 => uint256) public vaultCollateral; mapping(uint256 => uint256) public vaultDebt; address public stabilityPool; event CreateVault(uint256 vaultID, address creator); event DestroyVault(uint256 vaultID); event TransferVault(uint256 vaultID, address from, address to); event DepositCollateral(uint256 vaultID, uint256 amount); event WithdrawCollateral(uint256 vaultID, uint256 amount); event BorrowToken(uint256 vaultID, uint256 amount); event PayBackToken(uint256 vaultID, uint256 amount, uint256 closingFee); event BuyRiskyVault(uint256 vaultID, address owner, address buyer, uint256 amountPaid); /** * @dev Initializes the contract. * * NOTE: Vaults should be overcollateralized (> 100%), * to ensure that there is always collateral value to back the stablecoins minted * * @param ethPriceSourceAddress Price oracle of native token * @param minimumCollateralPercentage Collateral percentage * @param vaultAddress Address of non-fungible token, which ensures uniqueness for each vault */ constructor( address ethPriceSourceAddress, uint256 minimumCollateralPercentage, address vaultAddress, address usdvAddress ) { require(ethPriceSourceAddress != address(0)); require(minimumCollateralPercentage != 0); debtCeiling = 100000 * 10**18; // 100 000 USDV closingFee = 50; // 0.5% ethPriceSource = IPriceSource(ethPriceSourceAddress); stabilityPool=address(0); // liquidator contract tokenPeg = 100000000; // $1 erc721 = IVault(vaultAddress); usdv = USDV(usdvAddress); _minimumCollateralPercentage = minimumCollateralPercentage; } modifier onlyVaultOwner(uint256 vaultID) { require(vaultExistence[vaultID], "Vault does not exist"); require(vaultOwner[vaultID] == msg.sender, "Vault is not owned by you"); _; } /** * @dev Returns the maximum amount of minted token. * The goal of the debt ceiling is to prevent a large amount of token from flooding the market * that could negatively affect its price * @return debtCeiling */ function getDebtCeiling() external view returns (uint256){ return debtCeiling; } /** * @dev Returns the total value of locked tokens in USDV. * NOTE: minted tokens outside the logic of the contract will not be taken into account in the calculation */ function getTVL() external view returns (uint256){ return usdv.supplyMap(address(this)) * _minimumCollateralPercentage / 100; } /** * @dev Returns closingFee. * Users pay closingFee (by default 0.5%) when repaying their stablecoin debt to unlock the underlying collateral. * This fee is denominated in the collateral token. * @return closingFee */ function getClosingFee() external view returns (uint256){ return closingFee; } /** * @dev Returns tokenPeg * * @return tokenPeg */ function getTokenPriceSource() public view returns (uint256){ return tokenPeg; } /** * @dev Returns price of native token returned by priceOracle with address ethPriceSource. * * @return price */ function getEthPriceSource() public view returns (uint256){ (,int price,,,) = ethPriceSource.latestRoundData(); return uint256(price); } /** * @dev Calculates the value of collateral times 100 and debt. * @return collateralValueTimes100 * @return debtValue */ function calculateCollateralProperties(uint256 collateral, uint256 debt) private view returns (uint256, uint256) { assert(getEthPriceSource() != 0); assert(getTokenPriceSource() != 0); uint256 collateralValue = collateral * getEthPriceSource(); assert(collateralValue >= collateral); uint256 debtValue = debt * getTokenPriceSource(); assert(debtValue >= debt); uint256 collateralValueTimes100 = collateralValue * 100; assert(collateralValueTimes100 > collateralValue); return (collateralValueTimes100, debtValue); } function isValidCollateral(uint256 collateral, uint256 debt) private view returns (bool) { (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(collateral, debt); uint256 collateralPercentage = collateralValueTimes100 / debtValue; return collateralPercentage >= _minimumCollateralPercentage; } /** * @dev Creates vault for a sender. Emits event CreateVault(id, msg.sender) * * NOTE: The amount of vaults created for a user is not limited. * * @return id Id of created vault */ function createVault() external returns (uint256) { uint256 id = vaultCount; vaultCount = vaultCount + 1; assert(vaultCount >= id); vaultExistence[id] = true; vaultOwner[id] = msg.sender; emit CreateVault(id, msg.sender); // mint erc721 (vaultId) erc721.mint(msg.sender,id); return id; } /** * @dev Destroys specified vault. Requires no loan for vault. Pays back the entire deposit, if any. * Emits event DestroyVault(vaultID) * * Requirements: * * - There is no outstanding debt. * - The vault must exist * - The caller is owner of the vault * * @param vaultID Id of vault to destroy */ function destroyVault(uint256 vaultID) external onlyVaultOwner(vaultID) nonReentrant { require(vaultDebt[vaultID] == 0, "Vault has outstanding debt"); if(vaultCollateral[vaultID]!=0) { payable(msg.sender).transfer(vaultCollateral[vaultID]); } // burn erc721 (vaultId) erc721.burn(vaultID); delete vaultExistence[vaultID]; delete vaultOwner[vaultID]; delete vaultCollateral[vaultID]; delete vaultDebt[vaultID]; emit DestroyVault(vaultID); } /** * @dev Transfers vault to specified address. * * Requirements: * * - The vault must exist * - The caller is owner of the vault * * @param vaultID Id of the vault * @param to Recipient address */ function transferVault(uint256 vaultID, address to) external onlyVaultOwner(vaultID) { vaultOwner[vaultID] = to; // burn erc721 (vaultId) erc721.burn(vaultID); // mint erc721 (vaultId) erc721.mint(to,vaultID); emit TransferVault(vaultID, msg.sender, to); } /** * @dev Deposit native token (i.e. ETH) as a collateral to specified 'vaultID'. * * NOTE: There isn`t check whether amount of deposited collateral > 0 * * Requirements: * * - The vault must exist * - The caller is owner of vault * * @param vaultID Id of vault */ function depositCollateral(uint256 vaultID) external payable onlyVaultOwner(vaultID) { uint256 newCollateral = vaultCollateral[vaultID] + msg.value; assert(newCollateral >= vaultCollateral[vaultID]); vaultCollateral[vaultID] = newCollateral; emit DepositCollateral(vaultID, msg.value); } /** * @dev Withdraw collaterals from 'vaultID'. * * Requirements: * * - Withdrawal would not put vault below minimum colateral percentage * - The vault must exist * - The caller is owner of vault * * @param vaultID Id of vault * @param amount Withdrawal amount */ function withdrawCollateral(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) nonReentrant { require(vaultCollateral[vaultID] >= amount, "Vault does not have enough collateral"); uint256 newCollateral = vaultCollateral[vaultID] - amount; if(vaultDebt[vaultID] != 0) { require(isValidCollateral(newCollateral, vaultDebt[vaultID]), "Withdrawal would put vault below minimum collateral percentage"); } vaultCollateral[vaultID] = newCollateral; payable(msg.sender).transfer(amount); emit WithdrawCollateral(vaultID, amount); } /** * @dev Borrows specified amount of tokens * * NOTE: collateral must be deposited first. * * Requirements: * * - Borrowing would not put vault below minimum colateral percentage * - Tokens amount must not exceed debtCeiling limit * - New value of total supply must be less than debtCeiling limit * - The vault must exist * - The caller is owner of vault * * @param vaultID Id of vault * @param amount Amount of tokens to borrow */ function borrowToken(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) { require(amount > 0, "Must borrow non-zero amount"); require(usdv.supplyMap(address(this)) + amount <= debtCeiling, "borrowToken: Cannot mint over debtCeiling."); uint256 newDebt = vaultDebt[vaultID] + amount; assert(newDebt > vaultDebt[vaultID]); require(isValidCollateral(vaultCollateral[vaultID], newDebt), "Borrow would put vault below minimum collateral percentage"); vaultDebt[vaultID] = newDebt; usdv.mint(msg.sender, amount); emit BorrowToken(vaultID, amount); } /** * @dev Pays back specified amount of borrowed tokens * * Requirements: * * - The vault must have debt * - The vault must exist * - The caller is owner of the vault * * @param vaultID Id of vault * @param amount Amount of tokens to pay back */ function payBackToken(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) { require(usdv.balanceOf(msg.sender) >= amount, "Token balance too low"); require(vaultDebt[vaultID] >= amount, "Vault debt less than amount to pay back"); uint256 _closingFee = amount * closingFee * getTokenPriceSource() / (getEthPriceSource() * 10000); vaultDebt[vaultID] = vaultDebt[vaultID] - amount; vaultCollateral[vaultID] = vaultCollateral[vaultID] - _closingFee; vaultCollateral[treasury] = vaultCollateral[treasury] + _closingFee; usdv.burn(msg.sender, amount); emit PayBackToken(vaultID, amount, _closingFee); } /** * @dev Pays back the debt of a depreciated vault * and then transfers vault`s ownership to caller * * Requirements: * * - The vault`s collateral-to-debt ratio is below the minimum percentage * - The vault must have debt * - The vault must exist * - The caller is owner of the vault * * @param vaultID Id of vault */ function buyRiskyVault(uint256 vaultID) external { require(vaultExistence[vaultID], "Vault does not exist"); require(stabilityPool==address(0) || msg.sender == stabilityPool, "buyRiskyVault disabled for public"); (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]); uint256 collateralPercentage = collateralValueTimes100 / debtValue; require(collateralPercentage < _minimumCollateralPercentage, "Vault is not below minimum collateral percentage"); uint256 maximumDebtValue = collateralValueTimes100 / _minimumCollateralPercentage; uint256 maximumDebt = maximumDebtValue / getTokenPriceSource(); uint256 debtDifference = vaultDebt[vaultID] - maximumDebt; require(usdv.balanceOf(msg.sender) >= debtDifference, "Token balance too low to pay off outstanding debt"); address previousOwner = vaultOwner[vaultID]; vaultOwner[vaultID] = msg.sender; vaultDebt[vaultID] = maximumDebt; uint256 _closingFee = debtDifference * closingFee * getTokenPriceSource() / (getEthPriceSource() * 10000); vaultCollateral[vaultID]=vaultCollateral[vaultID] -_closingFee; vaultCollateral[treasury]=vaultCollateral[treasury] + _closingFee; usdv.burn(msg.sender, debtDifference); // burn erc721 (vaultId) erc721.burn(vaultID); // mint erc721 (vaultId) erc721.mint(msg.sender,vaultID); emit BuyRiskyVault(vaultID, previousOwner, msg.sender, debtDifference); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; contract USDV is ERC20, AccessControl { bytes32 public constant MINT_BURN_ROLE = keccak256("MINT_BURN_ROLE"); mapping(address => uint256) public supplyMap; constructor() ERC20("TEST_USDV", "TEST_USDV") { _grantRole(DEFAULT_ADMIN_ROLE, msg.sender); _grantRole(MINT_BURN_ROLE, msg.sender); } function mint(address to, uint256 amount) external onlyRole(MINT_BURN_ROLE) { _mint(to, amount); supplyMap[msg.sender] += amount; } function burn(address account, uint256 amount) external onlyRole(MINT_BURN_ROLE) { _burn(account, amount); supplyMap[msg.sender] -= amount; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface IPriceSource { function latestRoundData() external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound); function decimals() external view returns (uint8); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; interface IVault { function burn(uint256 tokenId) external; function mint(address to, uint256 tokenId) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * 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, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role, _msgSender()); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(uint160(account), 20), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @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 virtual override 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 override onlyRole(getRoleAdmin(role)) { _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 override onlyRole(getRoleAdmin(role)) { _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 revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) public virtual override { 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}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ 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 { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @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 {AccessControl-_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) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @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) external; /** * @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) external; /** * @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) external; }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "../interfaces/IPriceSource.sol"; contract PriceSourceStub is IPriceSource{ uint80 _roundId = 0; int256 _answer = 500 * 10**8; uint256 _startedAt = 0; uint256 _updatedAt = 0; uint80 _answeredInRound = 0; function latestRoundData() external view override returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound) { return (_roundId,_answer,_startedAt,_updatedAt,_answeredInRound); } function setRoundData(uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound) public { _roundId = roundId; _answer = answer; _startedAt = startedAt; _updatedAt = updatedAt; _answeredInRound = answeredInRound; } function decimals() external pure override returns (uint8) { return 8; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol"; import "./interfaces/IPriceSource.sol"; contract PriceConsumerV3 is IPriceSource { AggregatorV3Interface public priceFeed; string public name; constructor(address aggregator, string memory name_) { priceFeed = AggregatorV3Interface(aggregator); name = name_; } function latestRoundData() external view override returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound) { return priceFeed.latestRoundData(); } function decimals() external pure override returns (uint8) { return 8; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface AggregatorV3Interface { function decimals() external view returns (uint8); function description() external view returns (string memory); function version() external view returns (uint256); // getRoundData and latestRoundData should both raise "No data present" // if they do not have data to report, instead of returning unset values // which could be misinterpreted as actual reported values. function getRoundData(uint80 _roundId) external view returns ( uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound ); function latestRoundData() external view returns ( uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound ); }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "hardhat/console.sol"; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import "../interfaces/IPriceSource.sol"; import "../USDV.sol"; import "../VaultNFTv3.sol"; contract ERC20Stablecoin is ReentrancyGuard, VaultNFTv3 { IPriceSource public ethPriceSource; using SafeERC20 for ERC20; using SafeERC20 for USDV; uint256 public _minimumCollateralPercentage; uint256 public vaultCount; uint256 public closingFee; uint256 public treasury; uint256 public tokenPeg; mapping(uint256 => uint256) public vaultCollateral; mapping(uint256 => uint256) public vaultDebt; uint256 public debtRatio; uint256 public gainRatio; uint256 public debtCeiling; address public stabilityPool; ERC20 public collateral; USDV public usdv; uint8 public priceSourceDecimals; event CreateVault(uint256 vaultID, address creator); event DestroyVault(uint256 vaultID); event TransferVault(uint256 vaultID, address from, address to); event DepositCollateral(uint256 vaultID, uint256 amount); event WithdrawCollateral(uint256 vaultID, uint256 amount); event BorrowToken(uint256 vaultID, uint256 amount); event PayBackToken(uint256 vaultID, uint256 amount, uint256 closingFee); event LiquidateVault(uint256 vaultID, address owner, address buyer, uint256 debtRepaid, uint256 collateralLiquidated, uint256 closingFee); mapping(address => uint256) public liquidationDebt; constructor( address ethPriceSourceAddress, uint256 minimumCollateralPercentage, string memory name, string memory symbol, address _stablecoin, address _collateral, address meta, string memory baseURI ) VaultNFTv3(name, symbol, meta, baseURI) { require(ethPriceSourceAddress != address(0)); require(minimumCollateralPercentage != 0); debtCeiling = 100000 * 10**18; // 100 000 USDV closingFee = 50; // 0.5% ethPriceSource = IPriceSource(ethPriceSourceAddress); stabilityPool = address(0); tokenPeg = 100000000; // $1 debtRatio = 2; // 1/2, pay back 50% gainRatio = 1100;// /10 so 1.1 _minimumCollateralPercentage = minimumCollateralPercentage; collateral = ERC20(_collateral); usdv = USDV(_stablecoin); priceSourceDecimals = ethPriceSource.decimals(); } modifier onlyVaultOwner(uint256 vaultID) { require(_exists(vaultID), "Vault does not exist"); require(ownerOf(vaultID) == msg.sender, "Vault is not owned by you"); _; } /** * @dev Returns the maximum amount of minted token. * The goal of the debt ceiling is to prevent a large amount of token from flooding the market * that could negatively affect its price * @return debtCeiling */ function getDebtCeiling() external view returns (uint256){ return debtCeiling; } /** * @dev Returns the total value of locked tokens in USDV. * NOTE: minted tokens outside the logic of the contract will not be taken into account in the calculation */ function getTVL() external view returns (uint256){ return usdv.supplyMap(address(this)) * _minimumCollateralPercentage / 100; } function exists(uint256 vaultID) external view returns (bool){ return _exists(vaultID); } /** * @dev Returns closingFee. * Users pay closingFee (by default 0.5%) when repaying their debt to unlock the underlying collateral. * This fee is denominated in the collateral token. * @return closingFee */ function getClosingFee() external view returns (uint256){ return closingFee; } function getTokenPriceSource() public view returns (uint256){ return tokenPeg; } function getEthPriceSource() public view returns (uint256){ (,int256 price,,,) = ethPriceSource.latestRoundData(); return uint256(price); } function calculateCollateralProperties(uint256 _collateral, uint256 _debt) private view returns (uint256, uint256) { assert(getEthPriceSource() != 0); assert(getTokenPriceSource() != 0); uint256 collateralValue = _collateral * getEthPriceSource() * 10**(uint256(usdv.decimals()) - uint256(collateral.decimals())); assert(collateralValue >= _collateral); uint256 debtValue = _debt * getTokenPriceSource(); assert(debtValue >= _debt); uint256 collateralValueTimes100 = collateralValue * 100; assert(collateralValueTimes100 > collateralValue); return (collateralValueTimes100, debtValue); } function isValidCollateral(uint256 _collateral, uint256 debt) private view returns (bool) { (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(_collateral, debt); uint256 collateralPercentage = collateralValueTimes100 / debtValue; return collateralPercentage >= _minimumCollateralPercentage; } /** * @dev Creates vault for a sender. Emits event CreateVault(id, msg.sender) * * NOTE: The amount of vaults created for a user is not limited. * * @return id Id of created vault */ function createVault() external returns (uint256) { uint256 id = vaultCount; vaultCount = vaultCount + 1; assert(vaultCount >= id); _mint(msg.sender,id); emit CreateVault(id, msg.sender); return id; } /** * @dev Destroys specified vault. Requires no loan for vault. Pays back the entire deposit, if any. * Emits event DestroyVault(vaultID) * * Requirements: * * - There is no outstanding debt. * - The vault must exist * - The caller is owner of the vault * * @param vaultID Id of vault to destroy */ function destroyVault(uint256 vaultID) external onlyVaultOwner(vaultID) nonReentrant { require(vaultDebt[vaultID] == 0, "Vault has outstanding debt"); if(vaultCollateral[vaultID]!=0) { // withdraw leftover collateral collateral.safeTransfer(ownerOf(vaultID), vaultCollateral[vaultID]); } _burn(vaultID); delete vaultCollateral[vaultID]; delete vaultDebt[vaultID]; emit DestroyVault(vaultID); } /** * @dev Deposit erc20 collateral to specified 'vaultID'. * * NOTE: There isn`t check whether amount of deposited collateral > 0 * * Requirements: * * - The vault must exist * - The caller is owner of vault * * @param vaultID Id of the vault * @param amount Collateral amount */ function depositCollateral(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) nonReentrant { collateral.safeTransferFrom(msg.sender, address(this), amount); uint256 newCollateral = vaultCollateral[vaultID] + amount; assert(newCollateral >= vaultCollateral[vaultID]); vaultCollateral[vaultID] = newCollateral; emit DepositCollateral(vaultID, amount); } /** * @dev Withdraw collaterals from 'vaultID'. * * Requirements: * * - Withdrawal would not put vault below minimum colateral percentage * - The vault must exist * - The caller is owner of vault * * @param vaultID Id of vault * @param amount Withdrawal amount */ function withdrawCollateral(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) nonReentrant { require(vaultCollateral[vaultID] >= amount, "Vault does not have enough collateral"); uint256 newCollateral = vaultCollateral[vaultID] - amount; if(vaultDebt[vaultID] != 0) { require(isValidCollateral(newCollateral, vaultDebt[vaultID]), "Withdrawal would put vault below minimum collateral percentage"); } vaultCollateral[vaultID] = newCollateral; collateral.safeTransfer(msg.sender, amount); emit WithdrawCollateral(vaultID, amount); } /** * @dev Borrows specified amount of tokens * * NOTE: collateral must be deposited first. * * Requirements: * * - Borrowing would not put vault below minimum colateral percentage * - Tokens amount must not exceed debtCeiling limit * - New value of total supply must be less than debtCeiling limit * - The vault must exist * - The caller is owner of vault * * @param vaultID Id of vault * @param amount Amount of tokens to borrow */ function borrowToken(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) nonReentrant { require(amount > 0, "Must borrow non-zero amount"); require(usdv.supplyMap(address(this)) + amount <= debtCeiling, "borrowToken: Cannot mint over debtCeiling."); uint256 newDebt = vaultDebt[vaultID] + amount; assert(newDebt > vaultDebt[vaultID]); require(isValidCollateral(vaultCollateral[vaultID], newDebt), "Borrow would put vault below minimum collateral percentage"); vaultDebt[vaultID] = newDebt; usdv.mint(msg.sender, amount); emit BorrowToken(vaultID, amount); } /** * @dev Pays back specified amount of borrowed tokens * * Requirements: * * - The vault must have debt * - The vault must exist * - The caller is owner of the vault * * @param vaultID Id of vault * @param amount Amount of tokens to pay back */ function payBackToken(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) nonReentrant { require(usdv.balanceOf(msg.sender) >= amount, "Token balance too low"); require(vaultDebt[vaultID] >= amount, "Vault debt less than amount to pay back"); uint256 _closingFee = amount * closingFee * getTokenPriceSource() / (getEthPriceSource() * 10000); usdv.burn(msg.sender, amount); vaultDebt[vaultID] = vaultDebt[vaultID] - amount; vaultCollateral[vaultID]=vaultCollateral[vaultID] - _closingFee; vaultCollateral[treasury]=vaultCollateral[treasury] + _closingFee; emit PayBackToken(vaultID, amount, _closingFee); } /** * @dev Withdraws all liquidation profits */ function getPaid() public nonReentrant { require(liquidationDebt[msg.sender]!=0, "Don't have anything for you."); uint256 amount = liquidationDebt[msg.sender]; liquidationDebt[msg.sender]=0; collateral.safeTransfer(msg.sender, amount); } /** * @dev Calculates the amount of debt would be paid off on liquidation * * @param vaultID Id of the vault * @return uint256 Collateral extraction */ function checkCost(uint256 vaultID) public view returns (uint256) { if(vaultCollateral[vaultID] == 0 || vaultDebt[vaultID]==0 || !checkLiquidation(vaultID) ){ return 0; } (, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]); if(debtValue==0){ return 0; } debtValue = debtValue / (10 ** priceSourceDecimals); uint256 halfDebt = debtValue / debtRatio; //debtRatio (2) return(halfDebt); } /** * @dev Calculates the collateral extraction on liquidation. * * @param vaultID Id of the vault * @return uint256 Collateral extraction */ function checkExtract(uint256 vaultID) public view returns (uint256) { if(vaultCollateral[vaultID] == 0|| !checkLiquidation(vaultID) ) { return 0; } (, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]); uint256 halfDebt = debtValue / debtRatio; //debtRatio (2) if(halfDebt==0){ return 0; } return halfDebt * gainRatio / (1000 * getEthPriceSource()); } /** * @dev Calculates collateral percentage. * * @param vaultID Id of the vault to process * @return uint256 Collateral percentage */ function checkCollateralPercentage(uint256 vaultID) public view returns(uint256){ require(_exists(vaultID), "Vault does not exist"); if(vaultCollateral[vaultID] == 0 || vaultDebt[vaultID]==0){ return 0; } (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]); return collateralValueTimes100 / debtValue; } /** * @dev Checks if liquidation can be applied * * @param vaultID Id of the vault */ function checkLiquidation(uint256 vaultID) public view returns (bool) { require(_exists(vaultID), "Vault does not exist"); if(vaultCollateral[vaultID] == 0 || vaultDebt[vaultID]==0){ return false; } (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]); uint256 collateralPercentage = collateralValueTimes100 / debtValue; if(collateralPercentage < _minimumCollateralPercentage){ return true; } else{ return false; } } /** * @dev Partially liquidates the vault. Gives some profit for caller which depends on 'gainRatio'. * The liquidation percentage depends on 'debtRatio'. * * NOTE: Caller must give an approval to trasfer his tokens of stablecoin * * Requirements: * * - The vault`s collateral-to-debt ratio is below the minimum percentage * - The vault must have debt * - The vault must exist * * @param vaultID Id of the vault to liquidate */ function liquidateVault(uint256 vaultID) external { require(_exists(vaultID), "Vault does not exist"); require(stabilityPool==address(0) || msg.sender == stabilityPool, "liquidation is disabled for public"); (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]); uint256 collateralPercentage = collateralValueTimes100 / debtValue; require(collateralPercentage < _minimumCollateralPercentage, "Vault is not below minimum collateral percentage"); debtValue = debtValue / (10 ** priceSourceDecimals); uint256 halfDebt = debtValue / debtRatio; //debtRatio (2) require(usdv.balanceOf(msg.sender) >= halfDebt, "Token balance too low to pay off outstanding debt"); usdv.burn(msg.sender, halfDebt); uint256 liquidationExtract = checkExtract(vaultID); vaultDebt[vaultID] = vaultDebt[vaultID] - halfDebt; // we paid back half of its debt. uint256 _closingFee = halfDebt * closingFee * getTokenPriceSource() / (getEthPriceSource() * 10000); vaultCollateral[vaultID]=vaultCollateral[vaultID] - _closingFee; vaultCollateral[treasury]=vaultCollateral[treasury] + _closingFee; // deduct the amount from the vault's collateral vaultCollateral[vaultID] = vaultCollateral[vaultID] - liquidationExtract; // let liquidator take the collateral liquidationDebt[msg.sender] = liquidationDebt[msg.sender] + liquidationExtract; emit LiquidateVault(vaultID, ownerOf(vaultID), msg.sender, halfDebt, liquidationExtract, _closingFee); } }
// SPDX-License-Identifier: MIT pragma solidity >= 0.4.22 <0.9.0; library console { address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67); function _sendLogPayload(bytes memory payload) private view { uint256 payloadLength = payload.length; address consoleAddress = CONSOLE_ADDRESS; assembly { let payloadStart := add(payload, 32) let r := staticcall(gas(), consoleAddress, payloadStart, payloadLength, 0, 0) } } function log() internal view { _sendLogPayload(abi.encodeWithSignature("log()")); } function logInt(int p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(int)", p0)); } function logUint(uint p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); } function logString(string memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); } function logBool(bool p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); } function logAddress(address p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); } function logBytes(bytes memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0)); } function logBytes1(bytes1 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0)); } function logBytes2(bytes2 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0)); } function logBytes3(bytes3 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0)); } function logBytes4(bytes4 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0)); } function logBytes5(bytes5 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0)); } function logBytes6(bytes6 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0)); } function logBytes7(bytes7 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0)); } function logBytes8(bytes8 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0)); } function logBytes9(bytes9 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0)); } function logBytes10(bytes10 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0)); } function logBytes11(bytes11 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0)); } function logBytes12(bytes12 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0)); } function logBytes13(bytes13 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0)); } function logBytes14(bytes14 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0)); } function logBytes15(bytes15 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0)); } function logBytes16(bytes16 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0)); } function logBytes17(bytes17 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0)); } function logBytes18(bytes18 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0)); } function logBytes19(bytes19 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0)); } function logBytes20(bytes20 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0)); } function logBytes21(bytes21 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0)); } function logBytes22(bytes22 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0)); } function logBytes23(bytes23 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0)); } function logBytes24(bytes24 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0)); } function logBytes25(bytes25 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0)); } function logBytes26(bytes26 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0)); } function logBytes27(bytes27 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0)); } function logBytes28(bytes28 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0)); } function logBytes29(bytes29 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0)); } function logBytes30(bytes30 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0)); } function logBytes31(bytes31 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0)); } function logBytes32(bytes32 p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0)); } function log(uint p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); } function log(string memory p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); } function log(bool p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); } function log(address p0) internal view { _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); } function log(uint p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint)", p0, p1)); } function log(uint p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string)", p0, p1)); } function log(uint p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool)", p0, p1)); } function log(uint p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address)", p0, p1)); } function log(string memory p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint)", p0, p1)); } function log(string memory p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1)); } function log(string memory p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1)); } function log(string memory p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1)); } function log(bool p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint)", p0, p1)); } function log(bool p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1)); } function log(bool p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1)); } function log(bool p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1)); } function log(address p0, uint p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint)", p0, p1)); } function log(address p0, string memory p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1)); } function log(address p0, bool p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1)); } function log(address p0, address p1) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1)); } function log(uint p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint)", p0, p1, p2)); } function log(uint p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string)", p0, p1, p2)); } function log(uint p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool)", p0, p1, p2)); } function log(uint p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address)", p0, p1, p2)); } function log(uint p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint)", p0, p1, p2)); } function log(uint p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string)", p0, p1, p2)); } function log(uint p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool)", p0, p1, p2)); } function log(uint p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address)", p0, p1, p2)); } function log(uint p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint)", p0, p1, p2)); } function log(uint p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string)", p0, p1, p2)); } function log(uint p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool)", p0, p1, p2)); } function log(uint p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address)", p0, p1, p2)); } function log(uint p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint)", p0, p1, p2)); } function log(uint p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string)", p0, p1, p2)); } function log(uint p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool)", p0, p1, p2)); } function log(uint p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address)", p0, p1, p2)); } function log(string memory p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint)", p0, p1, p2)); } function log(string memory p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string)", p0, p1, p2)); } function log(string memory p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool)", p0, p1, p2)); } function log(string memory p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address)", p0, p1, p2)); } function log(string memory p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint)", p0, p1, p2)); } function log(string memory p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2)); } function log(string memory p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2)); } function log(string memory p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2)); } function log(string memory p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint)", p0, p1, p2)); } function log(string memory p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2)); } function log(string memory p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2)); } function log(string memory p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2)); } function log(string memory p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint)", p0, p1, p2)); } function log(string memory p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2)); } function log(string memory p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2)); } function log(string memory p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2)); } function log(bool p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint)", p0, p1, p2)); } function log(bool p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string)", p0, p1, p2)); } function log(bool p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool)", p0, p1, p2)); } function log(bool p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address)", p0, p1, p2)); } function log(bool p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint)", p0, p1, p2)); } function log(bool p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2)); } function log(bool p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2)); } function log(bool p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2)); } function log(bool p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint)", p0, p1, p2)); } function log(bool p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2)); } function log(bool p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2)); } function log(bool p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2)); } function log(bool p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint)", p0, p1, p2)); } function log(bool p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2)); } function log(bool p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2)); } function log(bool p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2)); } function log(address p0, uint p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint)", p0, p1, p2)); } function log(address p0, uint p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string)", p0, p1, p2)); } function log(address p0, uint p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool)", p0, p1, p2)); } function log(address p0, uint p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address)", p0, p1, p2)); } function log(address p0, string memory p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint)", p0, p1, p2)); } function log(address p0, string memory p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2)); } function log(address p0, string memory p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2)); } function log(address p0, string memory p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2)); } function log(address p0, bool p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint)", p0, p1, p2)); } function log(address p0, bool p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2)); } function log(address p0, bool p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2)); } function log(address p0, bool p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2)); } function log(address p0, address p1, uint p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint)", p0, p1, p2)); } function log(address p0, address p1, string memory p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2)); } function log(address p0, address p1, bool p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2)); } function log(address p0, address p1, address p2) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2)); } function log(uint p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,address)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,uint)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,string)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,bool)", p0, p1, p2, p3)); } function log(uint p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,address)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,uint)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,string)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,bool)", p0, p1, p2, p3)); } function log(uint p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,address)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,uint)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,string)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,bool)", p0, p1, p2, p3)); } function log(uint p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,address)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,uint)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,string)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,bool)", p0, p1, p2, p3)); } function log(uint p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,string)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3)); } function log(string memory p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,address)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,uint)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,string)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,bool)", p0, p1, p2, p3)); } function log(bool p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3)); } function log(bool p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3)); } function log(bool p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3)); } function log(bool p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,address)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,uint)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,string)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,bool)", p0, p1, p2, p3)); } function log(address p0, uint p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3)); } function log(address p0, string memory p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3)); } function log(address p0, bool p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,string)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, uint p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,address)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, string memory p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, bool p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, uint p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, string memory p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, bool p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3)); } function log(address p0, address p1, address p2, address p3) internal view { _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../../../utils/Address.sol"; /** * @title SafeERC20 * @dev Wrappers around ERC20 operations that throw on failure (when the token * contract returns false). Tokens that return no value (and instead revert or * throw on failure) are also supported, non-reverting calls are assumed to be * successful. * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. */ library SafeERC20 { using Address for address; function safeTransfer( IERC20 token, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } function safeTransferFrom( IERC20 token, address from, address to, uint256 value ) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); } /** * @dev Deprecated. This function has issues similar to the ones found in * {IERC20-approve}, and its usage is discouraged. * * Whenever possible, use {safeIncreaseAllowance} and * {safeDecreaseAllowance} instead. */ function safeApprove( IERC20 token, address spender, uint256 value ) internal { // safeApprove should only be called when setting an initial allowance, // or when resetting it to zero. To increase and decrease it, use // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' require( (value == 0) || (token.allowance(address(this), spender) == 0), "SafeERC20: approve from non-zero to non-zero allowance" ); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); } function safeIncreaseAllowance( IERC20 token, address spender, uint256 value ) internal { uint256 newAllowance = token.allowance(address(this), spender) + value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } function safeDecreaseAllowance( IERC20 token, address spender, uint256 value ) internal { unchecked { uint256 oldAllowance = token.allowance(address(this), spender); require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); uint256 newAllowance = oldAllowance - value; _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); } } /** * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement * on the return value: the return value is optional (but if data is returned, it must not be false). * @param token The token targeted by the call. * @param data The call data (encoded using abi.encode or one of its variants). */ function _callOptionalReturn(IERC20 token, bytes memory data) private { // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that // the target address contains contract code and also asserts for success in the low-level call. bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); if (returndata.length > 0) { // Return data is optional require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); } } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/access/Ownable.sol"; import "./ERC20Stablecoin.sol"; contract ERC20StablecoinEnhanced is ERC20Stablecoin, Ownable { constructor( address ethPriceSourceAddress, uint256 minimumCollateralPercentage, string memory name, string memory symbol, address _stablecoin, address _collateral, address meta, string memory baseURI ) ERC20Stablecoin( ethPriceSourceAddress, minimumCollateralPercentage, name, symbol, _stablecoin, _collateral, meta, baseURI ) { treasury=0; } function setGainRatio(uint256 _gainRatio) external onlyOwner() { gainRatio=_gainRatio; } function setDebtRatio(uint256 _debtRatio) external onlyOwner() { debtRatio=_debtRatio; } // management function function transferToken(address to, address token, uint256 amountToken) external onlyOwner() { ERC20(token).transfer(to, amountToken); } function changeEthPriceSource(address ethPriceSourceAddress) external onlyOwner() { ethPriceSource = IPriceSource(ethPriceSourceAddress); } function setTokenPeg(uint256 _tokenPeg) external onlyOwner() { tokenPeg = _tokenPeg; } function setStabilityPool(address _pool) external onlyOwner() { stabilityPool = _pool; } function setDebtCeiling(uint256 amount) external onlyOwner() { require(usdv.supplyMap(address(this)) <= debtCeiling, "setDebtCeiling: Must be over the amount of outstanding debt."); debtCeiling = amount; } function setMinCollateralRatio(uint256 minimumCollateralPercentage) external onlyOwner() { _minimumCollateralPercentage = minimumCollateralPercentage; } function setClosingFee(uint256 amount) external onlyOwner() { closingFee = amount; } function setTreasury(uint256 _treasury) external onlyOwner() { require(_exists(_treasury), "Vault does not exist"); treasury = _treasury; } function setBaseURI(string memory baseURI) public onlyOwner() { base = baseURI; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "./Stablecoin.sol"; import "./USDV.sol"; /** * @title Liquidator * @dev Implementation of partial liquidations for Stablecoin. * If user`s vault falls below the liquidation ratio, he will only lose part of his collateral. * He will still own his vault, and some of the debt will have been paid off. This will bring his vault above the * liquidation ratio and thus make it no longer risky. * * NOTE: Vaults can undergo partial liquidation multiple times * if they continue to become risky. */ contract Liquidator is ReentrancyGuard, Ownable{ Stablecoin public vaultContract; USDV public usdv; uint256 public debtRatio; uint256 public gainRatio; uint256 private _minimumCollateralPercentage; mapping(address => uint256) public nativeTokenDebt; /** * @dev Initializes the contract. * * @param _vaultContract Stablecoin`s address */ constructor(address _vaultContract, address _usdv) { vaultContract = Stablecoin(_vaultContract); usdv = USDV(_usdv); debtRatio = 2; gainRatio = 11;// /10 so 1.1 _minimumCollateralPercentage = 130; } /** * @dev Sets gain ratio * * @param _gainRatio Gain ratio */ function setGainRatio(uint256 _gainRatio) onlyOwner() public { gainRatio=_gainRatio; } /** * @dev Sets debt ratio * * @param _debtRatio Debt ratio */ function setDebtRatio(uint256 _debtRatio) onlyOwner() public { debtRatio=_debtRatio; } function calculateCollateralProperties(uint256 collateral, uint256 debt) private view returns (uint256, uint256) { assert(vaultContract.getEthPriceSource() != 0); assert(vaultContract.getTokenPriceSource() != 0); uint256 collateralValue = collateral * vaultContract.getEthPriceSource(); assert(collateralValue >= collateral); uint256 debtValue = debt * vaultContract.getTokenPriceSource(); assert(debtValue >= debt); uint256 collateralValueTimes100 = collateralValue * 100; assert(collateralValueTimes100 > collateralValue); return (collateralValueTimes100, debtValue); } function isValidCollateral(uint256 collateral, uint256 debt) private view returns (bool) { (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(collateral, debt); uint256 collateralPercentage = collateralValueTimes100 / debtValue; return collateralPercentage >= _minimumCollateralPercentage; } /** * @dev Withdraws all liquidation profits */ function getPaid() public nonReentrant { require(nativeTokenDebt[msg.sender]!=0, "Don't have anything for you."); uint256 amount = nativeTokenDebt[msg.sender]; nativeTokenDebt[msg.sender]=0; payable(msg.sender).transfer(amount); } /** * @dev Checks if liquidation can be applied * * @param _vaultId Id of the vault */ function checkLiquidation (uint256 _vaultId) public view { (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultContract.vaultCollateral(_vaultId), vaultContract.vaultDebt(_vaultId) ); uint256 collateralPercentage = collateralValueTimes100 / debtValue; require(collateralPercentage < _minimumCollateralPercentage, "Vault is not below minimum collateral percentage"); } /** * @dev Calculates the amount of debt would be paid off on liquidation * * @param _vaultId Id of the vault * @return uint256 Collateral extraction */ function checkCost (uint256 _vaultId) public view returns(uint256) { (, uint256 debtValue) = calculateCollateralProperties(vaultContract.vaultCollateral(_vaultId), vaultContract.vaultDebt(_vaultId) ); debtValue = debtValue / 100000000; return debtValue / debtRatio; } /** * @dev Calculates the collateral extraction on liquidation. * * @param _vaultId Id of the vault * @return uint256 Collateral extraction */ function checkExtract (uint256 _vaultId) public view returns(uint256) { (, uint256 debtValue) = calculateCollateralProperties(vaultContract.vaultCollateral(_vaultId), vaultContract.vaultDebt(_vaultId) ); uint256 halfDebt = debtValue / debtRatio; uint256 collateralExtract = halfDebt * 11 / (10 * vaultContract.getEthPriceSource()); return collateralExtract; } /** * @dev Checks whether the vault`s collateral percentage would be valid after liquidation. * * @param _vaultId Id of the vault to check * @return bool Is valid collateral percentage */ function checkValid( uint256 _vaultId ) public view returns(bool, uint256, uint256, uint256) { (, uint256 ogDebtValue) = calculateCollateralProperties(vaultContract.vaultCollateral(_vaultId), vaultContract.vaultDebt(_vaultId) ); uint256 halfDebt = ogDebtValue / debtRatio; uint256 maticExtract = halfDebt * 11 / (10 * vaultContract.getEthPriceSource()); uint256 newCollateral = vaultContract.vaultCollateral(_vaultId) - maticExtract; halfDebt = halfDebt / 100000000; return (isValidCollateral(newCollateral, halfDebt), newCollateral, halfDebt, maticExtract); } /** * @dev Calculates collateral percentage. * * @param _vaultId Id of the vault to process * @return uint256 Collateral value times 100 * @return uint256 Debt value */ function checkCollat(uint256 _vaultId) public view returns(uint256, uint256) { return calculateCollateralProperties(vaultContract.vaultCollateral(_vaultId), vaultContract.vaultDebt(_vaultId) ); } /** * @dev Checks usdv balance of specified address. * * @param _address Address to view * @return balance */ function checkUSDVBalance(address _address) public view returns (uint256){ return usdv.balanceOf(_address); } /** * @dev Partially liquidates the vault. Gives some profit for caller which depends on 'gainRatio'. * The liquidation percentage depends on 'debtRatio'. * * NOTE: Caller must give an approval to trasfer his tokens of stablecoin * * Requirements: * * - The vault`s collateral-to-debt ratio is below the minimum percentage * - The vault must have debt * - The vault must exist * * @param _vaultId Id of the vault to liquidate */ function liquidateVault(uint256 _vaultId) public nonReentrant { uint256 ogBalance = usdv.balanceOf(address(this)); usdv.transfer(owner(), ogBalance); address ogOwner = vaultContract.vaultOwner(_vaultId); (uint256 collateralValueTimes100, uint256 ogDebtValue) = calculateCollateralProperties(vaultContract.vaultCollateral(_vaultId), vaultContract.vaultDebt(_vaultId) ); uint256 collateralPercentage = collateralValueTimes100 / ogDebtValue; uint256 collateralExtract = checkExtract ( _vaultId); require(collateralPercentage < _minimumCollateralPercentage, "Vault is not below minimum collateral percentage"); uint256 halfDebt = checkCost(_vaultId); usdv.transferFrom(msg.sender, address(this), halfDebt); vaultContract.buyRiskyVault(_vaultId); uint256 newBalance = usdv.balanceOf(address(this)); vaultContract.payBackToken(_vaultId, newBalance); vaultContract.withdrawCollateral(_vaultId, collateralExtract ); vaultContract.transferVault(_vaultId, ogOwner); nativeTokenDebt[msg.sender] = nativeTokenDebt[msg.sender] + collateralExtract; } receive() external payable {} }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/security/ReentrancyGuard.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; contract AnchorUSDVxUSDT is ReentrancyGuard, Ownable { ERC20 usdt; ERC20 usdv; uint256 public usdtRate; uint256 public usdvRate; uint256 private decimalsDifferenceTimes100; constructor(address _usdt, address _usdv) { usdt = ERC20(_usdt); usdv = ERC20(_usdv); usdvRate = 99; usdtRate = 101; decimalsDifferenceTimes100 = 10**(uint256(usdv.decimals()) - uint256(usdt.decimals())) * 100; } function setUSDTRatePerUSDV(uint256 _rate) onlyOwner() external { usdtRate = _rate; } function setUSDVRatePerUSDT(uint256 _rate) onlyOwner() external { usdvRate = _rate; } function transferToken(address token, uint256 amountToken) onlyOwner() external { IERC20(token).transfer(owner(), amountToken); } // this returns the reserves in the contract function getReserves() external view returns(uint256, uint256) { return ( usdv.balanceOf(address(this)), usdt.balanceOf(address(this)) ); } // the user must approve the balance so the contract can take it out of the user's account // else this will fail. function swapFrom(uint256 amount) external nonReentrant { require(amount!=0, "swapFrom: invalid amount"); require(usdv.balanceOf(address(this))!=0, "swapFrom: Not enough usdv in reserves"); // for every 1.01 usdt we get 1.00 usdv // 1 010 000 usdt we get 1 000 000 000 000 000 000 usdv uint256 amountToSend = amount * decimalsDifferenceTimes100 / usdtRate; require(usdv.balanceOf(address(this)) >= amountToSend, "swapFrom: Not enough usdv in reserves"); // Transfer USDT to contract usdt.transferFrom(msg.sender, address(this), amount); // Transfer usdv to sender usdv.transfer(msg.sender, amountToSend); } function swapTo(uint256 amount) external nonReentrant { require(amount!=0, "swapTo: invalid amount"); require(usdt.balanceOf(address(this))!=0, "swapTo: Not enough USDT in reserves"); // for every 1.00 usdv we get 0.99 usdt // 1 000 000 000 000 000 000 we get 980 000 (bc decimals) uint256 amountToSend = amount * usdvRate / decimalsDifferenceTimes100; require(usdt.balanceOf(address(this)) >= amountToSend, "swapTo: Not enough usdt in reserves"); // Tranfer tokens from sender to this contract usdv.transferFrom(msg.sender, address(this), amount); // Transfer amount minus fees to sender usdt.transfer(msg.sender, amountToSend); } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; // Sorbettiere is a "semifredo of popsicle stand" this contract is created to provide single side farm for IFO of Popsicle Finance. // The contract is based on famous Masterchef contract (Ty guys for that) // It intakes one token and allows the user to farm another token. Due to the crosschain nature of Popsicle Stand we've swapped reward per block // to reward per second. Moreover, we've implemented safe transfer of reward instead of mint in Masterchef. // Future is crosschain... // The contract is ownable untill the DAO will be able to take over. Popsicle community shows that DAO is coming soon. // And the contract ownership will be transferred to other contract contract Sorbettiere is Ownable { using SafeERC20 for IERC20; // Info of each user. struct UserInfo { uint256 amount; // How many LP tokens the user has provided. uint256 rewardDebt; // Reward debt. See explanation below. uint256 remainingTokenReward; // Tokens that weren't distributed for user per pool. // // We do some fancy math here. Basically, any point in time, the amount of ICE // entitled to a user but is pending to be distributed is: // // pending reward = (user.amount * pool.accRewardPerShare) - user.rewardDebt // // Whenever a user deposits or withdraws Staked tokens to a pool. Here's what happens: // 1. The pool's `accRewardPerShare` (and `lastRewardTime`) gets updated. // 2. User receives the pending reward sent to his/her address. // 3. User's `amount` gets updated. // 4. User's `rewardDebt` gets updated. } // Info of each pool. struct PoolInfo { IERC20 stakingToken; // Contract address of staked token uint256 stakingTokenTotalAmount; //Total amount of deposited tokens uint256 accRewardPerShare; // Accumulated reward per share, times 1e12. See below. uint32 lastRewardTime; // Last timestamp number that reward distribution occurs. uint16 allocPoint; // How many allocation points assigned to this pool. Reward to distribute per second. } IERC20 immutable public rewardToken; // The reward token uint256 public rewardPerSecond; // Reward tokens vested per second. PoolInfo[] public poolInfo; // Info of each pool. mapping(uint256 => mapping(address => UserInfo)) public userInfo; // Info of each user that stakes tokens. uint256 public totalAllocPoint = 0; // Total allocation poitns. Must be the sum of all allocation points in all pools. uint32 immutable public startTime; // The timestamp when farming starts. uint32 public endTime; // Time on which the reward calculation should end event Deposit(address indexed user, uint256 indexed pid, uint256 amount); event Withdraw(address indexed user, uint256 indexed pid, uint256 amount); event EmergencyWithdraw(address indexed user, uint256 indexed pid, uint256 amount); constructor( IERC20 _rewardToken, uint256 _rewardPerSecond, uint32 _startTime ) { rewardToken = _rewardToken; rewardPerSecond = _rewardPerSecond; startTime = _startTime; endTime = _startTime + 7 days; } function changeEndTime(uint32 addSeconds) external onlyOwner { endTime += addSeconds; } // Changes token reward per second. Use this function to moderate the `lockup amount`. Essentially this function changes the amount of the reward // which is entitled to the user for his token staking by the time the `endTime` is passed. //Good practice to update pools without messing up the contract function setRewardPerSecond(uint256 _rewardPerSecond, bool _withUpdate) external onlyOwner { if (_withUpdate) { massUpdatePools(); } rewardPerSecond= _rewardPerSecond; } // How many pools are in the contract function poolLength() external view returns (uint256) { return poolInfo.length; } // Add a new staking token to the pool. Can only be called by the owner. // VERY IMPORTANT NOTICE // ----------- DO NOT add the same staking token more than once. Rewards will be messed up if you do. ------------- // Good practice to update pools without messing up the contract function add( uint16 _allocPoint, IERC20 _stakingToken, bool _withUpdate ) external onlyOwner { if (_withUpdate) { massUpdatePools(); } uint256 lastRewardTime = block.timestamp > startTime ? block.timestamp : startTime; totalAllocPoint +=_allocPoint; poolInfo.push( PoolInfo({ stakingToken: _stakingToken, stakingTokenTotalAmount: 0, allocPoint: _allocPoint, lastRewardTime: uint32(lastRewardTime), accRewardPerShare: 0 }) ); } // Update the given pool's reward allocation point. Can only be called by the owner. // Good practice to update pools without messing up the contract function set( uint256 _pid, uint16 _allocPoint, bool _withUpdate ) external onlyOwner { if (_withUpdate) { massUpdatePools(); } totalAllocPoint = totalAllocPoint - poolInfo[_pid].allocPoint + _allocPoint; poolInfo[_pid].allocPoint = _allocPoint; } // Return reward multiplier over the given _from to _to time. function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256) { _from = _from > startTime ? _from : startTime; if (_from > endTime || _to < startTime) { return 0; } if (_to > endTime) { return endTime - _from; } return _to - _from; } // View function to see pending reward on frontend. function pendingReward(uint256 _pid, address _user) external view returns (uint256) { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][_user]; uint256 accRewardPerShare = pool.accRewardPerShare; if (block.timestamp > pool.lastRewardTime && pool.stakingTokenTotalAmount != 0) { uint256 multiplier = getMultiplier(pool.lastRewardTime, block.timestamp); uint256 reward = multiplier * rewardPerSecond * pool.allocPoint / totalAllocPoint; accRewardPerShare += reward * 1e12 / pool.stakingTokenTotalAmount; } return user.amount * accRewardPerShare / 1e12 - user.rewardDebt + user.remainingTokenReward; } // Update reward vairables for all pools. Be careful of gas spending! function massUpdatePools() public { uint256 length = poolInfo.length; for (uint256 pid = 0; pid < length; ++pid) { updatePool(pid); } } // Update reward variables of the given pool to be up-to-date. function updatePool(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; if (block.timestamp <= pool.lastRewardTime) { return; } if (pool.stakingTokenTotalAmount == 0) { pool.lastRewardTime = uint32(block.timestamp); return; } uint256 multiplier = getMultiplier(pool.lastRewardTime, block.timestamp); uint256 reward = multiplier * rewardPerSecond * pool.allocPoint / totalAllocPoint; pool.accRewardPerShare += reward * 1e12 / pool.stakingTokenTotalAmount; pool.lastRewardTime = uint32(block.timestamp); } // Deposit staking tokens to Sorbettiere for rewards allocation. function deposit(uint256 _pid, uint256 _amount) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; updatePool(_pid); if (user.amount > 0) { uint256 pending = user.amount * pool.accRewardPerShare / 1e12 - user.rewardDebt + user.remainingTokenReward; user.remainingTokenReward = safeRewardTransfer(msg.sender, pending); } pool.stakingToken.safeTransferFrom( address(msg.sender), address(this), _amount ); user.amount += _amount; pool.stakingTokenTotalAmount += _amount; user.rewardDebt = user.amount * pool.accRewardPerShare / 1e12; emit Deposit(msg.sender, _pid, _amount); } // Withdraw staked tokens from Sorbettiere. function withdraw(uint256 _pid, uint256 _amount) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; require(user.amount >= _amount, "Sorbettiere: you cant eat that much popsicles"); updatePool(_pid); uint256 pending = user.amount * pool.accRewardPerShare / 1e12 - user.rewardDebt + user.remainingTokenReward; user.remainingTokenReward = safeRewardTransfer(msg.sender, pending); user.amount -= _amount; pool.stakingTokenTotalAmount -= _amount; user.rewardDebt = user.amount * pool.accRewardPerShare / 1e12; pool.stakingToken.safeTransfer(address(msg.sender), _amount); emit Withdraw(msg.sender, _pid, _amount); } // Withdraw without caring about rewards. EMERGENCY ONLY. function emergencyWithdraw(uint256 _pid) public { PoolInfo storage pool = poolInfo[_pid]; UserInfo storage user = userInfo[_pid][msg.sender]; uint256 userAmount = user.amount; pool.stakingTokenTotalAmount -= userAmount; delete userInfo[_pid][msg.sender]; pool.stakingToken.safeTransfer(address(msg.sender), userAmount); emit EmergencyWithdraw(msg.sender, _pid, userAmount); } // Safe reward transfer function. Just in case if the pool does not have enough rewards token, // The function returns the amount which is owed to the user function safeRewardTransfer(address _to, uint256 _amount) internal returns(uint256) { uint256 rewardTokenBalance = rewardToken.balanceOf(address(this)); if (rewardTokenBalance == 0) { //save some gas fee return _amount; } if (_amount > rewardTokenBalance) { //save some gas fee rewardToken.safeTransfer(_to, rewardTokenBalance); return _amount - rewardTokenBalance; } rewardToken.safeTransfer(_to, _amount); return 0; } }
// SPDX-License-Identifier: MIT pragma solidity ^0.8.4; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; contract USDV721 is ERC721, ERC721Burnable, Ownable { constructor() ERC721("TEST_USDV", "TEST_USDV") {} function mint(address to, uint256 tokenId) public onlyOwner { _mint(to, tokenId); } function burn(uint256 tokenId) public override onlyOwner{ _burn(tokenId); } }
{ "optimizer": { "enabled": true, "runs": 1000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "abi" ] } } }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
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IVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ethPriceSource","outputs":[{"internalType":"contract IPriceSource","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getClosingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDebtCeiling","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getEthPriceSource","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTVL","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokenPriceSource","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"payBackToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"setClosingFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"setDebtCeiling","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_pool","type":"address"}],"name":"setStabilityPool","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenPeg","type":"uint256"}],"name":"setTokenPeg","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_treasury","type":"uint256"}],"name":"setTreasury","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stabilityPool","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenPeg","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"},{"internalType":"address","name":"to","type":"address"}],"name":"transferVault","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"treasury","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"usdv","outputs":[{"internalType":"contract USDV","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"vaultCollateral","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vaultCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"vaultDebt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"vaultExistence","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"vaultOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawCollateral","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000f4766552d15ae4d256ad41b6cf2933482b0680dc0000000000000000000000000000000000000000000000000000000000000082000000000000000000000000288e3a9c5ec6be07fbebff387ec08747c4c5a17c00000000000000000000000049f0e043505bbdf791f3c7cff4891050a67498c8
-----Decoded View---------------
Arg [0] : ethPriceSourceAddress (address): 0xf4766552D15AE4d256Ad41B6cf2933482B0680dc
Arg [1] : minimumCollateralPercentage (uint256): 130
Arg [2] : vaultAddress (address): 0x288E3a9c5Ec6BE07fbEBFf387EC08747C4C5a17C
Arg [3] : usdvAddress (address): 0x49F0e043505BBdf791f3c7cff4891050A67498C8
-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 000000000000000000000000f4766552d15ae4d256ad41b6cf2933482b0680dc
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000082
Arg [2] : 000000000000000000000000288e3a9c5ec6be07fbebff387ec08747c4c5a17c
Arg [3] : 00000000000000000000000049f0e043505bbdf791f3c7cff4891050a67498c8
Deployed Bytecode Sourcemap
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Swarm Source
ipfs://164afa96ce6ecc049c61abdb0c36cd11f9ce30ad9a7feebe219849748c6437d6
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Multichain Portfolio | 24 Chains
Chain | Token | Portfolio % | Price | Amount | Value |
---|---|---|---|---|---|
FTM | Fantom (FTM) | 100.00% | $1.01 | 110.565 | $111.69 |
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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.