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Contract Name:
SwapRolloverLoan
Compiler Version
v0.8.11+commit.d7f03943
Optimization Enabled:
Yes with 200 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.0;
import "./SwapRolloverLoan_G1.sol";
contract SwapRolloverLoan is SwapRolloverLoan_G1 {
constructor(
address _tellerV2,
address _factory,
address _WETH9
)
SwapRolloverLoan_G1(
_tellerV2,
_factory,
_WETH9
)
{}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20Upgradeable {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev 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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @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`.
*
* 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;
/**
* @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 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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* 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 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 the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @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 functionCallWithValue(target, data, 0, "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");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, 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) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or 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 {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// 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
/// @solidity memory-safe-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/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 IERC165Upgradeable {
/**
* @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
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev 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);
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)
pragma solidity ^0.8.0;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
enum Rounding {
Down, // Toward negative infinity
Up, // Toward infinity
Zero // Toward zero
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds up instead
* of rounding down.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
* with further edits by Uniswap Labs also under MIT license.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator
) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
require(denominator > prod1);
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
// See https://cs.stackexchange.com/q/138556/92363.
// Does not overflow because the denominator cannot be zero at this stage in the function.
uint256 twos = denominator & (~denominator + 1);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
// in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(
uint256 x,
uint256 y,
uint256 denominator,
Rounding rounding
) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10, rounded down, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10**64) {
value /= 10**64;
result += 64;
}
if (value >= 10**32) {
value /= 10**32;
result += 32;
}
if (value >= 10**16) {
value /= 10**16;
result += 16;
}
if (value >= 10**8) {
value /= 10**8;
result += 8;
}
if (value >= 10**4) {
value /= 10**4;
result += 4;
}
if (value >= 10**2) {
value /= 10**2;
result += 2;
}
if (value >= 10**1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256, rounded down, of a positive value.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol)
// This file was procedurally generated from scripts/generate/templates/SafeCast.js.
pragma solidity ^0.8.0;
/**
* @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
* checks.
*
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
* easily result in undesired exploitation or bugs, since developers usually
* assume that overflows raise errors. `SafeCast` restores this intuition by
* reverting the transaction when such an operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*
* Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
* all math on `uint256` and `int256` and then downcasting.
*/
library SafeCast {
/**
* @dev Returns the downcasted uint248 from uint256, reverting on
* overflow (when the input is greater than largest uint248).
*
* Counterpart to Solidity's `uint248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*
* _Available since v4.7._
*/
function toUint248(uint256 value) internal pure returns (uint248) {
require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits");
return uint248(value);
}
/**
* @dev Returns the downcasted uint240 from uint256, reverting on
* overflow (when the input is greater than largest uint240).
*
* Counterpart to Solidity's `uint240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*
* _Available since v4.7._
*/
function toUint240(uint256 value) internal pure returns (uint240) {
require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits");
return uint240(value);
}
/**
* @dev Returns the downcasted uint232 from uint256, reverting on
* overflow (when the input is greater than largest uint232).
*
* Counterpart to Solidity's `uint232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*
* _Available since v4.7._
*/
function toUint232(uint256 value) internal pure returns (uint232) {
require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits");
return uint232(value);
}
/**
* @dev Returns the downcasted uint224 from uint256, reverting on
* overflow (when the input is greater than largest uint224).
*
* Counterpart to Solidity's `uint224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*
* _Available since v4.2._
*/
function toUint224(uint256 value) internal pure returns (uint224) {
require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits");
return uint224(value);
}
/**
* @dev Returns the downcasted uint216 from uint256, reverting on
* overflow (when the input is greater than largest uint216).
*
* Counterpart to Solidity's `uint216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*
* _Available since v4.7._
*/
function toUint216(uint256 value) internal pure returns (uint216) {
require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits");
return uint216(value);
}
/**
* @dev Returns the downcasted uint208 from uint256, reverting on
* overflow (when the input is greater than largest uint208).
*
* Counterpart to Solidity's `uint208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*
* _Available since v4.7._
*/
function toUint208(uint256 value) internal pure returns (uint208) {
require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits");
return uint208(value);
}
/**
* @dev Returns the downcasted uint200 from uint256, reverting on
* overflow (when the input is greater than largest uint200).
*
* Counterpart to Solidity's `uint200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*
* _Available since v4.7._
*/
function toUint200(uint256 value) internal pure returns (uint200) {
require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits");
return uint200(value);
}
/**
* @dev Returns the downcasted uint192 from uint256, reverting on
* overflow (when the input is greater than largest uint192).
*
* Counterpart to Solidity's `uint192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*
* _Available since v4.7._
*/
function toUint192(uint256 value) internal pure returns (uint192) {
require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits");
return uint192(value);
}
/**
* @dev Returns the downcasted uint184 from uint256, reverting on
* overflow (when the input is greater than largest uint184).
*
* Counterpart to Solidity's `uint184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*
* _Available since v4.7._
*/
function toUint184(uint256 value) internal pure returns (uint184) {
require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
return uint184(value);
}
/**
* @dev Returns the downcasted uint176 from uint256, reverting on
* overflow (when the input is greater than largest uint176).
*
* Counterpart to Solidity's `uint176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*
* _Available since v4.7._
*/
function toUint176(uint256 value) internal pure returns (uint176) {
require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits");
return uint176(value);
}
/**
* @dev Returns the downcasted uint168 from uint256, reverting on
* overflow (when the input is greater than largest uint168).
*
* Counterpart to Solidity's `uint168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*
* _Available since v4.7._
*/
function toUint168(uint256 value) internal pure returns (uint168) {
require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits");
return uint168(value);
}
/**
* @dev Returns the downcasted uint160 from uint256, reverting on
* overflow (when the input is greater than largest uint160).
*
* Counterpart to Solidity's `uint160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*
* _Available since v4.7._
*/
function toUint160(uint256 value) internal pure returns (uint160) {
require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits");
return uint160(value);
}
/**
* @dev Returns the downcasted uint152 from uint256, reverting on
* overflow (when the input is greater than largest uint152).
*
* Counterpart to Solidity's `uint152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*
* _Available since v4.7._
*/
function toUint152(uint256 value) internal pure returns (uint152) {
require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits");
return uint152(value);
}
/**
* @dev Returns the downcasted uint144 from uint256, reverting on
* overflow (when the input is greater than largest uint144).
*
* Counterpart to Solidity's `uint144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*
* _Available since v4.7._
*/
function toUint144(uint256 value) internal pure returns (uint144) {
require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits");
return uint144(value);
}
/**
* @dev Returns the downcasted uint136 from uint256, reverting on
* overflow (when the input is greater than largest uint136).
*
* Counterpart to Solidity's `uint136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*
* _Available since v4.7._
*/
function toUint136(uint256 value) internal pure returns (uint136) {
require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits");
return uint136(value);
}
/**
* @dev Returns the downcasted uint128 from uint256, reverting on
* overflow (when the input is greater than largest uint128).
*
* Counterpart to Solidity's `uint128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*
* _Available since v2.5._
*/
function toUint128(uint256 value) internal pure returns (uint128) {
require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits");
return uint128(value);
}
/**
* @dev Returns the downcasted uint120 from uint256, reverting on
* overflow (when the input is greater than largest uint120).
*
* Counterpart to Solidity's `uint120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*
* _Available since v4.7._
*/
function toUint120(uint256 value) internal pure returns (uint120) {
require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits");
return uint120(value);
}
/**
* @dev Returns the downcasted uint112 from uint256, reverting on
* overflow (when the input is greater than largest uint112).
*
* Counterpart to Solidity's `uint112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*
* _Available since v4.7._
*/
function toUint112(uint256 value) internal pure returns (uint112) {
require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits");
return uint112(value);
}
/**
* @dev Returns the downcasted uint104 from uint256, reverting on
* overflow (when the input is greater than largest uint104).
*
* Counterpart to Solidity's `uint104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*
* _Available since v4.7._
*/
function toUint104(uint256 value) internal pure returns (uint104) {
require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits");
return uint104(value);
}
/**
* @dev Returns the downcasted uint96 from uint256, reverting on
* overflow (when the input is greater than largest uint96).
*
* Counterpart to Solidity's `uint96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*
* _Available since v4.2._
*/
function toUint96(uint256 value) internal pure returns (uint96) {
require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits");
return uint96(value);
}
/**
* @dev Returns the downcasted uint88 from uint256, reverting on
* overflow (when the input is greater than largest uint88).
*
* Counterpart to Solidity's `uint88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*
* _Available since v4.7._
*/
function toUint88(uint256 value) internal pure returns (uint88) {
require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits");
return uint88(value);
}
/**
* @dev Returns the downcasted uint80 from uint256, reverting on
* overflow (when the input is greater than largest uint80).
*
* Counterpart to Solidity's `uint80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*
* _Available since v4.7._
*/
function toUint80(uint256 value) internal pure returns (uint80) {
require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits");
return uint80(value);
}
/**
* @dev Returns the downcasted uint72 from uint256, reverting on
* overflow (when the input is greater than largest uint72).
*
* Counterpart to Solidity's `uint72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*
* _Available since v4.7._
*/
function toUint72(uint256 value) internal pure returns (uint72) {
require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits");
return uint72(value);
}
/**
* @dev Returns the downcasted uint64 from uint256, reverting on
* overflow (when the input is greater than largest uint64).
*
* Counterpart to Solidity's `uint64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*
* _Available since v2.5._
*/
function toUint64(uint256 value) internal pure returns (uint64) {
require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits");
return uint64(value);
}
/**
* @dev Returns the downcasted uint56 from uint256, reverting on
* overflow (when the input is greater than largest uint56).
*
* Counterpart to Solidity's `uint56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*
* _Available since v4.7._
*/
function toUint56(uint256 value) internal pure returns (uint56) {
require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits");
return uint56(value);
}
/**
* @dev Returns the downcasted uint48 from uint256, reverting on
* overflow (when the input is greater than largest uint48).
*
* Counterpart to Solidity's `uint48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*
* _Available since v4.7._
*/
function toUint48(uint256 value) internal pure returns (uint48) {
require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
return uint48(value);
}
/**
* @dev Returns the downcasted uint40 from uint256, reverting on
* overflow (when the input is greater than largest uint40).
*
* Counterpart to Solidity's `uint40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*
* _Available since v4.7._
*/
function toUint40(uint256 value) internal pure returns (uint40) {
require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits");
return uint40(value);
}
/**
* @dev Returns the downcasted uint32 from uint256, reverting on
* overflow (when the input is greater than largest uint32).
*
* Counterpart to Solidity's `uint32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*
* _Available since v2.5._
*/
function toUint32(uint256 value) internal pure returns (uint32) {
require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits");
return uint32(value);
}
/**
* @dev Returns the downcasted uint24 from uint256, reverting on
* overflow (when the input is greater than largest uint24).
*
* Counterpart to Solidity's `uint24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*
* _Available since v4.7._
*/
function toUint24(uint256 value) internal pure returns (uint24) {
require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits");
return uint24(value);
}
/**
* @dev Returns the downcasted uint16 from uint256, reverting on
* overflow (when the input is greater than largest uint16).
*
* Counterpart to Solidity's `uint16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*
* _Available since v2.5._
*/
function toUint16(uint256 value) internal pure returns (uint16) {
require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits");
return uint16(value);
}
/**
* @dev Returns the downcasted uint8 from uint256, reverting on
* overflow (when the input is greater than largest uint8).
*
* Counterpart to Solidity's `uint8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*
* _Available since v2.5._
*/
function toUint8(uint256 value) internal pure returns (uint8) {
require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits");
return uint8(value);
}
/**
* @dev Converts a signed int256 into an unsigned uint256.
*
* Requirements:
*
* - input must be greater than or equal to 0.
*
* _Available since v3.0._
*/
function toUint256(int256 value) internal pure returns (uint256) {
require(value >= 0, "SafeCast: value must be positive");
return uint256(value);
}
/**
* @dev Returns the downcasted int248 from int256, reverting on
* overflow (when the input is less than smallest int248 or
* greater than largest int248).
*
* Counterpart to Solidity's `int248` operator.
*
* Requirements:
*
* - input must fit into 248 bits
*
* _Available since v4.7._
*/
function toInt248(int256 value) internal pure returns (int248 downcasted) {
downcasted = int248(value);
require(downcasted == value, "SafeCast: value doesn't fit in 248 bits");
}
/**
* @dev Returns the downcasted int240 from int256, reverting on
* overflow (when the input is less than smallest int240 or
* greater than largest int240).
*
* Counterpart to Solidity's `int240` operator.
*
* Requirements:
*
* - input must fit into 240 bits
*
* _Available since v4.7._
*/
function toInt240(int256 value) internal pure returns (int240 downcasted) {
downcasted = int240(value);
require(downcasted == value, "SafeCast: value doesn't fit in 240 bits");
}
/**
* @dev Returns the downcasted int232 from int256, reverting on
* overflow (when the input is less than smallest int232 or
* greater than largest int232).
*
* Counterpart to Solidity's `int232` operator.
*
* Requirements:
*
* - input must fit into 232 bits
*
* _Available since v4.7._
*/
function toInt232(int256 value) internal pure returns (int232 downcasted) {
downcasted = int232(value);
require(downcasted == value, "SafeCast: value doesn't fit in 232 bits");
}
/**
* @dev Returns the downcasted int224 from int256, reverting on
* overflow (when the input is less than smallest int224 or
* greater than largest int224).
*
* Counterpart to Solidity's `int224` operator.
*
* Requirements:
*
* - input must fit into 224 bits
*
* _Available since v4.7._
*/
function toInt224(int256 value) internal pure returns (int224 downcasted) {
downcasted = int224(value);
require(downcasted == value, "SafeCast: value doesn't fit in 224 bits");
}
/**
* @dev Returns the downcasted int216 from int256, reverting on
* overflow (when the input is less than smallest int216 or
* greater than largest int216).
*
* Counterpart to Solidity's `int216` operator.
*
* Requirements:
*
* - input must fit into 216 bits
*
* _Available since v4.7._
*/
function toInt216(int256 value) internal pure returns (int216 downcasted) {
downcasted = int216(value);
require(downcasted == value, "SafeCast: value doesn't fit in 216 bits");
}
/**
* @dev Returns the downcasted int208 from int256, reverting on
* overflow (when the input is less than smallest int208 or
* greater than largest int208).
*
* Counterpart to Solidity's `int208` operator.
*
* Requirements:
*
* - input must fit into 208 bits
*
* _Available since v4.7._
*/
function toInt208(int256 value) internal pure returns (int208 downcasted) {
downcasted = int208(value);
require(downcasted == value, "SafeCast: value doesn't fit in 208 bits");
}
/**
* @dev Returns the downcasted int200 from int256, reverting on
* overflow (when the input is less than smallest int200 or
* greater than largest int200).
*
* Counterpart to Solidity's `int200` operator.
*
* Requirements:
*
* - input must fit into 200 bits
*
* _Available since v4.7._
*/
function toInt200(int256 value) internal pure returns (int200 downcasted) {
downcasted = int200(value);
require(downcasted == value, "SafeCast: value doesn't fit in 200 bits");
}
/**
* @dev Returns the downcasted int192 from int256, reverting on
* overflow (when the input is less than smallest int192 or
* greater than largest int192).
*
* Counterpart to Solidity's `int192` operator.
*
* Requirements:
*
* - input must fit into 192 bits
*
* _Available since v4.7._
*/
function toInt192(int256 value) internal pure returns (int192 downcasted) {
downcasted = int192(value);
require(downcasted == value, "SafeCast: value doesn't fit in 192 bits");
}
/**
* @dev Returns the downcasted int184 from int256, reverting on
* overflow (when the input is less than smallest int184 or
* greater than largest int184).
*
* Counterpart to Solidity's `int184` operator.
*
* Requirements:
*
* - input must fit into 184 bits
*
* _Available since v4.7._
*/
function toInt184(int256 value) internal pure returns (int184 downcasted) {
downcasted = int184(value);
require(downcasted == value, "SafeCast: value doesn't fit in 184 bits");
}
/**
* @dev Returns the downcasted int176 from int256, reverting on
* overflow (when the input is less than smallest int176 or
* greater than largest int176).
*
* Counterpart to Solidity's `int176` operator.
*
* Requirements:
*
* - input must fit into 176 bits
*
* _Available since v4.7._
*/
function toInt176(int256 value) internal pure returns (int176 downcasted) {
downcasted = int176(value);
require(downcasted == value, "SafeCast: value doesn't fit in 176 bits");
}
/**
* @dev Returns the downcasted int168 from int256, reverting on
* overflow (when the input is less than smallest int168 or
* greater than largest int168).
*
* Counterpart to Solidity's `int168` operator.
*
* Requirements:
*
* - input must fit into 168 bits
*
* _Available since v4.7._
*/
function toInt168(int256 value) internal pure returns (int168 downcasted) {
downcasted = int168(value);
require(downcasted == value, "SafeCast: value doesn't fit in 168 bits");
}
/**
* @dev Returns the downcasted int160 from int256, reverting on
* overflow (when the input is less than smallest int160 or
* greater than largest int160).
*
* Counterpart to Solidity's `int160` operator.
*
* Requirements:
*
* - input must fit into 160 bits
*
* _Available since v4.7._
*/
function toInt160(int256 value) internal pure returns (int160 downcasted) {
downcasted = int160(value);
require(downcasted == value, "SafeCast: value doesn't fit in 160 bits");
}
/**
* @dev Returns the downcasted int152 from int256, reverting on
* overflow (when the input is less than smallest int152 or
* greater than largest int152).
*
* Counterpart to Solidity's `int152` operator.
*
* Requirements:
*
* - input must fit into 152 bits
*
* _Available since v4.7._
*/
function toInt152(int256 value) internal pure returns (int152 downcasted) {
downcasted = int152(value);
require(downcasted == value, "SafeCast: value doesn't fit in 152 bits");
}
/**
* @dev Returns the downcasted int144 from int256, reverting on
* overflow (when the input is less than smallest int144 or
* greater than largest int144).
*
* Counterpart to Solidity's `int144` operator.
*
* Requirements:
*
* - input must fit into 144 bits
*
* _Available since v4.7._
*/
function toInt144(int256 value) internal pure returns (int144 downcasted) {
downcasted = int144(value);
require(downcasted == value, "SafeCast: value doesn't fit in 144 bits");
}
/**
* @dev Returns the downcasted int136 from int256, reverting on
* overflow (when the input is less than smallest int136 or
* greater than largest int136).
*
* Counterpart to Solidity's `int136` operator.
*
* Requirements:
*
* - input must fit into 136 bits
*
* _Available since v4.7._
*/
function toInt136(int256 value) internal pure returns (int136 downcasted) {
downcasted = int136(value);
require(downcasted == value, "SafeCast: value doesn't fit in 136 bits");
}
/**
* @dev Returns the downcasted int128 from int256, reverting on
* overflow (when the input is less than smallest int128 or
* greater than largest int128).
*
* Counterpart to Solidity's `int128` operator.
*
* Requirements:
*
* - input must fit into 128 bits
*
* _Available since v3.1._
*/
function toInt128(int256 value) internal pure returns (int128 downcasted) {
downcasted = int128(value);
require(downcasted == value, "SafeCast: value doesn't fit in 128 bits");
}
/**
* @dev Returns the downcasted int120 from int256, reverting on
* overflow (when the input is less than smallest int120 or
* greater than largest int120).
*
* Counterpart to Solidity's `int120` operator.
*
* Requirements:
*
* - input must fit into 120 bits
*
* _Available since v4.7._
*/
function toInt120(int256 value) internal pure returns (int120 downcasted) {
downcasted = int120(value);
require(downcasted == value, "SafeCast: value doesn't fit in 120 bits");
}
/**
* @dev Returns the downcasted int112 from int256, reverting on
* overflow (when the input is less than smallest int112 or
* greater than largest int112).
*
* Counterpart to Solidity's `int112` operator.
*
* Requirements:
*
* - input must fit into 112 bits
*
* _Available since v4.7._
*/
function toInt112(int256 value) internal pure returns (int112 downcasted) {
downcasted = int112(value);
require(downcasted == value, "SafeCast: value doesn't fit in 112 bits");
}
/**
* @dev Returns the downcasted int104 from int256, reverting on
* overflow (when the input is less than smallest int104 or
* greater than largest int104).
*
* Counterpart to Solidity's `int104` operator.
*
* Requirements:
*
* - input must fit into 104 bits
*
* _Available since v4.7._
*/
function toInt104(int256 value) internal pure returns (int104 downcasted) {
downcasted = int104(value);
require(downcasted == value, "SafeCast: value doesn't fit in 104 bits");
}
/**
* @dev Returns the downcasted int96 from int256, reverting on
* overflow (when the input is less than smallest int96 or
* greater than largest int96).
*
* Counterpart to Solidity's `int96` operator.
*
* Requirements:
*
* - input must fit into 96 bits
*
* _Available since v4.7._
*/
function toInt96(int256 value) internal pure returns (int96 downcasted) {
downcasted = int96(value);
require(downcasted == value, "SafeCast: value doesn't fit in 96 bits");
}
/**
* @dev Returns the downcasted int88 from int256, reverting on
* overflow (when the input is less than smallest int88 or
* greater than largest int88).
*
* Counterpart to Solidity's `int88` operator.
*
* Requirements:
*
* - input must fit into 88 bits
*
* _Available since v4.7._
*/
function toInt88(int256 value) internal pure returns (int88 downcasted) {
downcasted = int88(value);
require(downcasted == value, "SafeCast: value doesn't fit in 88 bits");
}
/**
* @dev Returns the downcasted int80 from int256, reverting on
* overflow (when the input is less than smallest int80 or
* greater than largest int80).
*
* Counterpart to Solidity's `int80` operator.
*
* Requirements:
*
* - input must fit into 80 bits
*
* _Available since v4.7._
*/
function toInt80(int256 value) internal pure returns (int80 downcasted) {
downcasted = int80(value);
require(downcasted == value, "SafeCast: value doesn't fit in 80 bits");
}
/**
* @dev Returns the downcasted int72 from int256, reverting on
* overflow (when the input is less than smallest int72 or
* greater than largest int72).
*
* Counterpart to Solidity's `int72` operator.
*
* Requirements:
*
* - input must fit into 72 bits
*
* _Available since v4.7._
*/
function toInt72(int256 value) internal pure returns (int72 downcasted) {
downcasted = int72(value);
require(downcasted == value, "SafeCast: value doesn't fit in 72 bits");
}
/**
* @dev Returns the downcasted int64 from int256, reverting on
* overflow (when the input is less than smallest int64 or
* greater than largest int64).
*
* Counterpart to Solidity's `int64` operator.
*
* Requirements:
*
* - input must fit into 64 bits
*
* _Available since v3.1._
*/
function toInt64(int256 value) internal pure returns (int64 downcasted) {
downcasted = int64(value);
require(downcasted == value, "SafeCast: value doesn't fit in 64 bits");
}
/**
* @dev Returns the downcasted int56 from int256, reverting on
* overflow (when the input is less than smallest int56 or
* greater than largest int56).
*
* Counterpart to Solidity's `int56` operator.
*
* Requirements:
*
* - input must fit into 56 bits
*
* _Available since v4.7._
*/
function toInt56(int256 value) internal pure returns (int56 downcasted) {
downcasted = int56(value);
require(downcasted == value, "SafeCast: value doesn't fit in 56 bits");
}
/**
* @dev Returns the downcasted int48 from int256, reverting on
* overflow (when the input is less than smallest int48 or
* greater than largest int48).
*
* Counterpart to Solidity's `int48` operator.
*
* Requirements:
*
* - input must fit into 48 bits
*
* _Available since v4.7._
*/
function toInt48(int256 value) internal pure returns (int48 downcasted) {
downcasted = int48(value);
require(downcasted == value, "SafeCast: value doesn't fit in 48 bits");
}
/**
* @dev Returns the downcasted int40 from int256, reverting on
* overflow (when the input is less than smallest int40 or
* greater than largest int40).
*
* Counterpart to Solidity's `int40` operator.
*
* Requirements:
*
* - input must fit into 40 bits
*
* _Available since v4.7._
*/
function toInt40(int256 value) internal pure returns (int40 downcasted) {
downcasted = int40(value);
require(downcasted == value, "SafeCast: value doesn't fit in 40 bits");
}
/**
* @dev Returns the downcasted int32 from int256, reverting on
* overflow (when the input is less than smallest int32 or
* greater than largest int32).
*
* Counterpart to Solidity's `int32` operator.
*
* Requirements:
*
* - input must fit into 32 bits
*
* _Available since v3.1._
*/
function toInt32(int256 value) internal pure returns (int32 downcasted) {
downcasted = int32(value);
require(downcasted == value, "SafeCast: value doesn't fit in 32 bits");
}
/**
* @dev Returns the downcasted int24 from int256, reverting on
* overflow (when the input is less than smallest int24 or
* greater than largest int24).
*
* Counterpart to Solidity's `int24` operator.
*
* Requirements:
*
* - input must fit into 24 bits
*
* _Available since v4.7._
*/
function toInt24(int256 value) internal pure returns (int24 downcasted) {
downcasted = int24(value);
require(downcasted == value, "SafeCast: value doesn't fit in 24 bits");
}
/**
* @dev Returns the downcasted int16 from int256, reverting on
* overflow (when the input is less than smallest int16 or
* greater than largest int16).
*
* Counterpart to Solidity's `int16` operator.
*
* Requirements:
*
* - input must fit into 16 bits
*
* _Available since v3.1._
*/
function toInt16(int256 value) internal pure returns (int16 downcasted) {
downcasted = int16(value);
require(downcasted == value, "SafeCast: value doesn't fit in 16 bits");
}
/**
* @dev Returns the downcasted int8 from int256, reverting on
* overflow (when the input is less than smallest int8 or
* greater than largest int8).
*
* Counterpart to Solidity's `int8` operator.
*
* Requirements:
*
* - input must fit into 8 bits
*
* _Available since v3.1._
*/
function toInt8(int256 value) internal pure returns (int8 downcasted) {
downcasted = int8(value);
require(downcasted == value, "SafeCast: value doesn't fit in 8 bits");
}
/**
* @dev Converts an unsigned uint256 into a signed int256.
*
* Requirements:
*
* - input must be less than or equal to maxInt256.
*
* _Available since v3.0._
*/
function toInt256(uint256 value) internal pure returns (int256) {
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256");
return int256(value);
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)
pragma solidity ^0.8.0;
// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.
/**
* @dev Wrappers over Solidity's arithmetic operations.
*
* NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
* now has built in overflow checking.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a + b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator.
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.
pragma solidity ^0.8.0;
/**
* @dev Library for managing
* https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
* types.
*
* Sets have the following properties:
*
* - Elements are added, removed, and checked for existence in constant time
* (O(1)).
* - Elements are enumerated in O(n). No guarantees are made on the ordering.
*
* ```
* contract Example {
* // Add the library methods
* using EnumerableSet for EnumerableSet.AddressSet;
*
* // Declare a set state variable
* EnumerableSet.AddressSet private mySet;
* }
* ```
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*
* [WARNING]
* ====
* Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
* unusable.
* See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
*
* In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
* array of EnumerableSet.
* ====
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Set type with
// bytes32 values.
// The Set implementation uses private functions, and user-facing
// implementations (such as AddressSet) are just wrappers around the
// underlying Set.
// This means that we can only create new EnumerableSets for types that fit
// in bytes32.
struct Set {
// Storage of set values
bytes32[] _values;
// Position of the value in the `values` array, plus 1 because index 0
// means a value is not in the set.
mapping(bytes32 => uint256) _indexes;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function _add(Set storage set, bytes32 value) private returns (bool) {
if (!_contains(set, value)) {
set._values.push(value);
// The value is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
set._indexes[value] = set._values.length;
return true;
} else {
return false;
}
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function _remove(Set storage set, bytes32 value) private returns (bool) {
// We read and store the value's index to prevent multiple reads from the same storage slot
uint256 valueIndex = set._indexes[value];
if (valueIndex != 0) {
// Equivalent to contains(set, value)
// To delete an element from the _values array in O(1), we swap the element to delete with the last one in
// the array, and then remove the last element (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 toDeleteIndex = valueIndex - 1;
uint256 lastIndex = set._values.length - 1;
if (lastIndex != toDeleteIndex) {
bytes32 lastValue = set._values[lastIndex];
// Move the last value to the index where the value to delete is
set._values[toDeleteIndex] = lastValue;
// Update the index for the moved value
set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
}
// Delete the slot where the moved value was stored
set._values.pop();
// Delete the index for the deleted slot
delete set._indexes[value];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function _contains(Set storage set, bytes32 value) private view returns (bool) {
return set._indexes[value] != 0;
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function _length(Set storage set) private view returns (uint256) {
return set._values.length;
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Set storage set, uint256 index) private view returns (bytes32) {
return set._values[index];
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function _values(Set storage set) private view returns (bytes32[] memory) {
return set._values;
}
// Bytes32Set
struct Bytes32Set {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _add(set._inner, value);
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _remove(set._inner, value);
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
return _contains(set._inner, value);
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(Bytes32Set storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
return _at(set._inner, index);
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
bytes32[] memory store = _values(set._inner);
bytes32[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// AddressSet
struct AddressSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(AddressSet storage set, address value) internal returns (bool) {
return _add(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(AddressSet storage set, address value) internal returns (bool) {
return _remove(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(AddressSet storage set, address value) internal view returns (bool) {
return _contains(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(AddressSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressSet storage set, uint256 index) internal view returns (address) {
return address(uint160(uint256(_at(set._inner, index))));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(AddressSet storage set) internal view returns (address[] memory) {
bytes32[] memory store = _values(set._inner);
address[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
// UintSet
struct UintSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(UintSet storage set, uint256 value) internal returns (bool) {
return _add(set._inner, bytes32(value));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(UintSet storage set, uint256 value) internal returns (bool) {
return _remove(set._inner, bytes32(value));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(UintSet storage set, uint256 value) internal view returns (bool) {
return _contains(set._inner, bytes32(value));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(UintSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintSet storage set, uint256 index) internal view returns (uint256) {
return uint256(_at(set._inner, index));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(UintSet storage set) internal view returns (uint256[] memory) {
bytes32[] memory store = _values(set._inner);
uint256[] memory result;
/// @solidity memory-safe-assembly
assembly {
result := store
}
return result;
}
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
import "../Types.sol";
import "../interfaces/IEAS.sol";
import "../interfaces/IASRegistry.sol";
/**
* @title TellerAS - Teller Attestation Service - based on EAS - Ethereum Attestation Service
*/
contract TellerAS is IEAS {
error AccessDenied();
error AlreadyRevoked();
error InvalidAttestation();
error InvalidExpirationTime();
error InvalidOffset();
error InvalidRegistry();
error InvalidSchema();
error InvalidVerifier();
error NotFound();
error NotPayable();
string public constant VERSION = "0.8";
// A terminator used when concatenating and hashing multiple fields.
string private constant HASH_TERMINATOR = "@";
// The AS global registry.
IASRegistry private immutable _asRegistry;
// The EIP712 verifier used to verify signed attestations.
IEASEIP712Verifier private immutable _eip712Verifier;
// A mapping between attestations and their related attestations.
mapping(bytes32 => bytes32[]) private _relatedAttestations;
// A mapping between an account and its received attestations.
mapping(address => mapping(bytes32 => bytes32[]))
private _receivedAttestations;
// A mapping between an account and its sent attestations.
mapping(address => mapping(bytes32 => bytes32[])) private _sentAttestations;
// A mapping between a schema and its attestations.
mapping(bytes32 => bytes32[]) private _schemaAttestations;
// The global mapping between attestations and their UUIDs.
mapping(bytes32 => Attestation) private _db;
// The global counter for the total number of attestations.
uint256 private _attestationsCount;
bytes32 private _lastUUID;
/**
* @dev Creates a new EAS instance.
*
* @param registry The address of the global AS registry.
* @param verifier The address of the EIP712 verifier.
*/
constructor(IASRegistry registry, IEASEIP712Verifier verifier) {
if (address(registry) == address(0x0)) {
revert InvalidRegistry();
}
if (address(verifier) == address(0x0)) {
revert InvalidVerifier();
}
_asRegistry = registry;
_eip712Verifier = verifier;
}
/**
* @inheritdoc IEAS
*/
function getASRegistry() external view override returns (IASRegistry) {
return _asRegistry;
}
/**
* @inheritdoc IEAS
*/
function getEIP712Verifier()
external
view
override
returns (IEASEIP712Verifier)
{
return _eip712Verifier;
}
/**
* @inheritdoc IEAS
*/
function getAttestationsCount() external view override returns (uint256) {
return _attestationsCount;
}
/**
* @inheritdoc IEAS
*/
function attest(
address recipient,
bytes32 schema,
uint256 expirationTime,
bytes32 refUUID,
bytes calldata data
) public payable virtual override returns (bytes32) {
return
_attest(
recipient,
schema,
expirationTime,
refUUID,
data,
msg.sender
);
}
/**
* @inheritdoc IEAS
*/
function attestByDelegation(
address recipient,
bytes32 schema,
uint256 expirationTime,
bytes32 refUUID,
bytes calldata data,
address attester,
uint8 v,
bytes32 r,
bytes32 s
) public payable virtual override returns (bytes32) {
_eip712Verifier.attest(
recipient,
schema,
expirationTime,
refUUID,
data,
attester,
v,
r,
s
);
return
_attest(recipient, schema, expirationTime, refUUID, data, attester);
}
/**
* @inheritdoc IEAS
*/
function revoke(bytes32 uuid) public virtual override {
return _revoke(uuid, msg.sender);
}
/**
* @inheritdoc IEAS
*/
function revokeByDelegation(
bytes32 uuid,
address attester,
uint8 v,
bytes32 r,
bytes32 s
) public virtual override {
_eip712Verifier.revoke(uuid, attester, v, r, s);
_revoke(uuid, attester);
}
/**
* @inheritdoc IEAS
*/
function getAttestation(bytes32 uuid)
external
view
override
returns (Attestation memory)
{
return _db[uuid];
}
/**
* @inheritdoc IEAS
*/
function isAttestationValid(bytes32 uuid)
public
view
override
returns (bool)
{
return _db[uuid].uuid != 0;
}
/**
* @inheritdoc IEAS
*/
function isAttestationActive(bytes32 uuid)
public
view
virtual
override
returns (bool)
{
return
isAttestationValid(uuid) &&
_db[uuid].expirationTime >= block.timestamp &&
_db[uuid].revocationTime == 0;
}
/**
* @inheritdoc IEAS
*/
function getReceivedAttestationUUIDs(
address recipient,
bytes32 schema,
uint256 start,
uint256 length,
bool reverseOrder
) external view override returns (bytes32[] memory) {
return
_sliceUUIDs(
_receivedAttestations[recipient][schema],
start,
length,
reverseOrder
);
}
/**
* @inheritdoc IEAS
*/
function getReceivedAttestationUUIDsCount(address recipient, bytes32 schema)
external
view
override
returns (uint256)
{
return _receivedAttestations[recipient][schema].length;
}
/**
* @inheritdoc IEAS
*/
function getSentAttestationUUIDs(
address attester,
bytes32 schema,
uint256 start,
uint256 length,
bool reverseOrder
) external view override returns (bytes32[] memory) {
return
_sliceUUIDs(
_sentAttestations[attester][schema],
start,
length,
reverseOrder
);
}
/**
* @inheritdoc IEAS
*/
function getSentAttestationUUIDsCount(address recipient, bytes32 schema)
external
view
override
returns (uint256)
{
return _sentAttestations[recipient][schema].length;
}
/**
* @inheritdoc IEAS
*/
function getRelatedAttestationUUIDs(
bytes32 uuid,
uint256 start,
uint256 length,
bool reverseOrder
) external view override returns (bytes32[] memory) {
return
_sliceUUIDs(
_relatedAttestations[uuid],
start,
length,
reverseOrder
);
}
/**
* @inheritdoc IEAS
*/
function getRelatedAttestationUUIDsCount(bytes32 uuid)
external
view
override
returns (uint256)
{
return _relatedAttestations[uuid].length;
}
/**
* @inheritdoc IEAS
*/
function getSchemaAttestationUUIDs(
bytes32 schema,
uint256 start,
uint256 length,
bool reverseOrder
) external view override returns (bytes32[] memory) {
return
_sliceUUIDs(
_schemaAttestations[schema],
start,
length,
reverseOrder
);
}
/**
* @inheritdoc IEAS
*/
function getSchemaAttestationUUIDsCount(bytes32 schema)
external
view
override
returns (uint256)
{
return _schemaAttestations[schema].length;
}
/**
* @dev Attests to a specific AS.
*
* @param recipient The recipient of the attestation.
* @param schema The UUID of the AS.
* @param expirationTime The expiration time of the attestation.
* @param refUUID An optional related attestation's UUID.
* @param data Additional custom data.
* @param attester The attesting account.
*
* @return The UUID of the new attestation.
*/
function _attest(
address recipient,
bytes32 schema,
uint256 expirationTime,
bytes32 refUUID,
bytes calldata data,
address attester
) private returns (bytes32) {
if (expirationTime <= block.timestamp) {
revert InvalidExpirationTime();
}
IASRegistry.ASRecord memory asRecord = _asRegistry.getAS(schema);
if (asRecord.uuid == EMPTY_UUID) {
revert InvalidSchema();
}
IASResolver resolver = asRecord.resolver;
if (address(resolver) != address(0x0)) {
if (msg.value != 0 && !resolver.isPayable()) {
revert NotPayable();
}
if (
!resolver.resolve{ value: msg.value }(
recipient,
asRecord.schema,
data,
expirationTime,
attester
)
) {
revert InvalidAttestation();
}
}
Attestation memory attestation = Attestation({
uuid: EMPTY_UUID,
schema: schema,
recipient: recipient,
attester: attester,
time: block.timestamp,
expirationTime: expirationTime,
revocationTime: 0,
refUUID: refUUID,
data: data
});
_lastUUID = _getUUID(attestation);
attestation.uuid = _lastUUID;
_receivedAttestations[recipient][schema].push(_lastUUID);
_sentAttestations[attester][schema].push(_lastUUID);
_schemaAttestations[schema].push(_lastUUID);
_db[_lastUUID] = attestation;
_attestationsCount++;
if (refUUID != 0) {
if (!isAttestationValid(refUUID)) {
revert NotFound();
}
_relatedAttestations[refUUID].push(_lastUUID);
}
emit Attested(recipient, attester, _lastUUID, schema);
return _lastUUID;
}
function getLastUUID() external view returns (bytes32) {
return _lastUUID;
}
/**
* @dev Revokes an existing attestation to a specific AS.
*
* @param uuid The UUID of the attestation to revoke.
* @param attester The attesting account.
*/
function _revoke(bytes32 uuid, address attester) private {
Attestation storage attestation = _db[uuid];
if (attestation.uuid == EMPTY_UUID) {
revert NotFound();
}
if (attestation.attester != attester) {
revert AccessDenied();
}
if (attestation.revocationTime != 0) {
revert AlreadyRevoked();
}
attestation.revocationTime = block.timestamp;
emit Revoked(attestation.recipient, attester, uuid, attestation.schema);
}
/**
* @dev Calculates a UUID for a given attestation.
*
* @param attestation The input attestation.
*
* @return Attestation UUID.
*/
function _getUUID(Attestation memory attestation)
private
view
returns (bytes32)
{
return
keccak256(
abi.encodePacked(
attestation.schema,
attestation.recipient,
attestation.attester,
attestation.time,
attestation.expirationTime,
attestation.data,
HASH_TERMINATOR,
_attestationsCount
)
);
}
/**
* @dev Returns a slice in an array of attestation UUIDs.
*
* @param uuids The array of attestation UUIDs.
* @param start The offset to start from.
* @param length The number of total members to retrieve.
* @param reverseOrder Whether the offset starts from the end and the data is returned in reverse.
*
* @return An array of attestation UUIDs.
*/
function _sliceUUIDs(
bytes32[] memory uuids,
uint256 start,
uint256 length,
bool reverseOrder
) private pure returns (bytes32[] memory) {
uint256 attestationsLength = uuids.length;
if (attestationsLength == 0) {
return new bytes32[](0);
}
if (start >= attestationsLength) {
revert InvalidOffset();
}
uint256 len = length;
if (attestationsLength < start + length) {
len = attestationsLength - start;
}
bytes32[] memory res = new bytes32[](len);
for (uint256 i = 0; i < len; ++i) {
res[i] = uuids[
reverseOrder ? attestationsLength - (start + i + 1) : start + i
];
}
return res;
}
}// SPDX-Licence-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
enum CollateralType {
ERC20,
ERC721,
ERC1155
}
struct Collateral {
CollateralType _collateralType;
uint256 _amount;
uint256 _tokenId;
address _collateralAddress;
}
interface ICollateralEscrowV1 {
/**
* @notice Deposits a collateral asset into the escrow.
* @param _collateralType The type of collateral asset to deposit (ERC721, ERC1155).
* @param _collateralAddress The address of the collateral token.i feel
* @param _amount The amount to deposit.
*/
function depositAsset(
CollateralType _collateralType,
address _collateralAddress,
uint256 _amount,
uint256 _tokenId
) external payable;
/**
* @notice Withdraws a collateral asset from the escrow.
* @param _collateralAddress The address of the collateral contract.
* @param _amount The amount to withdraw.
* @param _recipient The address to send the assets to.
*/
function withdraw(
address _collateralAddress,
uint256 _amount,
address _recipient
) external;
function withdrawDustTokens(
address _tokenAddress,
uint256 _amount,
address _recipient
) external;
function getBid() external view returns (uint256);
function initialize(uint256 _bidId) external;
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
import "./IASResolver.sol";
/**
* @title The global AS registry interface.
*/
interface IASRegistry {
/**
* @title A struct representing a record for a submitted AS (Attestation Schema).
*/
struct ASRecord {
// A unique identifier of the AS.
bytes32 uuid;
// Optional schema resolver.
IASResolver resolver;
// Auto-incrementing index for reference, assigned by the registry itself.
uint256 index;
// Custom specification of the AS (e.g., an ABI).
bytes schema;
}
/**
* @dev Triggered when a new AS has been registered
*
* @param uuid The AS UUID.
* @param index The AS index.
* @param schema The AS schema.
* @param resolver An optional AS schema resolver.
* @param attester The address of the account used to register the AS.
*/
event Registered(
bytes32 indexed uuid,
uint256 indexed index,
bytes schema,
IASResolver resolver,
address attester
);
/**
* @dev Submits and reserve a new AS
*
* @param schema The AS data schema.
* @param resolver An optional AS schema resolver.
*
* @return The UUID of the new AS.
*/
function register(bytes calldata schema, IASResolver resolver)
external
returns (bytes32);
/**
* @dev Returns an existing AS by UUID
*
* @param uuid The UUID of the AS to retrieve.
*
* @return The AS data members.
*/
function getAS(bytes32 uuid) external view returns (ASRecord memory);
/**
* @dev Returns the global counter for the total number of attestations
*
* @return The global counter for the total number of attestations.
*/
function getASCount() external view returns (uint256);
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
/**
* @title The interface of an optional AS resolver.
*/
interface IASResolver {
/**
* @dev Returns whether the resolver supports ETH transfers
*/
function isPayable() external pure returns (bool);
/**
* @dev Resolves an attestation and verifier whether its data conforms to the spec.
*
* @param recipient The recipient of the attestation.
* @param schema The AS data schema.
* @param data The actual attestation data.
* @param expirationTime The expiration time of the attestation.
* @param msgSender The sender of the original attestation message.
*
* @return Whether the data is valid according to the scheme.
*/
function resolve(
address recipient,
bytes calldata schema,
bytes calldata data,
uint256 expirationTime,
address msgSender
) external payable returns (bool);
}// SPDX-Licence-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
import { Collateral } from "./escrow/ICollateralEscrowV1.sol";
interface ICollateralManager {
/**
* @notice Checks the validity of a borrower's collateral balance.
* @param _bidId The id of the associated bid.
* @param _collateralInfo Additional information about the collateral asset.
* @return validation_ Boolean indicating if the collateral balance was validated.
*/
function commitCollateral(
uint256 _bidId,
Collateral[] calldata _collateralInfo
) external returns (bool validation_);
/**
* @notice Checks the validity of a borrower's collateral balance and commits it to a bid.
* @param _bidId The id of the associated bid.
* @param _collateralInfo Additional information about the collateral asset.
* @return validation_ Boolean indicating if the collateral balance was validated.
*/
function commitCollateral(
uint256 _bidId,
Collateral calldata _collateralInfo
) external returns (bool validation_);
function checkBalances(
address _borrowerAddress,
Collateral[] calldata _collateralInfo
) external returns (bool validated_, bool[] memory checks_);
/**
* @notice Deploys a new collateral escrow.
* @param _bidId The associated bidId of the collateral escrow.
*/
function deployAndDeposit(uint256 _bidId) external;
/**
* @notice Gets the address of a deployed escrow.
* @notice _bidId The bidId to return the escrow for.
* @return The address of the escrow.
*/
function getEscrow(uint256 _bidId) external view returns (address);
/**
* @notice Gets the collateral info for a given bid id.
* @param _bidId The bidId to return the collateral info for.
* @return The stored collateral info.
*/
function getCollateralInfo(uint256 _bidId)
external
view
returns (Collateral[] memory);
function getCollateralAmount(uint256 _bidId, address collateralAssetAddress)
external
view
returns (uint256 _amount);
/**
* @notice Withdraws deposited collateral from the created escrow of a bid.
* @param _bidId The id of the bid to withdraw collateral for.
*/
function withdraw(uint256 _bidId) external;
/**
* @notice Re-checks the validity of a borrower's collateral balance committed to a bid.
* @param _bidId The id of the associated bid.
* @return validation_ Boolean indicating if the collateral balance was validated.
*/
function revalidateCollateral(uint256 _bidId) external returns (bool);
/**
* @notice Sends the deposited collateral to a lender of a bid.
* @notice Can only be called by the protocol.
* @param _bidId The id of the liquidated bid.
*/
function lenderClaimCollateral(uint256 _bidId) external;
/**
* @notice Sends the deposited collateral to a lender of a bid.
* @notice Can only be called by the protocol.
* @param _bidId The id of the liquidated bid.
* @param _collateralRecipient the address that will receive the collateral
*/
function lenderClaimCollateralWithRecipient(uint256 _bidId, address _collateralRecipient) external;
/**
* @notice Sends the deposited collateral to a liquidator of a bid.
* @notice Can only be called by the protocol.
* @param _bidId The id of the liquidated bid.
* @param _liquidatorAddress The address of the liquidator to send the collateral to.
*/
function liquidateCollateral(uint256 _bidId, address _liquidatorAddress)
external;
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
import "./IASRegistry.sol";
import "./IEASEIP712Verifier.sol";
/**
* @title EAS - Ethereum Attestation Service interface
*/
interface IEAS {
/**
* @dev A struct representing a single attestation.
*/
struct Attestation {
// A unique identifier of the attestation.
bytes32 uuid;
// A unique identifier of the AS.
bytes32 schema;
// The recipient of the attestation.
address recipient;
// The attester/sender of the attestation.
address attester;
// The time when the attestation was created (Unix timestamp).
uint256 time;
// The time when the attestation expires (Unix timestamp).
uint256 expirationTime;
// The time when the attestation was revoked (Unix timestamp).
uint256 revocationTime;
// The UUID of the related attestation.
bytes32 refUUID;
// Custom attestation data.
bytes data;
}
/**
* @dev Triggered when an attestation has been made.
*
* @param recipient The recipient of the attestation.
* @param attester The attesting account.
* @param uuid The UUID the revoked attestation.
* @param schema The UUID of the AS.
*/
event Attested(
address indexed recipient,
address indexed attester,
bytes32 uuid,
bytes32 indexed schema
);
/**
* @dev Triggered when an attestation has been revoked.
*
* @param recipient The recipient of the attestation.
* @param attester The attesting account.
* @param schema The UUID of the AS.
* @param uuid The UUID the revoked attestation.
*/
event Revoked(
address indexed recipient,
address indexed attester,
bytes32 uuid,
bytes32 indexed schema
);
/**
* @dev Returns the address of the AS global registry.
*
* @return The address of the AS global registry.
*/
function getASRegistry() external view returns (IASRegistry);
/**
* @dev Returns the address of the EIP712 verifier used to verify signed attestations.
*
* @return The address of the EIP712 verifier used to verify signed attestations.
*/
function getEIP712Verifier() external view returns (IEASEIP712Verifier);
/**
* @dev Returns the global counter for the total number of attestations.
*
* @return The global counter for the total number of attestations.
*/
function getAttestationsCount() external view returns (uint256);
/**
* @dev Attests to a specific AS.
*
* @param recipient The recipient of the attestation.
* @param schema The UUID of the AS.
* @param expirationTime The expiration time of the attestation.
* @param refUUID An optional related attestation's UUID.
* @param data Additional custom data.
*
* @return The UUID of the new attestation.
*/
function attest(
address recipient,
bytes32 schema,
uint256 expirationTime,
bytes32 refUUID,
bytes calldata data
) external payable returns (bytes32);
/**
* @dev Attests to a specific AS using a provided EIP712 signature.
*
* @param recipient The recipient of the attestation.
* @param schema The UUID of the AS.
* @param expirationTime The expiration time of the attestation.
* @param refUUID An optional related attestation's UUID.
* @param data Additional custom data.
* @param attester The attesting account.
* @param v The recovery ID.
* @param r The x-coordinate of the nonce R.
* @param s The signature data.
*
* @return The UUID of the new attestation.
*/
function attestByDelegation(
address recipient,
bytes32 schema,
uint256 expirationTime,
bytes32 refUUID,
bytes calldata data,
address attester,
uint8 v,
bytes32 r,
bytes32 s
) external payable returns (bytes32);
/**
* @dev Revokes an existing attestation to a specific AS.
*
* @param uuid The UUID of the attestation to revoke.
*/
function revoke(bytes32 uuid) external;
/**
* @dev Attests to a specific AS using a provided EIP712 signature.
*
* @param uuid The UUID of the attestation to revoke.
* @param attester The attesting account.
* @param v The recovery ID.
* @param r The x-coordinate of the nonce R.
* @param s The signature data.
*/
function revokeByDelegation(
bytes32 uuid,
address attester,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns an existing attestation by UUID.
*
* @param uuid The UUID of the attestation to retrieve.
*
* @return The attestation data members.
*/
function getAttestation(bytes32 uuid)
external
view
returns (Attestation memory);
/**
* @dev Checks whether an attestation exists.
*
* @param uuid The UUID of the attestation to retrieve.
*
* @return Whether an attestation exists.
*/
function isAttestationValid(bytes32 uuid) external view returns (bool);
/**
* @dev Checks whether an attestation is active.
*
* @param uuid The UUID of the attestation to retrieve.
*
* @return Whether an attestation is active.
*/
function isAttestationActive(bytes32 uuid) external view returns (bool);
/**
* @dev Returns all received attestation UUIDs.
*
* @param recipient The recipient of the attestation.
* @param schema The UUID of the AS.
* @param start The offset to start from.
* @param length The number of total members to retrieve.
* @param reverseOrder Whether the offset starts from the end and the data is returned in reverse.
*
* @return An array of attestation UUIDs.
*/
function getReceivedAttestationUUIDs(
address recipient,
bytes32 schema,
uint256 start,
uint256 length,
bool reverseOrder
) external view returns (bytes32[] memory);
/**
* @dev Returns the number of received attestation UUIDs.
*
* @param recipient The recipient of the attestation.
* @param schema The UUID of the AS.
*
* @return The number of attestations.
*/
function getReceivedAttestationUUIDsCount(address recipient, bytes32 schema)
external
view
returns (uint256);
/**
* @dev Returns all sent attestation UUIDs.
*
* @param attester The attesting account.
* @param schema The UUID of the AS.
* @param start The offset to start from.
* @param length The number of total members to retrieve.
* @param reverseOrder Whether the offset starts from the end and the data is returned in reverse.
*
* @return An array of attestation UUIDs.
*/
function getSentAttestationUUIDs(
address attester,
bytes32 schema,
uint256 start,
uint256 length,
bool reverseOrder
) external view returns (bytes32[] memory);
/**
* @dev Returns the number of sent attestation UUIDs.
*
* @param recipient The recipient of the attestation.
* @param schema The UUID of the AS.
*
* @return The number of attestations.
*/
function getSentAttestationUUIDsCount(address recipient, bytes32 schema)
external
view
returns (uint256);
/**
* @dev Returns all attestations related to a specific attestation.
*
* @param uuid The UUID of the attestation to retrieve.
* @param start The offset to start from.
* @param length The number of total members to retrieve.
* @param reverseOrder Whether the offset starts from the end and the data is returned in reverse.
*
* @return An array of attestation UUIDs.
*/
function getRelatedAttestationUUIDs(
bytes32 uuid,
uint256 start,
uint256 length,
bool reverseOrder
) external view returns (bytes32[] memory);
/**
* @dev Returns the number of related attestation UUIDs.
*
* @param uuid The UUID of the attestation to retrieve.
*
* @return The number of related attestations.
*/
function getRelatedAttestationUUIDsCount(bytes32 uuid)
external
view
returns (uint256);
/**
* @dev Returns all per-schema attestation UUIDs.
*
* @param schema The UUID of the AS.
* @param start The offset to start from.
* @param length The number of total members to retrieve.
* @param reverseOrder Whether the offset starts from the end and the data is returned in reverse.
*
* @return An array of attestation UUIDs.
*/
function getSchemaAttestationUUIDs(
bytes32 schema,
uint256 start,
uint256 length,
bool reverseOrder
) external view returns (bytes32[] memory);
/**
* @dev Returns the number of per-schema attestation UUIDs.
*
* @param schema The UUID of the AS.
*
* @return The number of attestations.
*/
function getSchemaAttestationUUIDsCount(bytes32 schema)
external
view
returns (uint256);
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
/**
* @title EIP712 typed signatures verifier for EAS delegated attestations interface.
*/
interface IEASEIP712Verifier {
/**
* @dev Returns the current nonce per-account.
*
* @param account The requested accunt.
*
* @return The current nonce.
*/
function getNonce(address account) external view returns (uint256);
/**
* @dev Verifies signed attestation.
*
* @param recipient The recipient of the attestation.
* @param schema The UUID of the AS.
* @param expirationTime The expiration time of the attestation.
* @param refUUID An optional related attestation's UUID.
* @param data Additional custom data.
* @param attester The attesting account.
* @param v The recovery ID.
* @param r The x-coordinate of the nonce R.
* @param s The signature data.
*/
function attest(
address recipient,
bytes32 schema,
uint256 expirationTime,
bytes32 refUUID,
bytes calldata data,
address attester,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Verifies signed revocations.
*
* @param uuid The UUID of the attestation to revoke.
* @param attester The attesting account.
* @param v The recovery ID.
* @param r The x-coordinate of the nonce R.
* @param s The signature data.
*/
function revoke(
bytes32 uuid,
address attester,
uint8 v,
bytes32 r,
bytes32 s
) external;
}// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
interface IEscrowVault {
/**
* @notice Deposit tokens on behalf of another account
* @param account The address of the account
* @param token The address of the token
* @param amount The amount to increase the balance
*/
function deposit(address account, address token, uint256 amount) external;
function withdraw(address token, uint256 amount) external ;
}// SPDX-Licence-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;
interface ILenderCommitmentForwarder {
enum CommitmentCollateralType {
NONE, // no collateral required
ERC20,
ERC721,
ERC1155,
ERC721_ANY_ID,
ERC1155_ANY_ID,
ERC721_MERKLE_PROOF,
ERC1155_MERKLE_PROOF
}
/**
* @notice Details about a lender's capital commitment.
* @param maxPrincipal Amount of tokens being committed by the lender. Max amount that can be loaned.
* @param expiration Expiration time in seconds, when the commitment expires.
* @param maxDuration Length of time, in seconds that the lender's capital can be lent out for.
* @param minInterestRate Minimum Annual percentage to be applied for loans using the lender's capital.
* @param collateralTokenAddress The address for the token contract that must be used to provide collateral for loans for this commitment.
* @param maxPrincipalPerCollateralAmount The amount of principal that can be used for a loan per each unit of collateral, expanded additionally by principal decimals.
* @param collateralTokenType The type of asset of the collateralTokenAddress (ERC20, ERC721, or ERC1155).
* @param lender The address of the lender for this commitment.
* @param marketId The market id for this commitment.
* @param principalTokenAddress The address for the token contract that will be used to provide principal for loans of this commitment.
*/
struct Commitment {
uint256 maxPrincipal;
uint32 expiration;
uint32 maxDuration;
uint16 minInterestRate;
address collateralTokenAddress;
uint256 collateralTokenId; //we use this for the MerkleRootHash for type ERC721_MERKLE_PROOF
uint256 maxPrincipalPerCollateralAmount;
CommitmentCollateralType collateralTokenType;
address lender;
uint256 marketId;
address principalTokenAddress;
}
// mapping(uint256 => Commitment) public commitments;
function getCommitmentMarketId(uint256 _commitmentId)
external
view
returns (uint256);
function getCommitmentLender(uint256 _commitmentId)
external
view
returns (address);
function getCommitmentAcceptedPrincipal(uint256 _commitmentId)
external
view
returns (uint256);
function getCommitmentMaxPrincipal(uint256 _commitmentId)
external
view
returns (uint256);
function createCommitment(
Commitment calldata _commitment,
address[] calldata _borrowerAddressList
) external returns (uint256);
function acceptCommitmentWithRecipient(
uint256 _commitmentId,
uint256 _principalAmount,
uint256 _collateralAmount,
uint256 _collateralTokenId,
address _collateralTokenAddress,
address _recipient,
uint16 _interestRate,
uint32 _loanDuration
) external returns (uint256 bidId_);
function acceptCommitmentWithRecipientAndProof(
uint256 _commitmentId,
uint256 _principalAmount,
uint256 _collateralAmount,
uint256 _collateralTokenId,
address _collateralTokenAddress,
address _recipient,
uint16 _interestRate,
uint32 _loanDuration,
bytes32[] calldata _merkleProof
) external returns (uint256 bidId_);
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
import "@openzeppelin/contracts-upgradeable/token/ERC721/IERC721Upgradeable.sol";
abstract contract ILenderManager is IERC721Upgradeable {
/**
* @notice Registers a new active lender for a loan, minting the nft.
* @param _bidId The id for the loan to set.
* @param _newLender The address of the new active lender.
*/
function registerLoan(uint256 _bidId, address _newLender) external virtual;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../EAS/TellerAS.sol";
import { PaymentType, PaymentCycleType } from "../libraries/V2Calculations.sol";
interface IMarketRegistry {
function initialize(TellerAS tellerAs) external;
function isVerifiedLender(uint256 _marketId, address _lender)
external
view
returns (bool, bytes32);
function isMarketOpen(uint256 _marketId) external view returns (bool);
function isMarketClosed(uint256 _marketId) external view returns (bool);
function isVerifiedBorrower(uint256 _marketId, address _borrower)
external
view
returns (bool, bytes32);
function getMarketOwner(uint256 _marketId) external view returns (address);
function getMarketFeeRecipient(uint256 _marketId)
external
view
returns (address);
function getMarketURI(uint256 _marketId)
external
view
returns (string memory);
function getPaymentCycle(uint256 _marketId)
external
view
returns (uint32, PaymentCycleType);
function getPaymentDefaultDuration(uint256 _marketId)
external
view
returns (uint32);
function getBidExpirationTime(uint256 _marketId)
external
view
returns (uint32);
function getMarketplaceFee(uint256 _marketId)
external
view
returns (uint16);
function getPaymentType(uint256 _marketId)
external
view
returns (PaymentType);
function createMarket(
address _initialOwner,
uint32 _paymentCycleDuration,
uint32 _paymentDefaultDuration,
uint32 _bidExpirationTime,
uint16 _feePercent,
bool _requireLenderAttestation,
bool _requireBorrowerAttestation,
PaymentType _paymentType,
PaymentCycleType _paymentCycleType,
string calldata _uri
) external returns (uint256 marketId_);
function createMarket(
address _initialOwner,
uint32 _paymentCycleDuration,
uint32 _paymentDefaultDuration,
uint32 _bidExpirationTime,
uint16 _feePercent,
bool _requireLenderAttestation,
bool _requireBorrowerAttestation,
string calldata _uri
) external returns (uint256 marketId_);
function closeMarket(uint256 _marketId) external;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IProtocolFee {
function protocolFee() external view returns (uint16);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
enum RepMark {
Good,
Delinquent,
Default
}
interface IReputationManager {
function initialize(address protocolAddress) external;
function getDelinquentLoanIds(address _account)
external
returns (uint256[] memory);
function getDefaultedLoanIds(address _account)
external
returns (uint256[] memory);
function getCurrentDelinquentLoanIds(address _account)
external
returns (uint256[] memory);
function getCurrentDefaultLoanIds(address _account)
external
returns (uint256[] memory);
function updateAccountReputation(address _account) external;
function updateAccountReputation(address _account, uint256 _bidId)
external
returns (RepMark);
}pragma solidity >=0.8.0 <0.9.0;
interface ISmartCommitmentForwarder {
function acceptSmartCommitmentWithRecipient(
address _smartCommitmentAddress,
uint256 _principalAmount,
uint256 _collateralAmount,
uint256 _collateralTokenId,
address _collateralTokenAddress,
address _recipient,
uint16 _interestRate,
uint32 _loanDuration
) external returns (uint256 bidId) ;
function setLiquidationProtocolFeePercent(uint256 _percent)
external;
function getLiquidationProtocolFeePercent()
external view returns (uint256) ;
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface ISwapRolloverLoan {
struct RolloverCallbackArgs {
address lenderCommitmentForwarder;
uint256 loanId;
address borrower;
uint256 borrowerAmount;
address rewardRecipient;
uint256 rewardAmount;
bytes acceptCommitmentArgs;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import { Payment, BidState } from "../TellerV2Storage.sol";
import { Collateral } from "./escrow/ICollateralEscrowV1.sol";
interface ITellerV2 {
/**
* @notice Function for a borrower to create a bid for a loan.
* @param _lendingToken The lending token asset requested to be borrowed.
* @param _marketplaceId The unique id of the marketplace for the bid.
* @param _principal The principal amount of the loan bid.
* @param _duration The recurrent length of time before which a payment is due.
* @param _APR The proposed interest rate for the loan bid.
* @param _metadataURI The URI for additional borrower loan information as part of loan bid.
* @param _receiver The address where the loan amount will be sent to.
*/
function submitBid(
address _lendingToken,
uint256 _marketplaceId,
uint256 _principal,
uint32 _duration,
uint16 _APR,
string calldata _metadataURI,
address _receiver
) external returns (uint256 bidId_);
/**
* @notice Function for a borrower to create a bid for a loan with Collateral.
* @param _lendingToken The lending token asset requested to be borrowed.
* @param _marketplaceId The unique id of the marketplace for the bid.
* @param _principal The principal amount of the loan bid.
* @param _duration The recurrent length of time before which a payment is due.
* @param _APR The proposed interest rate for the loan bid.
* @param _metadataURI The URI for additional borrower loan information as part of loan bid.
* @param _receiver The address where the loan amount will be sent to.
* @param _collateralInfo Additional information about the collateral asset.
*/
function submitBid(
address _lendingToken,
uint256 _marketplaceId,
uint256 _principal,
uint32 _duration,
uint16 _APR,
string calldata _metadataURI,
address _receiver,
Collateral[] calldata _collateralInfo
) external returns (uint256 bidId_);
/**
* @notice Function for a lender to accept a proposed loan bid.
* @param _bidId The id of the loan bid to accept.
*/
function lenderAcceptBid(uint256 _bidId)
external
returns (
uint256 amountToProtocol,
uint256 amountToMarketplace,
uint256 amountToBorrower
);
/**
* @notice Function for users to make the minimum amount due for an active loan.
* @param _bidId The id of the loan to make the payment towards.
*/
function repayLoanMinimum(uint256 _bidId) external;
/**
* @notice Function for users to repay an active loan in full.
* @param _bidId The id of the loan to make the payment towards.
*/
function repayLoanFull(uint256 _bidId) external;
/**
* @notice Function for users to make a payment towards an active loan.
* @param _bidId The id of the loan to make the payment towards.
* @param _amount The amount of the payment.
*/
function repayLoan(uint256 _bidId, uint256 _amount) external;
/**
* @notice Checks to see if a borrower is delinquent.
* @param _bidId The id of the loan bid to check for.
*/
function isLoanDefaulted(uint256 _bidId) external view returns (bool);
/**
* @notice Checks to see if a loan was delinquent for longer than liquidation delay.
* @param _bidId The id of the loan bid to check for.
*/
function isLoanLiquidateable(uint256 _bidId) external view returns (bool);
/**
* @notice Checks to see if a borrower is delinquent.
* @param _bidId The id of the loan bid to check for.
*/
function isPaymentLate(uint256 _bidId) external view returns (bool);
function getBidState(uint256 _bidId) external view returns (BidState);
function getBorrowerActiveLoanIds(address _borrower)
external
view
returns (uint256[] memory);
/**
* @notice Returns the borrower address for a given bid.
* @param _bidId The id of the bid/loan to get the borrower for.
* @return borrower_ The address of the borrower associated with the bid.
*/
function getLoanBorrower(uint256 _bidId)
external
view
returns (address borrower_);
/**
* @notice Returns the lender address for a given bid.
* @param _bidId The id of the bid/loan to get the lender for.
* @return lender_ The address of the lender associated with the bid.
*/
function getLoanLender(uint256 _bidId)
external
view
returns (address lender_);
function getLoanLendingToken(uint256 _bidId)
external
view
returns (address token_);
function getLoanMarketId(uint256 _bidId) external view returns (uint256);
function getLoanSummary(uint256 _bidId)
external
view
returns (
address borrower,
address lender,
uint256 marketId,
address principalTokenAddress,
uint256 principalAmount,
uint32 acceptedTimestamp,
uint32 lastRepaidTimestamp,
BidState bidState
);
function calculateAmountOwed(uint256 _bidId, uint256 _timestamp)
external
view
returns (Payment memory owed);
function calculateAmountDue(uint256 _bidId, uint256 _timestamp)
external
view
returns (Payment memory due);
function lenderCloseLoan(uint256 _bidId) external;
function lenderCloseLoanWithRecipient(uint256 _bidId, address _recipient)
external;
function liquidateLoanFull(uint256 _bidId) external;
function liquidateLoanFullWithRecipient(uint256 _bidId, address _recipient)
external;
function getLoanDefaultTimestamp(uint256 _bidId)
external
view
returns (uint256);
function getEscrowVault() external view returns(address);
function getProtocolFeeRecipient () external view returns(address);
// function isPauser(address _account) external view returns(bool);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface ITellerV2Storage {
function marketRegistry() external view returns (address);
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// Contracts
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
// Interfaces
import "../../../interfaces/ITellerV2.sol";
import "../../../interfaces/IProtocolFee.sol";
import "../../../interfaces/ITellerV2Storage.sol";
import "../../../interfaces/IMarketRegistry.sol";
import "../../../interfaces/ILenderCommitmentForwarder.sol";
import "../../../interfaces/ISmartCommitmentForwarder.sol";
import "../../../interfaces/ISwapRolloverLoan.sol";
import "../../../libraries/NumbersLib.sol";
import '../../../libraries/uniswap/periphery/base/PeripheryPayments.sol';
import '../../../libraries/uniswap/periphery/base/PeripheryImmutableState.sol';
import '../../../libraries/uniswap/periphery/libraries/PoolAddress.sol';
import '../../../libraries/uniswap/periphery/libraries/CallbackValidation.sol';
import '../../../libraries/uniswap/periphery/libraries/TransferHelper.sol';
import '../../../libraries/uniswap/periphery/interfaces/ISwapRouter.sol';
import '../../../libraries/uniswap/core/interfaces/IUniswapV3Factory.sol';
import '../../../libraries/uniswap/core/libraries/LowGasSafeMath.sol';
import '../../../libraries/uniswap/core/interfaces/callback/IUniswapV3FlashCallback.sol';
contract SwapRolloverLoan_G1 is IUniswapV3FlashCallback, PeripheryPayments {
using AddressUpgradeable for address;
using NumbersLib for uint256;
using LowGasSafeMath for uint256;
using LowGasSafeMath for int256;
/// @custom:oz-upgrades-unsafe-allow state-variable-immutable
ITellerV2 public immutable TELLER_V2;
event RolloverLoanComplete(
address borrower,
uint256 originalLoanId,
uint256 newLoanId,
uint256 fundsRemaining
);
event RolloverWithReferral(
uint256 newLoanId,
address flashToken,
address rewardRecipient,
uint256 rewardAmount,
uint256 atmId
);
struct AcceptCommitmentArgs {
uint256 commitmentId;
address smartCommitmentAddress; //if this is not address(0), we will use this ! leave empty if not used.
uint256 principalAmount;
uint256 collateralAmount;
uint256 collateralTokenId;
address collateralTokenAddress;
uint16 interestRate;
uint32 loanDuration;
bytes32[] merkleProof; //empty array if not used
}
struct FlashSwapArgs {
address token0;
address token1;
uint24 fee;
uint256 flashAmount;
bool borrowToken1; // if false, borrow token 0
}
struct RolloverCallbackArgs {
address lenderCommitmentForwarder;
uint256 loanId;
address borrower;
uint256 borrowerAmount;
uint256 atmId;
address rewardRecipient;
uint256 rewardAmount;
bytes acceptCommitmentArgs;
bytes flashSwapArgs;
}
/**
*
* @notice Initializes the FlashRolloverLoan with necessary contract addresses.
*
* @dev Using a custom OpenZeppelin upgrades tag. Ensure the constructor logic is safe for upgrades.
*
* @param _tellerV2 The address of the TellerV2 contract.
* @param _factory The address of the UniswapV3 Factory contract to help with callback validation.
* @param _WETH9 The address of the WETH Contract as this is instrumental to core uniswap logic.
*/
/// @custom:oz-upgrades-unsafe-allow constructor
constructor(
address _tellerV2,
address _factory,
address _WETH9
) PeripheryImmutableState(_factory, _WETH9) {
TELLER_V2 = ITellerV2(_tellerV2);
}
/**
*
* @notice Allows the borrower to rollover their existing loan using a flash loan mechanism.
* The borrower might also provide an additional amount during the rollover.
*
* @dev The function first verifies that the caller is the borrower of the loan.
* It then optionally transfers the additional amount specified by the borrower.
* A flash loan is then taken from the pool to facilitate the rollover and
* a callback is executed for further operations.
*
* @param _loanId Identifier of the existing loan to be rolled over.
* @param _borrowerAmount Additional amount that the borrower may want to add during rollover.
* @param _acceptCommitmentArgs Commitment arguments that might be necessary for internal operations.
*
*/
function rolloverLoanWithFlashSwap(
address _lenderCommitmentForwarder,
uint256 _loanId,
uint256 _borrowerAmount, //an additional amount borrower may have to add
FlashSwapArgs calldata _flashSwapArgs,
AcceptCommitmentArgs calldata _acceptCommitmentArgs
) external {
address borrower = TELLER_V2.getLoanBorrower(_loanId);
require(borrower == msg.sender, "Must be borrower");
{
// Get lending token and balance before
address lendingToken = TELLER_V2.getLoanLendingToken(_loanId);
if (_borrowerAmount > 0) {
TransferHelper.safeTransferFrom(lendingToken, borrower, address(this), _borrowerAmount);
}
}
IUniswapV3Pool(
getUniswapPoolAddress (
_flashSwapArgs.token0,
_flashSwapArgs.token1,
_flashSwapArgs.fee
)
).flash(
address(this),
_flashSwapArgs.borrowToken1 ? 0 : _flashSwapArgs.flashAmount,
_flashSwapArgs.borrowToken1 ? _flashSwapArgs.flashAmount : 0,
abi.encode(
RolloverCallbackArgs({
lenderCommitmentForwarder : _lenderCommitmentForwarder,
loanId: _loanId,
borrower: borrower,
borrowerAmount: _borrowerAmount,
rewardRecipient: address(0),
rewardAmount: 0,
atmId: 0,
acceptCommitmentArgs: abi.encode(_acceptCommitmentArgs),
flashSwapArgs: abi.encode( _flashSwapArgs)
})
)
);
}
function rolloverLoanWithFlashSwapRewards(
address _lenderCommitmentForwarder,
uint256 _loanId,
uint256 _borrowerAmount, //an additional amount borrower may have to add
uint256 _rewardAmount,
address _rewardRecipient,
uint256 _atmId, //optional, just for analytics
FlashSwapArgs calldata _flashSwapArgs,
AcceptCommitmentArgs calldata _acceptCommitmentArgs
) external {
address borrower = TELLER_V2.getLoanBorrower(_loanId);
require(borrower == msg.sender, "Must be borrower");
{
// Get lending token and balance before
address lendingToken = TELLER_V2.getLoanLendingToken(_loanId);
require(
_rewardAmount <= _flashSwapArgs.flashAmount / 10 ,
"Excessive reward amount" );
if (_borrowerAmount > 0) {
TransferHelper.safeTransferFrom(lendingToken, borrower, address(this), _borrowerAmount);
}
}
IUniswapV3Pool(
getUniswapPoolAddress (
_flashSwapArgs.token0,
_flashSwapArgs.token1,
_flashSwapArgs.fee
)
).flash(
address(this),
_flashSwapArgs.borrowToken1 ? 0 : _flashSwapArgs.flashAmount,
_flashSwapArgs.borrowToken1 ? _flashSwapArgs.flashAmount : 0,
abi.encode(
RolloverCallbackArgs({
lenderCommitmentForwarder : _lenderCommitmentForwarder,
loanId: _loanId,
borrower: borrower,
borrowerAmount: _borrowerAmount, // need this ?
rewardRecipient: _rewardRecipient,
rewardAmount: _rewardAmount,
atmId: _atmId,
acceptCommitmentArgs: abi.encode(_acceptCommitmentArgs),
flashSwapArgs: abi.encode( _flashSwapArgs)
})
)
);
}
/*
@dev _verifyFlashCallback ensures that only the uniswap pool can call this method
*/
function uniswapV3FlashCallback(
uint256 fee0,
uint256 fee1,
bytes calldata data
) external override {
RolloverCallbackArgs memory _rolloverArgs = abi.decode(data, (RolloverCallbackArgs));
AcceptCommitmentArgs memory acceptCommitmentArgs = abi.decode(
_rolloverArgs.acceptCommitmentArgs,
(AcceptCommitmentArgs)
);
FlashSwapArgs memory flashSwapArgs = abi.decode(
_rolloverArgs.flashSwapArgs,
(FlashSwapArgs)
);
PoolAddress.PoolKey memory poolKey =
PoolAddress.PoolKey({token0: flashSwapArgs.token0, token1: flashSwapArgs.token1, fee: flashSwapArgs.fee});
_verifyFlashCallback( factory , poolKey );
address flashToken = flashSwapArgs.borrowToken1 ? flashSwapArgs.token1: flashSwapArgs.token0 ;
uint256 flashFee = flashSwapArgs.borrowToken1 ? fee1: fee0 ;
uint256 repaymentAmount = _repayLoanFull(
_rolloverArgs.loanId,
flashToken,
flashSwapArgs.flashAmount
);
// Accept commitment and receive funds to this contract
(uint256 newLoanId, uint256 acceptCommitmentAmount) = _acceptCommitment(
_rolloverArgs.lenderCommitmentForwarder,
_rolloverArgs.borrower,
flashToken,
acceptCommitmentArgs
);
uint256 amountOwedToPool = LowGasSafeMath.add(flashSwapArgs.flashAmount, flashFee) ;
// what is the point of this ??
// TransferHelper.safeApprove(flashToken, address(this), amountOwedToPool);
// msg.sender is the uniswap pool
if (amountOwedToPool > 0) pay(flashToken, address(this), msg.sender, amountOwedToPool);
// send any dust to the borrower
uint256 fundsRemaining = flashSwapArgs.flashAmount +
acceptCommitmentAmount +
_rolloverArgs.borrowerAmount -
repaymentAmount -
amountOwedToPool;
if (fundsRemaining > 0) {
if (_rolloverArgs.rewardAmount > 0){
fundsRemaining -= _rolloverArgs.rewardAmount;
TransferHelper.safeTransfer(flashToken, _rolloverArgs.rewardRecipient, _rolloverArgs.rewardAmount) ;
emit RolloverWithReferral( newLoanId, flashToken, _rolloverArgs.rewardRecipient, _rolloverArgs.rewardAmount, _rolloverArgs.atmId ) ;
}
TransferHelper.safeTransfer(flashToken, _rolloverArgs.borrower, fundsRemaining) ;
}
emit RolloverLoanComplete(
_rolloverArgs.borrower,
_rolloverArgs.loanId,
newLoanId,
fundsRemaining
);
}
function _verifyFlashCallback(
address _factory,
PoolAddress.PoolKey memory _poolKey
) internal virtual {
CallbackValidation.verifyCallback(_factory, _poolKey); //verifies that only uniswap contract can call this fn
}
function getUniswapPoolAddress(
address token0,
address token1,
uint24 fee
) public view virtual returns (address) {
return IUniswapV3Factory(factory).getPool(token0,token1,fee);
}
/**
*
*
* @notice Internal function that repays a loan in full on behalf of this contract.
*
* @dev The function first calculates the funds held by the contract before repayment, then approves
* the repayment amount to the TellerV2 contract and finally repays the loan in full.
*
* @param _bidId Identifier of the loan to be repaid.
* @param _principalToken The token in which the loan was originated.
* @param _repayAmount The amount to be repaid.
*
* @return repayAmount_ The actual amount that was used for repayment.
*/
function _repayLoanFull(
uint256 _bidId,
address _principalToken,
uint256 _repayAmount
) internal returns (uint256 repayAmount_) {
uint256 fundsBeforeRepayment = IERC20Upgradeable(_principalToken)
.balanceOf(address(this));
IERC20Upgradeable(_principalToken).approve(
address(TELLER_V2),
_repayAmount
);
TELLER_V2.repayLoanFull(_bidId);
uint256 fundsAfterRepayment = IERC20Upgradeable(_principalToken)
.balanceOf(address(this));
repayAmount_ = fundsBeforeRepayment - fundsAfterRepayment;
}
/**
*
*
* @notice Accepts a loan commitment using either a Merkle proof or standard method.
*
* @dev The function first checks if a Merkle proof is provided, based on which it calls the relevant
* `acceptCommitment` function in the LenderCommitmentForwarder contract.
*
* @param borrower The address of the borrower for whom the commitment is being accepted.
* @param principalToken The token in which the loan is being accepted.
* @param _commitmentArgs The arguments necessary for accepting the commitment.
*
* @return bidId_ Identifier of the accepted loan.
* @return acceptCommitmentAmount_ The amount received from accepting the commitment.
*/
function _acceptCommitment(
address lenderCommitmentForwarder,
address borrower,
address principalToken,
AcceptCommitmentArgs memory _commitmentArgs
)
internal
virtual
returns (uint256 bidId_, uint256 acceptCommitmentAmount_)
{
uint256 fundsBeforeAcceptCommitment = IERC20Upgradeable(principalToken)
.balanceOf(address(this));
if (_commitmentArgs.smartCommitmentAddress != address(0)) {
bytes memory responseData = address(lenderCommitmentForwarder)
.functionCall(
abi.encodePacked(
abi.encodeWithSelector(
ISmartCommitmentForwarder
.acceptSmartCommitmentWithRecipient
.selector,
_commitmentArgs.smartCommitmentAddress,
_commitmentArgs.principalAmount,
_commitmentArgs.collateralAmount,
_commitmentArgs.collateralTokenId,
_commitmentArgs.collateralTokenAddress,
address(this),
_commitmentArgs.interestRate,
_commitmentArgs.loanDuration
),
borrower //cant be msg.sender because of the flash flow
)
);
(bidId_) = abi.decode(responseData, (uint256));
}else {
bool usingMerkleProof = _commitmentArgs.merkleProof.length > 0;
if (usingMerkleProof) {
bytes memory responseData = address(lenderCommitmentForwarder)
.functionCall(
abi.encodePacked(
abi.encodeWithSelector(
ILenderCommitmentForwarder
.acceptCommitmentWithRecipientAndProof
.selector,
_commitmentArgs.commitmentId,
_commitmentArgs.principalAmount,
_commitmentArgs.collateralAmount,
_commitmentArgs.collateralTokenId,
_commitmentArgs.collateralTokenAddress,
address(this),
_commitmentArgs.interestRate,
_commitmentArgs.loanDuration,
_commitmentArgs.merkleProof
),
borrower //cant be msg.sender because of the flash flow
)
);
(bidId_) = abi.decode(responseData, (uint256));
} else {
bytes memory responseData = address(lenderCommitmentForwarder)
.functionCall(
abi.encodePacked(
abi.encodeWithSelector(
ILenderCommitmentForwarder
.acceptCommitmentWithRecipient
.selector,
_commitmentArgs.commitmentId,
_commitmentArgs.principalAmount,
_commitmentArgs.collateralAmount,
_commitmentArgs.collateralTokenId,
_commitmentArgs.collateralTokenAddress,
address(this),
_commitmentArgs.interestRate,
_commitmentArgs.loanDuration
),
borrower //cant be msg.sender because of the flash flow
)
);
(bidId_) = abi.decode(responseData, (uint256));
}
}
uint256 fundsAfterAcceptCommitment = IERC20Upgradeable(principalToken)
.balanceOf(address(this));
acceptCommitmentAmount_ =
fundsAfterAcceptCommitment -
fundsBeforeAcceptCommitment;
}
/**
* @notice Calculates the amount for loan rollover, determining if the borrower owes or receives funds.
*/
function calculateRolloverAmount(
uint16 marketFeePct,
uint16 protocolFeePct,
uint256 _loanId,
uint256 principalAmount,
uint256 _rewardAmount,
uint16 _flashloanFeePct, // 3000 means 0.3% in uniswap terms
uint256 _timestamp
) external view returns (uint256 _flashAmount, int256 _borrowerAmount) {
Payment memory repayAmountOwed = TELLER_V2.calculateAmountOwed(
_loanId,
_timestamp
);
uint256 commitmentPrincipalRequested = principalAmount; // _commitmentArgs.principalAmount;
uint256 amountToMarketplace = commitmentPrincipalRequested.percent(
marketFeePct
);
uint256 amountToProtocol = commitmentPrincipalRequested.percent(
protocolFeePct
);
uint256 commitmentPrincipalReceived = commitmentPrincipalRequested -
amountToMarketplace -
amountToProtocol;
// by default, we will flash exactly what we need to do relayLoanFull
uint256 repayFullAmount = repayAmountOwed.principal +
repayAmountOwed.interest;
_flashAmount = repayFullAmount;
uint256 _flashLoanFee = _flashAmount.percent(_flashloanFeePct, 4 );
_borrowerAmount =
int256(commitmentPrincipalReceived) -
int256(repayFullAmount) -
int256(_flashLoanFee) -
int256(_rewardAmount);
}
function getMarketIdForCommitment(
address _lenderCommitmentForwarder,
uint256 _commitmentId
) external view returns (uint256) {
return _getMarketIdForCommitment(_lenderCommitmentForwarder, _commitmentId);
}
function getMarketFeePct(
uint256 _marketId
) external view returns (uint16) {
return _getMarketFeePct(_marketId);
}
/**
* @notice Retrieves the market ID associated with a given commitment.
* @param _commitmentId The ID of the commitment for which to fetch the market ID.
* @return The ID of the market associated with the provided commitment.
*/
function _getMarketIdForCommitment(address _lenderCommitmentForwarder, uint256 _commitmentId)
internal
view
returns (uint256)
{
return ILenderCommitmentForwarder(_lenderCommitmentForwarder).getCommitmentMarketId(_commitmentId);
}
/**
* @notice Fetches the marketplace fee percentage for a given market ID.
* @param _marketId The ID of the market for which to fetch the fee percentage.
* @return The marketplace fee percentage for the provided market ID.
*/
function _getMarketFeePct(uint256 _marketId)
internal
view
returns (uint16)
{
address _marketRegistryAddress = ITellerV2Storage(address(TELLER_V2))
.marketRegistry();
return
IMarketRegistry(_marketRegistryAddress).getMarketplaceFee(
_marketId
);
}
}// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.9.0;
// ----------------------------------------------------------------------------
// BokkyPooBah's DateTime Library v1.01
//
// A gas-efficient Solidity date and time library
//
// https://github.com/bokkypoobah/BokkyPooBahsDateTimeLibrary
//
// Tested date range 1970/01/01 to 2345/12/31
//
// Conventions:
// Unit | Range | Notes
// :-------- |:-------------:|:-----
// timestamp | >= 0 | Unix timestamp, number of seconds since 1970/01/01 00:00:00 UTC
// year | 1970 ... 2345 |
// month | 1 ... 12 |
// day | 1 ... 31 |
// hour | 0 ... 23 |
// minute | 0 ... 59 |
// second | 0 ... 59 |
// dayOfWeek | 1 ... 7 | 1 = Monday, ..., 7 = Sunday
//
//
// Enjoy. (c) BokkyPooBah / Bok Consulting Pty Ltd 2018-2019. The MIT Licence.
// ----------------------------------------------------------------------------
library BokkyPooBahsDateTimeLibrary {
uint constant SECONDS_PER_DAY = 24 * 60 * 60;
uint constant SECONDS_PER_HOUR = 60 * 60;
uint constant SECONDS_PER_MINUTE = 60;
int constant OFFSET19700101 = 2440588;
uint constant DOW_MON = 1;
uint constant DOW_TUE = 2;
uint constant DOW_WED = 3;
uint constant DOW_THU = 4;
uint constant DOW_FRI = 5;
uint constant DOW_SAT = 6;
uint constant DOW_SUN = 7;
// ------------------------------------------------------------------------
// Calculate the number of days from 1970/01/01 to year/month/day using
// the date conversion algorithm from
// https://aa.usno.navy.mil/faq/JD_formula.html
// and subtracting the offset 2440588 so that 1970/01/01 is day 0
//
// days = day
// - 32075
// + 1461 * (year + 4800 + (month - 14) / 12) / 4
// + 367 * (month - 2 - (month - 14) / 12 * 12) / 12
// - 3 * ((year + 4900 + (month - 14) / 12) / 100) / 4
// - offset
// ------------------------------------------------------------------------
function _daysFromDate(uint year, uint month, uint day)
internal
pure
returns (uint _days)
{
require(year >= 1970);
int _year = int(year);
int _month = int(month);
int _day = int(day);
int __days = _day -
32075 +
(1461 * (_year + 4800 + (_month - 14) / 12)) /
4 +
(367 * (_month - 2 - ((_month - 14) / 12) * 12)) /
12 -
(3 * ((_year + 4900 + (_month - 14) / 12) / 100)) /
4 -
OFFSET19700101;
_days = uint(__days);
}
// ------------------------------------------------------------------------
// Calculate year/month/day from the number of days since 1970/01/01 using
// the date conversion algorithm from
// http://aa.usno.navy.mil/faq/docs/JD_Formula.php
// and adding the offset 2440588 so that 1970/01/01 is day 0
//
// int L = days + 68569 + offset
// int N = 4 * L / 146097
// L = L - (146097 * N + 3) / 4
// year = 4000 * (L + 1) / 1461001
// L = L - 1461 * year / 4 + 31
// month = 80 * L / 2447
// dd = L - 2447 * month / 80
// L = month / 11
// month = month + 2 - 12 * L
// year = 100 * (N - 49) + year + L
// ------------------------------------------------------------------------
function _daysToDate(uint _days)
internal
pure
returns (uint year, uint month, uint day)
{
int __days = int(_days);
int L = __days + 68569 + OFFSET19700101;
int N = (4 * L) / 146097;
L = L - (146097 * N + 3) / 4;
int _year = (4000 * (L + 1)) / 1461001;
L = L - (1461 * _year) / 4 + 31;
int _month = (80 * L) / 2447;
int _day = L - (2447 * _month) / 80;
L = _month / 11;
_month = _month + 2 - 12 * L;
_year = 100 * (N - 49) + _year + L;
year = uint(_year);
month = uint(_month);
day = uint(_day);
}
function timestampFromDate(uint year, uint month, uint day)
internal
pure
returns (uint timestamp)
{
timestamp = _daysFromDate(year, month, day) * SECONDS_PER_DAY;
}
function timestampFromDateTime(
uint year,
uint month,
uint day,
uint hour,
uint minute,
uint second
) internal pure returns (uint timestamp) {
timestamp =
_daysFromDate(year, month, day) *
SECONDS_PER_DAY +
hour *
SECONDS_PER_HOUR +
minute *
SECONDS_PER_MINUTE +
second;
}
function timestampToDate(uint timestamp)
internal
pure
returns (uint year, uint month, uint day)
{
(year, month, day) = _daysToDate(timestamp / SECONDS_PER_DAY);
}
function timestampToDateTime(uint timestamp)
internal
pure
returns (
uint year,
uint month,
uint day,
uint hour,
uint minute,
uint second
)
{
(year, month, day) = _daysToDate(timestamp / SECONDS_PER_DAY);
uint secs = timestamp % SECONDS_PER_DAY;
hour = secs / SECONDS_PER_HOUR;
secs = secs % SECONDS_PER_HOUR;
minute = secs / SECONDS_PER_MINUTE;
second = secs % SECONDS_PER_MINUTE;
}
function isValidDate(uint year, uint month, uint day)
internal
pure
returns (bool valid)
{
if (year >= 1970 && month > 0 && month <= 12) {
uint daysInMonth = _getDaysInMonth(year, month);
if (day > 0 && day <= daysInMonth) {
valid = true;
}
}
}
function isValidDateTime(
uint year,
uint month,
uint day,
uint hour,
uint minute,
uint second
) internal pure returns (bool valid) {
if (isValidDate(year, month, day)) {
if (hour < 24 && minute < 60 && second < 60) {
valid = true;
}
}
}
function isLeapYear(uint timestamp) internal pure returns (bool leapYear) {
(uint year, , ) = _daysToDate(timestamp / SECONDS_PER_DAY);
leapYear = _isLeapYear(year);
}
function _isLeapYear(uint year) internal pure returns (bool leapYear) {
leapYear = ((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0);
}
function isWeekDay(uint timestamp) internal pure returns (bool weekDay) {
weekDay = getDayOfWeek(timestamp) <= DOW_FRI;
}
function isWeekEnd(uint timestamp) internal pure returns (bool weekEnd) {
weekEnd = getDayOfWeek(timestamp) >= DOW_SAT;
}
function getDaysInMonth(uint timestamp)
internal
pure
returns (uint daysInMonth)
{
(uint year, uint month, ) = _daysToDate(timestamp / SECONDS_PER_DAY);
daysInMonth = _getDaysInMonth(year, month);
}
function _getDaysInMonth(uint year, uint month)
internal
pure
returns (uint daysInMonth)
{
if (
month == 1 ||
month == 3 ||
month == 5 ||
month == 7 ||
month == 8 ||
month == 10 ||
month == 12
) {
daysInMonth = 31;
} else if (month != 2) {
daysInMonth = 30;
} else {
daysInMonth = _isLeapYear(year) ? 29 : 28;
}
}
// 1 = Monday, 7 = Sunday
function getDayOfWeek(uint timestamp)
internal
pure
returns (uint dayOfWeek)
{
uint _days = timestamp / SECONDS_PER_DAY;
dayOfWeek = ((_days + 3) % 7) + 1;
}
function getYear(uint timestamp) internal pure returns (uint year) {
(year, , ) = _daysToDate(timestamp / SECONDS_PER_DAY);
}
function getMonth(uint timestamp) internal pure returns (uint month) {
(, month, ) = _daysToDate(timestamp / SECONDS_PER_DAY);
}
function getDay(uint timestamp) internal pure returns (uint day) {
(, , day) = _daysToDate(timestamp / SECONDS_PER_DAY);
}
function getHour(uint timestamp) internal pure returns (uint hour) {
uint secs = timestamp % SECONDS_PER_DAY;
hour = secs / SECONDS_PER_HOUR;
}
function getMinute(uint timestamp) internal pure returns (uint minute) {
uint secs = timestamp % SECONDS_PER_HOUR;
minute = secs / SECONDS_PER_MINUTE;
}
function getSecond(uint timestamp) internal pure returns (uint second) {
second = timestamp % SECONDS_PER_MINUTE;
}
function addYears(uint timestamp, uint _years)
internal
pure
returns (uint newTimestamp)
{
(uint year, uint month, uint day) = _daysToDate(
timestamp / SECONDS_PER_DAY
);
year += _years;
uint daysInMonth = _getDaysInMonth(year, month);
if (day > daysInMonth) {
day = daysInMonth;
}
newTimestamp =
_daysFromDate(year, month, day) *
SECONDS_PER_DAY +
(timestamp % SECONDS_PER_DAY);
require(newTimestamp >= timestamp);
}
function addMonths(uint timestamp, uint _months)
internal
pure
returns (uint newTimestamp)
{
(uint year, uint month, uint day) = _daysToDate(
timestamp / SECONDS_PER_DAY
);
month += _months;
year += (month - 1) / 12;
month = ((month - 1) % 12) + 1;
uint daysInMonth = _getDaysInMonth(year, month);
if (day > daysInMonth) {
day = daysInMonth;
}
newTimestamp =
_daysFromDate(year, month, day) *
SECONDS_PER_DAY +
(timestamp % SECONDS_PER_DAY);
require(newTimestamp >= timestamp);
}
function addDays(uint timestamp, uint _days)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp + _days * SECONDS_PER_DAY;
require(newTimestamp >= timestamp);
}
function addHours(uint timestamp, uint _hours)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp + _hours * SECONDS_PER_HOUR;
require(newTimestamp >= timestamp);
}
function addMinutes(uint timestamp, uint _minutes)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp + _minutes * SECONDS_PER_MINUTE;
require(newTimestamp >= timestamp);
}
function addSeconds(uint timestamp, uint _seconds)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp + _seconds;
require(newTimestamp >= timestamp);
}
function subYears(uint timestamp, uint _years)
internal
pure
returns (uint newTimestamp)
{
(uint year, uint month, uint day) = _daysToDate(
timestamp / SECONDS_PER_DAY
);
year -= _years;
uint daysInMonth = _getDaysInMonth(year, month);
if (day > daysInMonth) {
day = daysInMonth;
}
newTimestamp =
_daysFromDate(year, month, day) *
SECONDS_PER_DAY +
(timestamp % SECONDS_PER_DAY);
require(newTimestamp <= timestamp);
}
function subMonths(uint timestamp, uint _months)
internal
pure
returns (uint newTimestamp)
{
(uint year, uint month, uint day) = _daysToDate(
timestamp / SECONDS_PER_DAY
);
uint yearMonth = year * 12 + (month - 1) - _months;
year = yearMonth / 12;
month = (yearMonth % 12) + 1;
uint daysInMonth = _getDaysInMonth(year, month);
if (day > daysInMonth) {
day = daysInMonth;
}
newTimestamp =
_daysFromDate(year, month, day) *
SECONDS_PER_DAY +
(timestamp % SECONDS_PER_DAY);
require(newTimestamp <= timestamp);
}
function subDays(uint timestamp, uint _days)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp - _days * SECONDS_PER_DAY;
require(newTimestamp <= timestamp);
}
function subHours(uint timestamp, uint _hours)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp - _hours * SECONDS_PER_HOUR;
require(newTimestamp <= timestamp);
}
function subMinutes(uint timestamp, uint _minutes)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp - _minutes * SECONDS_PER_MINUTE;
require(newTimestamp <= timestamp);
}
function subSeconds(uint timestamp, uint _seconds)
internal
pure
returns (uint newTimestamp)
{
newTimestamp = timestamp - _seconds;
require(newTimestamp <= timestamp);
}
function diffYears(uint fromTimestamp, uint toTimestamp)
internal
pure
returns (uint _years)
{
require(fromTimestamp <= toTimestamp);
(uint fromYear, , ) = _daysToDate(fromTimestamp / SECONDS_PER_DAY);
(uint toYear, , ) = _daysToDate(toTimestamp / SECONDS_PER_DAY);
_years = toYear - fromYear;
}
function diffMonths(uint fromTimestamp, uint toTimestamp)
internal
pure
returns (uint _months)
{
require(fromTimestamp <= toTimestamp);
(uint fromYear, uint fromMonth, ) = _daysToDate(
fromTimestamp / SECONDS_PER_DAY
);
(uint toYear, uint toMonth, ) = _daysToDate(
toTimestamp / SECONDS_PER_DAY
);
_months = toYear * 12 + toMonth - fromYear * 12 - fromMonth;
}
function diffDays(uint fromTimestamp, uint toTimestamp)
internal
pure
returns (uint _days)
{
require(fromTimestamp <= toTimestamp);
_days = (toTimestamp - fromTimestamp) / SECONDS_PER_DAY;
}
function diffHours(uint fromTimestamp, uint toTimestamp)
internal
pure
returns (uint _hours)
{
require(fromTimestamp <= toTimestamp);
_hours = (toTimestamp - fromTimestamp) / SECONDS_PER_HOUR;
}
function diffMinutes(uint fromTimestamp, uint toTimestamp)
internal
pure
returns (uint _minutes)
{
require(fromTimestamp <= toTimestamp);
_minutes = (toTimestamp - fromTimestamp) / SECONDS_PER_MINUTE;
}
function diffSeconds(uint fromTimestamp, uint toTimestamp)
internal
pure
returns (uint _seconds)
{
require(fromTimestamp <= toTimestamp);
_seconds = toTimestamp - fromTimestamp;
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
// Libraries
import { SafeCast } from "@openzeppelin/contracts/utils/math/SafeCast.sol";
import { Math } from "@openzeppelin/contracts/utils/math/Math.sol";
import "./WadRayMath.sol";
/**
* @dev Utility library for uint256 numbers
*
* @author [email protected]
*/
library NumbersLib {
using WadRayMath for uint256;
/**
* @dev It represents 100% with 2 decimal places.
*/
uint16 internal constant PCT_100 = 10000;
function percentFactor(uint256 decimals) internal pure returns (uint256) {
return 100 * (10**decimals);
}
/**
* @notice Returns a percentage value of a number.
* @param self The number to get a percentage of.
* @param percentage The percentage value to calculate with 2 decimal places (10000 = 100%).
*/
function percent(uint256 self, uint16 percentage)
internal
pure
returns (uint256)
{
return percent(self, percentage, 2);
}
/**
* @notice Returns a percentage value of a number.
* @param self The number to get a percentage of.
* @param percentage The percentage value to calculate with.
* @param decimals The number of decimals the percentage value is in.
*/
function percent(uint256 self, uint256 percentage, uint256 decimals)
internal
pure
returns (uint256)
{
return (self * percentage) / percentFactor(decimals);
}
/**
* @notice it returns the absolute number of a specified parameter
* @param self the number to be returned in it's absolute
* @return the absolute number
*/
function abs(int256 self) internal pure returns (uint256) {
return self >= 0 ? uint256(self) : uint256(-1 * self);
}
/**
* @notice Returns a ratio percentage of {num1} to {num2}.
* @dev Returned value is type uint16.
* @param num1 The number used to get the ratio for.
* @param num2 The number used to get the ratio from.
* @return Ratio percentage with 2 decimal places (10000 = 100%).
*/
function ratioOf(uint256 num1, uint256 num2)
internal
pure
returns (uint16)
{
return SafeCast.toUint16(ratioOf(num1, num2, 2));
}
/**
* @notice Returns a ratio percentage of {num1} to {num2}.
* @param num1 The number used to get the ratio for.
* @param num2 The number used to get the ratio from.
* @param decimals The number of decimals the percentage value is returned in.
* @return Ratio percentage value.
*/
function ratioOf(uint256 num1, uint256 num2, uint256 decimals)
internal
pure
returns (uint256)
{
if (num2 == 0) return 0;
return (num1 * percentFactor(decimals)) / num2;
}
/**
* @notice Calculates the payment amount for a cycle duration.
* The formula is calculated based on the standard Estimated Monthly Installment (https://en.wikipedia.org/wiki/Equated_monthly_installment)
* EMI = [P x R x (1+R)^N]/[(1+R)^N-1]
* @param principal The starting amount that is owed on the loan.
* @param loanDuration The length of the loan.
* @param cycleDuration The length of the loan's payment cycle.
* @param apr The annual percentage rate of the loan.
*/
function pmt(
uint256 principal,
uint32 loanDuration,
uint32 cycleDuration,
uint16 apr,
uint256 daysInYear
) internal pure returns (uint256) {
require(
loanDuration >= cycleDuration,
"PMT: cycle duration < loan duration"
);
if (apr == 0)
return
Math.mulDiv(
principal,
cycleDuration,
loanDuration,
Math.Rounding.Up
);
// Number of payment cycles for the duration of the loan
uint256 n = Math.ceilDiv(loanDuration, cycleDuration);
uint256 one = WadRayMath.wad();
uint256 r = WadRayMath.pctToWad(apr).wadMul(cycleDuration).wadDiv(
daysInYear
);
uint256 exp = (one + r).wadPow(n);
uint256 numerator = principal.wadMul(r).wadMul(exp);
uint256 denominator = exp - one;
return numerator.wadDiv(denominator);
}
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Callback for IUniswapV3PoolActions#flash
/// @notice Any contract that calls IUniswapV3PoolActions#flash must implement this interface
interface IUniswapV3FlashCallback {
/// @notice Called to `msg.sender` after transferring to the recipient from IUniswapV3Pool#flash.
/// @dev In the implementation you must repay the pool the tokens sent by flash plus the computed fee amounts.
/// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.
/// @param fee0 The fee amount in token0 due to the pool by the end of the flash
/// @param fee1 The fee amount in token1 due to the pool by the end of the flash
/// @param data Any data passed through by the caller via the IUniswapV3PoolActions#flash call
function uniswapV3FlashCallback(
uint256 fee0,
uint256 fee1,
bytes calldata data
) external;
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Callback for IUniswapV3PoolActions#swap
/// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface
interface IUniswapV3SwapCallback {
/// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap.
/// @dev In the implementation you must pay the pool tokens owed for the swap.
/// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.
/// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.
/// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by
/// the end of the swap. If positive, the callback must send that amount of token0 to the pool.
/// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by
/// the end of the swap. If positive, the callback must send that amount of token1 to the pool.
/// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call
function uniswapV3SwapCallback(
int256 amount0Delta,
int256 amount1Delta,
bytes calldata data
) external;
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title The interface for the Uniswap V3 Factory
/// @notice The Uniswap V3 Factory facilitates creation of Uniswap V3 pools and control over the protocol fees
interface IUniswapV3Factory {
/// @notice Emitted when the owner of the factory is changed
/// @param oldOwner The owner before the owner was changed
/// @param newOwner The owner after the owner was changed
event OwnerChanged(address indexed oldOwner, address indexed newOwner);
/// @notice Emitted when a pool is created
/// @param token0 The first token of the pool by address sort order
/// @param token1 The second token of the pool by address sort order
/// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip
/// @param tickSpacing The minimum number of ticks between initialized ticks
/// @param pool The address of the created pool
event PoolCreated(
address indexed token0,
address indexed token1,
uint24 indexed fee,
int24 tickSpacing,
address pool
);
/// @notice Emitted when a new fee amount is enabled for pool creation via the factory
/// @param fee The enabled fee, denominated in hundredths of a bip
/// @param tickSpacing The minimum number of ticks between initialized ticks for pools created with the given fee
event FeeAmountEnabled(uint24 indexed fee, int24 indexed tickSpacing);
/// @notice Returns the current owner of the factory
/// @dev Can be changed by the current owner via setOwner
/// @return The address of the factory owner
function owner() external view returns (address);
/// @notice Returns the tick spacing for a given fee amount, if enabled, or 0 if not enabled
/// @dev A fee amount can never be removed, so this value should be hard coded or cached in the calling context
/// @param fee The enabled fee, denominated in hundredths of a bip. Returns 0 in case of unenabled fee
/// @return The tick spacing
function feeAmountTickSpacing(uint24 fee) external view returns (int24);
/// @notice Returns the pool address for a given pair of tokens and a fee, or address 0 if it does not exist
/// @dev tokenA and tokenB may be passed in either token0/token1 or token1/token0 order
/// @param tokenA The contract address of either token0 or token1
/// @param tokenB The contract address of the other token
/// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip
/// @return pool The pool address
function getPool(
address tokenA,
address tokenB,
uint24 fee
) external view returns (address pool);
/// @notice Creates a pool for the given two tokens and fee
/// @param tokenA One of the two tokens in the desired pool
/// @param tokenB The other of the two tokens in the desired pool
/// @param fee The desired fee for the pool
/// @dev tokenA and tokenB may be passed in either order: token0/token1 or token1/token0. tickSpacing is retrieved
/// from the fee. The call will revert if the pool already exists, the fee is invalid, or the token arguments
/// are invalid.
/// @return pool The address of the newly created pool
function createPool(
address tokenA,
address tokenB,
uint24 fee
) external returns (address pool);
/// @notice Updates the owner of the factory
/// @dev Must be called by the current owner
/// @param _owner The new owner of the factory
function setOwner(address _owner) external;
/// @notice Enables a fee amount with the given tickSpacing
/// @dev Fee amounts may never be removed once enabled
/// @param fee The fee amount to enable, denominated in hundredths of a bip (i.e. 1e-6)
/// @param tickSpacing The spacing between ticks to be enforced for all pools created with the given fee amount
function enableFeeAmount(uint24 fee, int24 tickSpacing) external;
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
import './pool/IUniswapV3PoolImmutables.sol';
import './pool/IUniswapV3PoolState.sol';
import './pool/IUniswapV3PoolDerivedState.sol';
import './pool/IUniswapV3PoolActions.sol';
import './pool/IUniswapV3PoolOwnerActions.sol';
import './pool/IUniswapV3PoolEvents.sol';
/// @title The interface for a Uniswap V3 Pool
/// @notice A Uniswap pool facilitates swapping and automated market making between any two assets that strictly conform
/// to the ERC20 specification
/// @dev The pool interface is broken up into many smaller pieces
interface IUniswapV3Pool is
IUniswapV3PoolImmutables,
IUniswapV3PoolState,
IUniswapV3PoolDerivedState,
IUniswapV3PoolActions,
IUniswapV3PoolOwnerActions,
IUniswapV3PoolEvents
{
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Permissionless pool actions
/// @notice Contains pool methods that can be called by anyone
interface IUniswapV3PoolActions {
/// @notice Sets the initial price for the pool
/// @dev Price is represented as a sqrt(amountToken1/amountToken0) Q64.96 value
/// @param sqrtPriceX96 the initial sqrt price of the pool as a Q64.96
function initialize(uint160 sqrtPriceX96) external;
/// @notice Adds liquidity for the given recipient/tickLower/tickUpper position
/// @dev The caller of this method receives a callback in the form of IUniswapV3MintCallback#uniswapV3MintCallback
/// in which they must pay any token0 or token1 owed for the liquidity. The amount of token0/token1 due depends
/// on tickLower, tickUpper, the amount of liquidity, and the current price.
/// @param recipient The address for which the liquidity will be created
/// @param tickLower The lower tick of the position in which to add liquidity
/// @param tickUpper The upper tick of the position in which to add liquidity
/// @param amount The amount of liquidity to mint
/// @param data Any data that should be passed through to the callback
/// @return amount0 The amount of token0 that was paid to mint the given amount of liquidity. Matches the value in the callback
/// @return amount1 The amount of token1 that was paid to mint the given amount of liquidity. Matches the value in the callback
function mint(
address recipient,
int24 tickLower,
int24 tickUpper,
uint128 amount,
bytes calldata data
) external returns (uint256 amount0, uint256 amount1);
/// @notice Collects tokens owed to a position
/// @dev Does not recompute fees earned, which must be done either via mint or burn of any amount of liquidity.
/// Collect must be called by the position owner. To withdraw only token0 or only token1, amount0Requested or
/// amount1Requested may be set to zero. To withdraw all tokens owed, caller may pass any value greater than the
/// actual tokens owed, e.g. type(uint128).max. Tokens owed may be from accumulated swap fees or burned liquidity.
/// @param recipient The address which should receive the fees collected
/// @param tickLower The lower tick of the position for which to collect fees
/// @param tickUpper The upper tick of the position for which to collect fees
/// @param amount0Requested How much token0 should be withdrawn from the fees owed
/// @param amount1Requested How much token1 should be withdrawn from the fees owed
/// @return amount0 The amount of fees collected in token0
/// @return amount1 The amount of fees collected in token1
function collect(
address recipient,
int24 tickLower,
int24 tickUpper,
uint128 amount0Requested,
uint128 amount1Requested
) external returns (uint128 amount0, uint128 amount1);
/// @notice Burn liquidity from the sender and account tokens owed for the liquidity to the position
/// @dev Can be used to trigger a recalculation of fees owed to a position by calling with an amount of 0
/// @dev Fees must be collected separately via a call to #collect
/// @param tickLower The lower tick of the position for which to burn liquidity
/// @param tickUpper The upper tick of the position for which to burn liquidity
/// @param amount How much liquidity to burn
/// @return amount0 The amount of token0 sent to the recipient
/// @return amount1 The amount of token1 sent to the recipient
function burn(
int24 tickLower,
int24 tickUpper,
uint128 amount
) external returns (uint256 amount0, uint256 amount1);
/// @notice Swap token0 for token1, or token1 for token0
/// @dev The caller of this method receives a callback in the form of IUniswapV3SwapCallback#uniswapV3SwapCallback
/// @param recipient The address to receive the output of the swap
/// @param zeroForOne The direction of the swap, true for token0 to token1, false for token1 to token0
/// @param amountSpecified The amount of the swap, which implicitly configures the swap as exact input (positive), or exact output (negative)
/// @param sqrtPriceLimitX96 The Q64.96 sqrt price limit. If zero for one, the price cannot be less than this
/// value after the swap. If one for zero, the price cannot be greater than this value after the swap
/// @param data Any data to be passed through to the callback
/// @return amount0 The delta of the balance of token0 of the pool, exact when negative, minimum when positive
/// @return amount1 The delta of the balance of token1 of the pool, exact when negative, minimum when positive
function swap(
address recipient,
bool zeroForOne,
int256 amountSpecified,
uint160 sqrtPriceLimitX96,
bytes calldata data
) external returns (int256 amount0, int256 amount1);
/// @notice Receive token0 and/or token1 and pay it back, plus a fee, in the callback
/// @dev The caller of this method receives a callback in the form of IUniswapV3FlashCallback#uniswapV3FlashCallback
/// @dev Can be used to donate underlying tokens pro-rata to currently in-range liquidity providers by calling
/// with 0 amount{0,1} and sending the donation amount(s) from the callback
/// @param recipient The address which will receive the token0 and token1 amounts
/// @param amount0 The amount of token0 to send
/// @param amount1 The amount of token1 to send
/// @param data Any data to be passed through to the callback
function flash(
address recipient,
uint256 amount0,
uint256 amount1,
bytes calldata data
) external;
/// @notice Increase the maximum number of price and liquidity observations that this pool will store
/// @dev This method is no-op if the pool already has an observationCardinalityNext greater than or equal to
/// the input observationCardinalityNext.
/// @param observationCardinalityNext The desired minimum number of observations for the pool to store
function increaseObservationCardinalityNext(uint16 observationCardinalityNext) external;
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Pool state that is not stored
/// @notice Contains view functions to provide information about the pool that is computed rather than stored on the
/// blockchain. The functions here may have variable gas costs.
interface IUniswapV3PoolDerivedState {
/// @notice Returns the cumulative tick and liquidity as of each timestamp `secondsAgo` from the current block timestamp
/// @dev To get a time weighted average tick or liquidity-in-range, you must call this with two values, one representing
/// the beginning of the period and another for the end of the period. E.g., to get the last hour time-weighted average tick,
/// you must call it with secondsAgos = [3600, 0].
/// @dev The time weighted average tick represents the geometric time weighted average price of the pool, in
/// log base sqrt(1.0001) of token1 / token0. The TickMath library can be used to go from a tick value to a ratio.
/// @param secondsAgos From how long ago each cumulative tick and liquidity value should be returned
/// @return tickCumulatives Cumulative tick values as of each `secondsAgos` from the current block timestamp
/// @return secondsPerLiquidityCumulativeX128s Cumulative seconds per liquidity-in-range value as of each `secondsAgos` from the current block
/// timestamp
function observe(uint32[] calldata secondsAgos)
external
view
returns (int56[] memory tickCumulatives, uint160[] memory secondsPerLiquidityCumulativeX128s);
/// @notice Returns a snapshot of the tick cumulative, seconds per liquidity and seconds inside a tick range
/// @dev Snapshots must only be compared to other snapshots, taken over a period for which a position existed.
/// I.e., snapshots cannot be compared if a position is not held for the entire period between when the first
/// snapshot is taken and the second snapshot is taken.
/// @param tickLower The lower tick of the range
/// @param tickUpper The upper tick of the range
/// @return tickCumulativeInside The snapshot of the tick accumulator for the range
/// @return secondsPerLiquidityInsideX128 The snapshot of seconds per liquidity for the range
/// @return secondsInside The snapshot of seconds per liquidity for the range
function snapshotCumulativesInside(int24 tickLower, int24 tickUpper)
external
view
returns (
int56 tickCumulativeInside,
uint160 secondsPerLiquidityInsideX128,
uint32 secondsInside
);
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Events emitted by a pool
/// @notice Contains all events emitted by the pool
interface IUniswapV3PoolEvents {
/// @notice Emitted exactly once by a pool when #initialize is first called on the pool
/// @dev Mint/Burn/Swap cannot be emitted by the pool before Initialize
/// @param sqrtPriceX96 The initial sqrt price of the pool, as a Q64.96
/// @param tick The initial tick of the pool, i.e. log base 1.0001 of the starting price of the pool
event Initialize(uint160 sqrtPriceX96, int24 tick);
/// @notice Emitted when liquidity is minted for a given position
/// @param sender The address that minted the liquidity
/// @param owner The owner of the position and recipient of any minted liquidity
/// @param tickLower The lower tick of the position
/// @param tickUpper The upper tick of the position
/// @param amount The amount of liquidity minted to the position range
/// @param amount0 How much token0 was required for the minted liquidity
/// @param amount1 How much token1 was required for the minted liquidity
event Mint(
address sender,
address indexed owner,
int24 indexed tickLower,
int24 indexed tickUpper,
uint128 amount,
uint256 amount0,
uint256 amount1
);
/// @notice Emitted when fees are collected by the owner of a position
/// @dev Collect events may be emitted with zero amount0 and amount1 when the caller chooses not to collect fees
/// @param owner The owner of the position for which fees are collected
/// @param tickLower The lower tick of the position
/// @param tickUpper The upper tick of the position
/// @param amount0 The amount of token0 fees collected
/// @param amount1 The amount of token1 fees collected
event Collect(
address indexed owner,
address recipient,
int24 indexed tickLower,
int24 indexed tickUpper,
uint128 amount0,
uint128 amount1
);
/// @notice Emitted when a position's liquidity is removed
/// @dev Does not withdraw any fees earned by the liquidity position, which must be withdrawn via #collect
/// @param owner The owner of the position for which liquidity is removed
/// @param tickLower The lower tick of the position
/// @param tickUpper The upper tick of the position
/// @param amount The amount of liquidity to remove
/// @param amount0 The amount of token0 withdrawn
/// @param amount1 The amount of token1 withdrawn
event Burn(
address indexed owner,
int24 indexed tickLower,
int24 indexed tickUpper,
uint128 amount,
uint256 amount0,
uint256 amount1
);
/// @notice Emitted by the pool for any swaps between token0 and token1
/// @param sender The address that initiated the swap call, and that received the callback
/// @param recipient The address that received the output of the swap
/// @param amount0 The delta of the token0 balance of the pool
/// @param amount1 The delta of the token1 balance of the pool
/// @param sqrtPriceX96 The sqrt(price) of the pool after the swap, as a Q64.96
/// @param liquidity The liquidity of the pool after the swap
/// @param tick The log base 1.0001 of price of the pool after the swap
event Swap(
address indexed sender,
address indexed recipient,
int256 amount0,
int256 amount1,
uint160 sqrtPriceX96,
uint128 liquidity,
int24 tick
);
/// @notice Emitted by the pool for any flashes of token0/token1
/// @param sender The address that initiated the swap call, and that received the callback
/// @param recipient The address that received the tokens from flash
/// @param amount0 The amount of token0 that was flashed
/// @param amount1 The amount of token1 that was flashed
/// @param paid0 The amount of token0 paid for the flash, which can exceed the amount0 plus the fee
/// @param paid1 The amount of token1 paid for the flash, which can exceed the amount1 plus the fee
event Flash(
address indexed sender,
address indexed recipient,
uint256 amount0,
uint256 amount1,
uint256 paid0,
uint256 paid1
);
/// @notice Emitted by the pool for increases to the number of observations that can be stored
/// @dev observationCardinalityNext is not the observation cardinality until an observation is written at the index
/// just before a mint/swap/burn.
/// @param observationCardinalityNextOld The previous value of the next observation cardinality
/// @param observationCardinalityNextNew The updated value of the next observation cardinality
event IncreaseObservationCardinalityNext(
uint16 observationCardinalityNextOld,
uint16 observationCardinalityNextNew
);
/// @notice Emitted when the protocol fee is changed by the pool
/// @param feeProtocol0Old The previous value of the token0 protocol fee
/// @param feeProtocol1Old The previous value of the token1 protocol fee
/// @param feeProtocol0New The updated value of the token0 protocol fee
/// @param feeProtocol1New The updated value of the token1 protocol fee
event SetFeeProtocol(uint8 feeProtocol0Old, uint8 feeProtocol1Old, uint8 feeProtocol0New, uint8 feeProtocol1New);
/// @notice Emitted when the collected protocol fees are withdrawn by the factory owner
/// @param sender The address that collects the protocol fees
/// @param recipient The address that receives the collected protocol fees
/// @param amount0 The amount of token0 protocol fees that is withdrawn
/// @param amount0 The amount of token1 protocol fees that is withdrawn
event CollectProtocol(address indexed sender, address indexed recipient, uint128 amount0, uint128 amount1);
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Pool state that never changes
/// @notice These parameters are fixed for a pool forever, i.e., the methods will always return the same values
interface IUniswapV3PoolImmutables {
/// @notice The contract that deployed the pool, which must adhere to the IUniswapV3Factory interface
/// @return The contract address
function factory() external view returns (address);
/// @notice The first of the two tokens of the pool, sorted by address
/// @return The token contract address
function token0() external view returns (address);
/// @notice The second of the two tokens of the pool, sorted by address
/// @return The token contract address
function token1() external view returns (address);
/// @notice The pool's fee in hundredths of a bip, i.e. 1e-6
/// @return The fee
function fee() external view returns (uint24);
/// @notice The pool tick spacing
/// @dev Ticks can only be used at multiples of this value, minimum of 1 and always positive
/// e.g.: a tickSpacing of 3 means ticks can be initialized every 3rd tick, i.e., ..., -6, -3, 0, 3, 6, ...
/// This value is an int24 to avoid casting even though it is always positive.
/// @return The tick spacing
function tickSpacing() external view returns (int24);
/// @notice The maximum amount of position liquidity that can use any tick in the range
/// @dev This parameter is enforced per tick to prevent liquidity from overflowing a uint128 at any point, and
/// also prevents out-of-range liquidity from being used to prevent adding in-range liquidity to a pool
/// @return The max amount of liquidity per tick
function maxLiquidityPerTick() external view returns (uint128);
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Permissioned pool actions
/// @notice Contains pool methods that may only be called by the factory owner
interface IUniswapV3PoolOwnerActions {
/// @notice Set the denominator of the protocol's % share of the fees
/// @param feeProtocol0 new protocol fee for token0 of the pool
/// @param feeProtocol1 new protocol fee for token1 of the pool
function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external;
/// @notice Collect the protocol fee accrued to the pool
/// @param recipient The address to which collected protocol fees should be sent
/// @param amount0Requested The maximum amount of token0 to send, can be 0 to collect fees in only token1
/// @param amount1Requested The maximum amount of token1 to send, can be 0 to collect fees in only token0
/// @return amount0 The protocol fee collected in token0
/// @return amount1 The protocol fee collected in token1
function collectProtocol(
address recipient,
uint128 amount0Requested,
uint128 amount1Requested
) external returns (uint128 amount0, uint128 amount1);
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Pool state that can change
/// @notice These methods compose the pool's state, and can change with any frequency including multiple times
/// per transaction
interface IUniswapV3PoolState {
/// @notice The 0th storage slot in the pool stores many values, and is exposed as a single method to save gas
/// when accessed externally.
/// @return sqrtPriceX96 The current price of the pool as a sqrt(token1/token0) Q64.96 value
/// tick The current tick of the pool, i.e. according to the last tick transition that was run.
/// This value may not always be equal to SqrtTickMath.getTickAtSqrtRatio(sqrtPriceX96) if the price is on a tick
/// boundary.
/// observationIndex The index of the last oracle observation that was written,
/// observationCardinality The current maximum number of observations stored in the pool,
/// observationCardinalityNext The next maximum number of observations, to be updated when the observation.
/// feeProtocol The protocol fee for both tokens of the pool.
/// Encoded as two 4 bit values, where the protocol fee of token1 is shifted 4 bits and the protocol fee of token0
/// is the lower 4 bits. Used as the denominator of a fraction of the swap fee, e.g. 4 means 1/4th of the swap fee.
/// unlocked Whether the pool is currently locked to reentrancy
function slot0()
external
view
returns (
uint160 sqrtPriceX96,
int24 tick,
uint16 observationIndex,
uint16 observationCardinality,
uint16 observationCardinalityNext,
uint8 feeProtocol,
bool unlocked
);
/// @notice The fee growth as a Q128.128 fees of token0 collected per unit of liquidity for the entire life of the pool
/// @dev This value can overflow the uint256
function feeGrowthGlobal0X128() external view returns (uint256);
/// @notice The fee growth as a Q128.128 fees of token1 collected per unit of liquidity for the entire life of the pool
/// @dev This value can overflow the uint256
function feeGrowthGlobal1X128() external view returns (uint256);
/// @notice The amounts of token0 and token1 that are owed to the protocol
/// @dev Protocol fees will never exceed uint128 max in either token
function protocolFees() external view returns (uint128 token0, uint128 token1);
/// @notice The currently in range liquidity available to the pool
/// @dev This value has no relationship to the total liquidity across all ticks
function liquidity() external view returns (uint128);
/// @notice Look up information about a specific tick in the pool
/// @param tick The tick to look up
/// @return liquidityGross the total amount of position liquidity that uses the pool either as tick lower or
/// tick upper,
/// liquidityNet how much liquidity changes when the pool price crosses the tick,
/// feeGrowthOutside0X128 the fee growth on the other side of the tick from the current tick in token0,
/// feeGrowthOutside1X128 the fee growth on the other side of the tick from the current tick in token1,
/// tickCumulativeOutside the cumulative tick value on the other side of the tick from the current tick
/// secondsPerLiquidityOutsideX128 the seconds spent per liquidity on the other side of the tick from the current tick,
/// secondsOutside the seconds spent on the other side of the tick from the current tick,
/// initialized Set to true if the tick is initialized, i.e. liquidityGross is greater than 0, otherwise equal to false.
/// Outside values can only be used if the tick is initialized, i.e. if liquidityGross is greater than 0.
/// In addition, these values are only relative and must be used only in comparison to previous snapshots for
/// a specific position.
function ticks(int24 tick)
external
view
returns (
uint128 liquidityGross,
int128 liquidityNet,
uint256 feeGrowthOutside0X128,
uint256 feeGrowthOutside1X128,
int56 tickCumulativeOutside,
uint160 secondsPerLiquidityOutsideX128,
uint32 secondsOutside,
bool initialized
);
/// @notice Returns 256 packed tick initialized boolean values. See TickBitmap for more information
function tickBitmap(int16 wordPosition) external view returns (uint256);
/// @notice Returns the information about a position by the position's key
/// @param key The position's key is a hash of a preimage composed by the owner, tickLower and tickUpper
/// @return _liquidity The amount of liquidity in the position,
/// Returns feeGrowthInside0LastX128 fee growth of token0 inside the tick range as of the last mint/burn/poke,
/// Returns feeGrowthInside1LastX128 fee growth of token1 inside the tick range as of the last mint/burn/poke,
/// Returns tokensOwed0 the computed amount of token0 owed to the position as of the last mint/burn/poke,
/// Returns tokensOwed1 the computed amount of token1 owed to the position as of the last mint/burn/poke
function positions(bytes32 key)
external
view
returns (
uint128 _liquidity,
uint256 feeGrowthInside0LastX128,
uint256 feeGrowthInside1LastX128,
uint128 tokensOwed0,
uint128 tokensOwed1
);
/// @notice Returns data about a specific observation index
/// @param index The element of the observations array to fetch
/// @dev You most likely want to use #observe() instead of this method to get an observation as of some amount of time
/// ago, rather than at a specific index in the array.
/// @return blockTimestamp The timestamp of the observation,
/// Returns tickCumulative the tick multiplied by seconds elapsed for the life of the pool as of the observation timestamp,
/// Returns secondsPerLiquidityCumulativeX128 the seconds per in range liquidity for the life of the pool as of the observation timestamp,
/// Returns initialized whether the observation has been initialized and the values are safe to use
function observations(uint256 index)
external
view
returns (
uint32 blockTimestamp,
int56 tickCumulative,
uint160 secondsPerLiquidityCumulativeX128,
bool initialized
);
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.0;
/// @title Optimized overflow and underflow safe math operations
/// @notice Contains methods for doing math operations that revert on overflow or underflow for minimal gas cost
library LowGasSafeMath {
/// @notice Returns x + y, reverts if sum overflows uint256
/// @param x The augend
/// @param y The addend
/// @return z The sum of x and y
function add(uint256 x, uint256 y) internal pure returns (uint256 z) {
require((z = x + y) >= x);
}
/// @notice Returns x - y, reverts if underflows
/// @param x The minuend
/// @param y The subtrahend
/// @return z The difference of x and y
function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {
require((z = x - y) <= x);
}
/// @notice Returns x * y, reverts if overflows
/// @param x The multiplicand
/// @param y The multiplier
/// @return z The product of x and y
function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {
require(x == 0 || (z = x * y) / x == y);
}
/// @notice Returns x + y, reverts if overflows or underflows
/// @param x The augend
/// @param y The addend
/// @return z The sum of x and y
function add(int256 x, int256 y) internal pure returns (int256 z) {
require((z = x + y) >= x == (y >= 0));
}
/// @notice Returns x - y, reverts if overflows or underflows
/// @param x The minuend
/// @param y The subtrahend
/// @return z The difference of x and y
function sub(int256 x, int256 y) internal pure returns (int256 z) {
require((z = x - y) <= x == (y >= 0));
}
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.0;
import '../interfaces/IPeripheryImmutableState.sol';
/// @title Immutable state
/// @notice Immutable state used by periphery contracts
abstract contract PeripheryImmutableState is IPeripheryImmutableState {
/// @inheritdoc IPeripheryImmutableState
address public immutable override factory;
/// @inheritdoc IPeripheryImmutableState
address public immutable override WETH9;
constructor(address _factory, address _WETH9) {
factory = _factory;
WETH9 = _WETH9;
}
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '../interfaces/IPeripheryPayments.sol';
import '../interfaces/external/IWETH9.sol';
import '../libraries/TransferHelper.sol';
import './PeripheryImmutableState.sol';
abstract contract PeripheryPayments is IPeripheryPayments, PeripheryImmutableState {
receive() external payable {
require(msg.sender == WETH9, 'Not WETH9');
}
/// @inheritdoc IPeripheryPayments
function unwrapWETH9(uint256 amountMinimum, address recipient) public payable override {
uint256 balanceWETH9 = IWETH9(WETH9).balanceOf(address(this));
require(balanceWETH9 >= amountMinimum, 'Insufficient WETH9');
if (balanceWETH9 > 0) {
IWETH9(WETH9).withdraw(balanceWETH9);
TransferHelper.safeTransferETH(recipient, balanceWETH9);
}
}
/// @inheritdoc IPeripheryPayments
function sweepToken(
address token,
uint256 amountMinimum,
address recipient
) public payable override {
uint256 balanceToken = IERC20(token).balanceOf(address(this));
require(balanceToken >= amountMinimum, 'Insufficient token');
if (balanceToken > 0) {
TransferHelper.safeTransfer(token, recipient, balanceToken);
}
}
/// @inheritdoc IPeripheryPayments
function refundETH() external payable override {
if (address(this).balance > 0) TransferHelper.safeTransferETH(msg.sender, address(this).balance);
}
/// @param token The token to pay
/// @param payer The entity that must pay
/// @param recipient The entity that will receive payment
/// @param value The amount to pay
function pay(
address token,
address payer,
address recipient,
uint256 value
) internal {
if (token == WETH9 && address(this).balance >= value) {
// pay with WETH9
IWETH9(WETH9).deposit{value: value}(); // wrap only what is needed to pay
IWETH9(WETH9).transfer(recipient, value);
} else if (payer == address(this)) {
// pay with tokens already in the contract (for the exact input multihop case)
TransferHelper.safeTransfer(token, recipient, value);
} else {
// pull payment
TransferHelper.safeTransferFrom(token, payer, recipient, value);
}
}
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.0;
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
/// @title Interface for WETH9
interface IWETH9 is IERC20 {
/// @notice Deposit ether to get wrapped ether
function deposit() external payable;
/// @notice Withdraw wrapped ether to get ether
function withdraw(uint256) external;
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.5.0;
/// @title Immutable state
/// @notice Functions that return immutable state of the router
interface IPeripheryImmutableState {
/// @return Returns the address of the Uniswap V3 factory
function factory() external view returns (address);
/// @return Returns the address of WETH9
function WETH9() external view returns (address);
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
/// @title Periphery Payments
/// @notice Functions to ease deposits and withdrawals of ETH
interface IPeripheryPayments {
/// @notice Unwraps the contract's WETH9 balance and sends it to recipient as ETH.
/// @dev The amountMinimum parameter prevents malicious contracts from stealing WETH9 from users.
/// @param amountMinimum The minimum amount of WETH9 to unwrap
/// @param recipient The address receiving ETH
function unwrapWETH9(uint256 amountMinimum, address recipient) external payable;
/// @notice Refunds any ETH balance held by this contract to the `msg.sender`
/// @dev Useful for bundling with mint or increase liquidity that uses ether, or exact output swaps
/// that use ether for the input amount
function refundETH() external payable;
/// @notice Transfers the full amount of a token held by this contract to recipient
/// @dev The amountMinimum parameter prevents malicious contracts from stealing the token from users
/// @param token The contract address of the token which will be transferred to `recipient`
/// @param amountMinimum The minimum amount of token required for a transfer
/// @param recipient The destination address of the token
function sweepToken(
address token,
uint256 amountMinimum,
address recipient
) external payable;
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;
import '../../core/interfaces/callback/IUniswapV3SwapCallback.sol';
/// @title Router token swapping functionality
/// @notice Functions for swapping tokens via Uniswap V3
interface ISwapRouter is IUniswapV3SwapCallback {
struct ExactInputSingleParams {
address tokenIn;
address tokenOut;
uint24 fee;
address recipient;
uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
uint160 sqrtPriceLimitX96;
}
/// @notice Swaps `amountIn` of one token for as much as possible of another token
/// @param params The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata
/// @return amountOut The amount of the received token
function exactInputSingle(ExactInputSingleParams calldata params) external payable returns (uint256 amountOut);
struct ExactInputParams {
bytes path;
address recipient;
uint256 deadline;
uint256 amountIn;
uint256 amountOutMinimum;
}
/// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path
/// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata
/// @return amountOut The amount of the received token
function exactInput(ExactInputParams calldata params) external payable returns (uint256 amountOut);
struct ExactOutputSingleParams {
address tokenIn;
address tokenOut;
uint24 fee;
address recipient;
uint256 deadline;
uint256 amountOut;
uint256 amountInMaximum;
uint160 sqrtPriceLimitX96;
}
/// @notice Swaps as little as possible of one token for `amountOut` of another token
/// @param params The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata
/// @return amountIn The amount of the input token
function exactOutputSingle(ExactOutputSingleParams calldata params) external payable returns (uint256 amountIn);
struct ExactOutputParams {
bytes path;
address recipient;
uint256 deadline;
uint256 amountOut;
uint256 amountInMaximum;
}
/// @notice Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed)
/// @param params The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata
/// @return amountIn The amount of the input token
function exactOutput(ExactOutputParams calldata params) external payable returns (uint256 amountIn);
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.0;
import '../../core/interfaces/IUniswapV3Pool.sol';
import './PoolAddress.sol';
/// @notice Provides validation for callbacks from Uniswap V3 Pools
library CallbackValidation {
/// @notice Returns the address of a valid Uniswap V3 Pool
/// @param factory The contract address of the Uniswap V3 factory
/// @param tokenA The contract address of either token0 or token1
/// @param tokenB The contract address of the other token
/// @param fee The fee collected upon every swap in the pool, denominated in hundredths of a bip
/// @return pool The V3 pool contract address
function verifyCallback(
address factory,
address tokenA,
address tokenB,
uint24 fee
) internal view returns (IUniswapV3Pool pool) {
return verifyCallback(factory, PoolAddress.getPoolKey(tokenA, tokenB, fee));
}
/// @notice Returns the address of a valid Uniswap V3 Pool
/// @param factory The contract address of the Uniswap V3 factory
/// @param poolKey The identifying key of the V3 pool
/// @return pool The V3 pool contract address
function verifyCallback(address factory, PoolAddress.PoolKey memory poolKey)
internal
view
returns (IUniswapV3Pool pool)
{
pool = IUniswapV3Pool(PoolAddress.computeAddress(factory, poolKey));
require(msg.sender == address(pool));
}
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.0;
/// @title Provides functions for deriving a pool address from the factory, tokens, and the fee
library PoolAddress {
bytes32 internal constant POOL_INIT_CODE_HASH = 0xe34f199b19b2b4f47f68442619d555527d244f78a3297ea89325f843f87b8b54;
/// @notice The identifying key of the pool
struct PoolKey {
address token0;
address token1;
uint24 fee;
}
/// @notice Returns PoolKey: the ordered tokens with the matched fee levels
/// @param tokenA The first token of a pool, unsorted
/// @param tokenB The second token of a pool, unsorted
/// @param fee The fee level of the pool
/// @return Poolkey The pool details with ordered token0 and token1 assignments
function getPoolKey(
address tokenA,
address tokenB,
uint24 fee
) internal pure returns (PoolKey memory) {
if (tokenA > tokenB) (tokenA, tokenB) = (tokenB, tokenA);
return PoolKey({token0: tokenA, token1: tokenB, fee: fee});
}
/// @notice Deterministically computes the pool address given the factory and PoolKey
/// @param factory The Uniswap V3 factory contract address
/// @param key The PoolKey
/// @return pool The contract address of the V3 pool
function computeAddress(address factory, PoolKey memory key) internal pure returns (address pool) {
require(key.token0 < key.token1);
pool = address(
uint160(uint256(
keccak256(
abi.encodePacked(
hex'ff',
factory,
keccak256(abi.encode(key.token0, key.token1, key.fee)),
POOL_INIT_CODE_HASH
)
)
) )
);
}
}// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.6.0;
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
library TransferHelper {
/// @notice Transfers tokens from the targeted address to the given destination
/// @notice Errors with 'STF' if transfer fails
/// @param token The contract address of the token to be transferred
/// @param from The originating address from which the tokens will be transferred
/// @param to The destination address of the transfer
/// @param value The amount to be transferred
function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
(bool success, bytes memory data) =
token.call(abi.encodeWithSelector(IERC20.transferFrom.selector, from, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'STF');
}
/// @notice Transfers tokens from msg.sender to a recipient
/// @dev Errors with ST if transfer fails
/// @param token The contract address of the token which will be transferred
/// @param to The recipient of the transfer
/// @param value The value of the transfer
function safeTransfer(
address token,
address to,
uint256 value
) internal {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(IERC20.transfer.selector, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'ST');
}
/// @notice Approves the stipulated contract to spend the given allowance in the given token
/// @dev Errors with 'SA' if transfer fails
/// @param token The contract address of the token to be approved
/// @param to The target of the approval
/// @param value The amount of the given token the target will be allowed to spend
function safeApprove(
address token,
address to,
uint256 value
) internal {
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(IERC20.approve.selector, to, value));
require(success && (data.length == 0 || abi.decode(data, (bool))), 'SA');
}
/// @notice Transfers ETH to the recipient address
/// @dev Fails with `STE`
/// @param to The destination of the transfer
/// @param value The value to be transferred
function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'STE');
}
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
// Libraries
import "./NumbersLib.sol";
import "@openzeppelin/contracts/utils/math/Math.sol";
import { Bid } from "../TellerV2Storage.sol";
import { BokkyPooBahsDateTimeLibrary as BPBDTL } from "./DateTimeLib.sol";
enum PaymentType {
EMI,
Bullet
}
enum PaymentCycleType {
Seconds,
Monthly
}
library V2Calculations {
using NumbersLib for uint256;
/**
* @notice Returns the timestamp of the last payment made for a loan.
* @param _bid The loan bid struct to get the timestamp for.
*/
function lastRepaidTimestamp(Bid storage _bid)
internal
view
returns (uint32)
{
return
_bid.loanDetails.lastRepaidTimestamp == 0
? _bid.loanDetails.acceptedTimestamp
: _bid.loanDetails.lastRepaidTimestamp;
}
/**
* @notice Calculates the amount owed for a loan.
* @param _bid The loan bid struct to get the owed amount for.
* @param _timestamp The timestamp at which to get the owed amount at.
* @param _paymentCycleType The payment cycle type of the loan (Seconds or Monthly).
*/
function calculateAmountOwed(
Bid storage _bid,
uint256 _timestamp,
PaymentCycleType _paymentCycleType,
uint32 _paymentCycleDuration
)
public
view
returns (
uint256 owedPrincipal_,
uint256 duePrincipal_,
uint256 interest_
)
{
// Total principal left to pay
return
calculateAmountOwed(
_bid,
lastRepaidTimestamp(_bid),
_timestamp,
_paymentCycleType,
_paymentCycleDuration
);
}
function calculateAmountOwed(
Bid storage _bid,
uint256 _lastRepaidTimestamp,
uint256 _timestamp,
PaymentCycleType _paymentCycleType,
uint32 _paymentCycleDuration
)
public
view
returns (
uint256 owedPrincipal_,
uint256 duePrincipal_,
uint256 interest_
)
{
owedPrincipal_ =
_bid.loanDetails.principal -
_bid.loanDetails.totalRepaid.principal;
uint256 owedTime = _timestamp - uint256(_lastRepaidTimestamp);
{
uint256 daysInYear = _paymentCycleType == PaymentCycleType.Monthly
? 360 days
: 365 days;
uint256 interestOwedInAYear = owedPrincipal_.percent(_bid.terms.APR, 2);
interest_ = (interestOwedInAYear * owedTime) / daysInYear;
}
bool isLastPaymentCycle;
{
uint256 lastPaymentCycleDuration = _bid.loanDetails.loanDuration %
_paymentCycleDuration;
if (lastPaymentCycleDuration == 0) {
lastPaymentCycleDuration = _paymentCycleDuration;
}
uint256 endDate = uint256(_bid.loanDetails.acceptedTimestamp) +
uint256(_bid.loanDetails.loanDuration);
uint256 lastPaymentCycleStart = endDate -
uint256(lastPaymentCycleDuration);
isLastPaymentCycle =
uint256(_timestamp) > lastPaymentCycleStart ||
owedPrincipal_ + interest_ <= _bid.terms.paymentCycleAmount;
}
if (_bid.paymentType == PaymentType.Bullet) {
if (isLastPaymentCycle) {
duePrincipal_ = owedPrincipal_;
}
} else {
// Default to PaymentType.EMI
// Max payable amount in a cycle
// NOTE: the last cycle could have less than the calculated payment amount
//the amount owed for the cycle should never exceed the current payment cycle amount so we use min here
uint256 owedAmountForCycle = Math.min( ((_bid.terms.paymentCycleAmount * owedTime) ) /
_paymentCycleDuration , _bid.terms.paymentCycleAmount+interest_ ) ;
uint256 owedAmount = isLastPaymentCycle
? owedPrincipal_ + interest_
: owedAmountForCycle ;
duePrincipal_ = Math.min(owedAmount - interest_, owedPrincipal_);
}
}
/**
* @notice Calculates the amount owed for a loan for the next payment cycle.
* @param _type The payment type of the loan.
* @param _cycleType The cycle type set for the loan. (Seconds or Monthly)
* @param _principal The starting amount that is owed on the loan.
* @param _duration The length of the loan.
* @param _paymentCycle The length of the loan's payment cycle.
* @param _apr The annual percentage rate of the loan.
*/
function calculatePaymentCycleAmount(
PaymentType _type,
PaymentCycleType _cycleType,
uint256 _principal,
uint32 _duration,
uint32 _paymentCycle,
uint16 _apr
) public view returns (uint256) {
uint256 daysInYear = _cycleType == PaymentCycleType.Monthly
? 360 days
: 365 days;
if (_type == PaymentType.Bullet) {
return
_principal.percent(_apr).percent(
uint256(_paymentCycle).ratioOf(daysInYear, 10),
10
);
}
// Default to PaymentType.EMI
return
NumbersLib.pmt(
_principal,
_duration,
_paymentCycle,
_apr,
daysInYear
);
}
function calculateNextDueDate(
uint32 _acceptedTimestamp,
uint32 _paymentCycle,
uint32 _loanDuration,
uint32 _lastRepaidTimestamp,
PaymentCycleType _bidPaymentCycleType
) public view returns (uint32 dueDate_) {
// Calculate due date if payment cycle is set to monthly
if (_bidPaymentCycleType == PaymentCycleType.Monthly) {
// Calculate the cycle number the last repayment was made
uint256 lastPaymentCycle = BPBDTL.diffMonths(
_acceptedTimestamp,
_lastRepaidTimestamp
);
if (
BPBDTL.getDay(_lastRepaidTimestamp) >
BPBDTL.getDay(_acceptedTimestamp)
) {
lastPaymentCycle += 2;
} else {
lastPaymentCycle += 1;
}
dueDate_ = uint32(
BPBDTL.addMonths(_acceptedTimestamp, lastPaymentCycle)
);
} else if (_bidPaymentCycleType == PaymentCycleType.Seconds) {
// Start with the original due date being 1 payment cycle since bid was accepted
dueDate_ = _acceptedTimestamp + _paymentCycle;
// Calculate the cycle number the last repayment was made
uint32 delta = _lastRepaidTimestamp - _acceptedTimestamp;
if (delta > 0) {
uint32 repaymentCycle = uint32(
Math.ceilDiv(delta, _paymentCycle)
);
dueDate_ += (repaymentCycle * _paymentCycle);
}
}
uint32 endOfLoan = _acceptedTimestamp + _loanDuration;
//if we are in the last payment cycle, the next due date is the end of loan duration
if (dueDate_ > endOfLoan) {
dueDate_ = endOfLoan;
}
}
}// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@openzeppelin/contracts/utils/math/SafeCast.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
/**
* @title WadRayMath library
* @author Multiplier Finance
* @dev Provides mul and div function for wads (decimal numbers with 18 digits precision) and rays (decimals with 27 digits)
*/
library WadRayMath {
using SafeMath for uint256;
uint256 internal constant WAD = 1e18;
uint256 internal constant halfWAD = WAD / 2;
uint256 internal constant RAY = 1e27;
uint256 internal constant halfRAY = RAY / 2;
uint256 internal constant WAD_RAY_RATIO = 1e9;
uint256 internal constant PCT_WAD_RATIO = 1e14;
uint256 internal constant PCT_RAY_RATIO = 1e23;
function ray() internal pure returns (uint256) {
return RAY;
}
function wad() internal pure returns (uint256) {
return WAD;
}
function halfRay() internal pure returns (uint256) {
return halfRAY;
}
function halfWad() internal pure returns (uint256) {
return halfWAD;
}
function wadMul(uint256 a, uint256 b) internal pure returns (uint256) {
return halfWAD.add(a.mul(b)).div(WAD);
}
function wadDiv(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 halfB = b / 2;
return halfB.add(a.mul(WAD)).div(b);
}
function rayMul(uint256 a, uint256 b) internal pure returns (uint256) {
return halfRAY.add(a.mul(b)).div(RAY);
}
function rayDiv(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 halfB = b / 2;
return halfB.add(a.mul(RAY)).div(b);
}
function rayToWad(uint256 a) internal pure returns (uint256) {
uint256 halfRatio = WAD_RAY_RATIO / 2;
return halfRatio.add(a).div(WAD_RAY_RATIO);
}
function rayToPct(uint256 a) internal pure returns (uint16) {
uint256 halfRatio = PCT_RAY_RATIO / 2;
uint256 val = halfRatio.add(a).div(PCT_RAY_RATIO);
return SafeCast.toUint16(val);
}
function wadToPct(uint256 a) internal pure returns (uint16) {
uint256 halfRatio = PCT_WAD_RATIO / 2;
uint256 val = halfRatio.add(a).div(PCT_WAD_RATIO);
return SafeCast.toUint16(val);
}
function wadToRay(uint256 a) internal pure returns (uint256) {
return a.mul(WAD_RAY_RATIO);
}
function pctToRay(uint16 a) internal pure returns (uint256) {
return uint256(a).mul(RAY).div(1e4);
}
function pctToWad(uint16 a) internal pure returns (uint256) {
return uint256(a).mul(WAD).div(1e4);
}
/**
* @dev calculates base^duration. The code uses the ModExp precompile
* @return z base^duration, in ray
*/
function rayPow(uint256 x, uint256 n) internal pure returns (uint256) {
return _pow(x, n, RAY, rayMul);
}
function wadPow(uint256 x, uint256 n) internal pure returns (uint256) {
return _pow(x, n, WAD, wadMul);
}
function _pow(
uint256 x,
uint256 n,
uint256 p,
function(uint256, uint256) internal pure returns (uint256) mul
) internal pure returns (uint256 z) {
z = n % 2 != 0 ? x : p;
for (n /= 2; n != 0; n /= 2) {
x = mul(x, x);
if (n % 2 != 0) {
z = mul(z, x);
}
}
}
}pragma solidity >=0.8.0 <0.9.0;
// SPDX-License-Identifier: MIT
import { IMarketRegistry } from "./interfaces/IMarketRegistry.sol";
import "./interfaces/IEscrowVault.sol";
import "./interfaces/IReputationManager.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "./interfaces/ICollateralManager.sol";
import { PaymentType, PaymentCycleType } from "./libraries/V2Calculations.sol";
import "./interfaces/ILenderManager.sol";
enum BidState {
NONEXISTENT,
PENDING,
CANCELLED,
ACCEPTED,
PAID,
LIQUIDATED,
CLOSED
}
/**
* @notice Represents a total amount for a payment.
* @param principal Amount that counts towards the principal.
* @param interest Amount that counts toward interest.
*/
struct Payment {
uint256 principal;
uint256 interest;
}
/**
* @notice Details about a loan request.
* @param borrower Account address who is requesting a loan.
* @param receiver Account address who will receive the loan amount.
* @param lender Account address who accepted and funded the loan request.
* @param marketplaceId ID of the marketplace the bid was submitted to.
* @param metadataURI ID of off chain metadata to find additional information of the loan request.
* @param loanDetails Struct of the specific loan details.
* @param terms Struct of the loan request terms.
* @param state Represents the current state of the loan.
*/
struct Bid {
address borrower;
address receiver;
address lender; // if this is the LenderManager address, we use that .owner() as source of truth
uint256 marketplaceId;
bytes32 _metadataURI; // DEPRECATED
LoanDetails loanDetails;
Terms terms;
BidState state;
PaymentType paymentType;
}
/**
* @notice Details about the loan.
* @param lendingToken The token address for the loan.
* @param principal The amount of tokens initially lent out.
* @param totalRepaid Payment struct that represents the total principal and interest amount repaid.
* @param timestamp Timestamp, in seconds, of when the bid was submitted by the borrower.
* @param acceptedTimestamp Timestamp, in seconds, of when the bid was accepted by the lender.
* @param lastRepaidTimestamp Timestamp, in seconds, of when the last payment was made
* @param loanDuration The duration of the loan.
*/
struct LoanDetails {
IERC20 lendingToken;
uint256 principal;
Payment totalRepaid;
uint32 timestamp;
uint32 acceptedTimestamp;
uint32 lastRepaidTimestamp;
uint32 loanDuration;
}
/**
* @notice Information on the terms of a loan request
* @param paymentCycleAmount Value of tokens expected to be repaid every payment cycle.
* @param paymentCycle Duration, in seconds, of how often a payment must be made.
* @param APR Annual percentage rating to be applied on repayments. (10000 == 100%)
*/
struct Terms {
uint256 paymentCycleAmount;
uint32 paymentCycle;
uint16 APR;
}
abstract contract TellerV2Storage_G0 {
/** Storage Variables */
// Current number of bids.
uint256 public bidId;
// Mapping of bidId to bid information.
mapping(uint256 => Bid) public bids;
// Mapping of borrowers to borrower requests.
mapping(address => uint256[]) public borrowerBids;
// Mapping of volume filled by lenders.
mapping(address => uint256) public __lenderVolumeFilled; // DEPRECIATED
// Volume filled by all lenders.
uint256 public __totalVolumeFilled; // DEPRECIATED
// List of allowed lending tokens
EnumerableSet.AddressSet internal __lendingTokensSet; // DEPRECATED
IMarketRegistry public marketRegistry;
IReputationManager public reputationManager;
// Mapping of borrowers to borrower requests.
mapping(address => EnumerableSet.UintSet) internal _borrowerBidsActive;
mapping(uint256 => uint32) public bidDefaultDuration;
mapping(uint256 => uint32) public bidExpirationTime;
// Mapping of volume filled by lenders.
// Asset address => Lender address => Volume amount
mapping(address => mapping(address => uint256)) public lenderVolumeFilled;
// Volume filled by all lenders.
// Asset address => Volume amount
mapping(address => uint256) public totalVolumeFilled;
uint256 public version;
// Mapping of metadataURIs by bidIds.
// Bid Id => metadataURI string
mapping(uint256 => string) public uris;
}
abstract contract TellerV2Storage_G1 is TellerV2Storage_G0 {
// market ID => trusted forwarder
mapping(uint256 => address) internal _trustedMarketForwarders;
// trusted forwarder => set of pre-approved senders
mapping(address => EnumerableSet.AddressSet)
internal _approvedForwarderSenders;
}
abstract contract TellerV2Storage_G2 is TellerV2Storage_G1 {
address public lenderCommitmentForwarder;
}
abstract contract TellerV2Storage_G3 is TellerV2Storage_G2 {
ICollateralManager public collateralManager;
}
abstract contract TellerV2Storage_G4 is TellerV2Storage_G3 {
// Address of the lender manager contract
ILenderManager public lenderManager;
// BidId to payment cycle type (custom or monthly)
mapping(uint256 => PaymentCycleType) public bidPaymentCycleType;
}
abstract contract TellerV2Storage_G5 is TellerV2Storage_G4 {
// Address of the lender manager contract
IEscrowVault public escrowVault;
}
abstract contract TellerV2Storage_G6 is TellerV2Storage_G5 {
mapping(uint256 => address) public repaymentListenerForBid;
}
abstract contract TellerV2Storage_G7 is TellerV2Storage_G6 {
mapping(address => bool) private __pauserRoleBearer;
bool private __liquidationsPaused;
}
abstract contract TellerV2Storage_G8 is TellerV2Storage_G7 {
address protocolFeeRecipient;
}
abstract contract TellerV2Storage is TellerV2Storage_G8 {}pragma solidity >=0.8.0 <0.9.0; // SPDX-License-Identifier: MIT // A representation of an empty/uninitialized UUID. bytes32 constant EMPTY_UUID = 0;
{
"optimizer": {
"enabled": true,
"runs": 200
},
"outputSelection": {
"*": {
"*": [
"evm.bytecode",
"evm.deployedBytecode",
"devdoc",
"userdoc",
"metadata",
"abi"
]
}
},
"metadata": {
"useLiteralContent": true
}
}Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
Contract ABI
API[{"inputs":[{"internalType":"address","name":"_tellerV2","type":"address"},{"internalType":"address","name":"_factory","type":"address"},{"internalType":"address","name":"_WETH9","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"borrower","type":"address"},{"indexed":false,"internalType":"uint256","name":"originalLoanId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newLoanId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"fundsRemaining","type":"uint256"}],"name":"RolloverLoanComplete","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newLoanId","type":"uint256"},{"indexed":false,"internalType":"address","name":"flashToken","type":"address"},{"indexed":false,"internalType":"address","name":"rewardRecipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"rewardAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"atmId","type":"uint256"}],"name":"RolloverWithReferral","type":"event"},{"inputs":[],"name":"TELLER_V2","outputs":[{"internalType":"contract ITellerV2","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WETH9","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint16","name":"marketFeePct","type":"uint16"},{"internalType":"uint16","name":"protocolFeePct","type":"uint16"},{"internalType":"uint256","name":"_loanId","type":"uint256"},{"internalType":"uint256","name":"principalAmount","type":"uint256"},{"internalType":"uint256","name":"_rewardAmount","type":"uint256"},{"internalType":"uint16","name":"_flashloanFeePct","type":"uint16"},{"internalType":"uint256","name":"_timestamp","type":"uint256"}],"name":"calculateRolloverAmount","outputs":[{"internalType":"uint256","name":"_flashAmount","type":"uint256"},{"internalType":"int256","name":"_borrowerAmount","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_marketId","type":"uint256"}],"name":"getMarketFeePct","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_lenderCommitmentForwarder","type":"address"},{"internalType":"uint256","name":"_commitmentId","type":"uint256"}],"name":"getMarketIdForCommitment","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"}],"name":"getUniswapPoolAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"refundETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_lenderCommitmentForwarder","type":"address"},{"internalType":"uint256","name":"_loanId","type":"uint256"},{"internalType":"uint256","name":"_borrowerAmount","type":"uint256"},{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"uint256","name":"flashAmount","type":"uint256"},{"internalType":"bool","name":"borrowToken1","type":"bool"}],"internalType":"struct SwapRolloverLoan_G1.FlashSwapArgs","name":"_flashSwapArgs","type":"tuple"},{"components":[{"internalType":"uint256","name":"commitmentId","type":"uint256"},{"internalType":"address","name":"smartCommitmentAddress","type":"address"},{"internalType":"uint256","name":"principalAmount","type":"uint256"},{"internalType":"uint256","name":"collateralAmount","type":"uint256"},{"internalType":"uint256","name":"collateralTokenId","type":"uint256"},{"internalType":"address","name":"collateralTokenAddress","type":"address"},{"internalType":"uint16","name":"interestRate","type":"uint16"},{"internalType":"uint32","name":"loanDuration","type":"uint32"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"internalType":"struct SwapRolloverLoan_G1.AcceptCommitmentArgs","name":"_acceptCommitmentArgs","type":"tuple"}],"name":"rolloverLoanWithFlashSwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_lenderCommitmentForwarder","type":"address"},{"internalType":"uint256","name":"_loanId","type":"uint256"},{"internalType":"uint256","name":"_borrowerAmount","type":"uint256"},{"internalType":"uint256","name":"_rewardAmount","type":"uint256"},{"internalType":"address","name":"_rewardRecipient","type":"address"},{"internalType":"uint256","name":"_atmId","type":"uint256"},{"components":[{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"uint24","name":"fee","type":"uint24"},{"internalType":"uint256","name":"flashAmount","type":"uint256"},{"internalType":"bool","name":"borrowToken1","type":"bool"}],"internalType":"struct SwapRolloverLoan_G1.FlashSwapArgs","name":"_flashSwapArgs","type":"tuple"},{"components":[{"internalType":"uint256","name":"commitmentId","type":"uint256"},{"internalType":"address","name":"smartCommitmentAddress","type":"address"},{"internalType":"uint256","name":"principalAmount","type":"uint256"},{"internalType":"uint256","name":"collateralAmount","type":"uint256"},{"internalType":"uint256","name":"collateralTokenId","type":"uint256"},{"internalType":"address","name":"collateralTokenAddress","type":"address"},{"internalType":"uint16","name":"interestRate","type":"uint16"},{"internalType":"uint32","name":"loanDuration","type":"uint32"},{"internalType":"bytes32[]","name":"merkleProof","type":"bytes32[]"}],"internalType":"struct SwapRolloverLoan_G1.AcceptCommitmentArgs","name":"_acceptCommitmentArgs","type":"tuple"}],"name":"rolloverLoanWithFlashSwapRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"sweepToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"fee0","type":"uint256"},{"internalType":"uint256","name":"fee1","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"uniswapV3FlashCallback","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountMinimum","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"stateMutability":"payable","type":"receive"}]Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
000000000000000000000000f7b14778035feaf44540a0bc1d4ed859bcb28229000000000000000000000000203e8740894c8955cb8950759876d7e7e45e04c1000000000000000000000000ee7d8bcfb72bc1880d0cf19822eb0a2e6577ab62
-----Decoded View---------------
Arg [0] : _tellerV2 (address): 0xf7B14778035fEAF44540A0bC1D4ED859bCB28229
Arg [1] : _factory (address): 0x203e8740894c8955cB8950759876d7E7E45E04c1
Arg [2] : _WETH9 (address): 0xEE7D8BCFb72bC1880D0Cf19822eB0A2e6577aB62
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000f7b14778035feaf44540a0bc1d4ed859bcb28229
Arg [1] : 000000000000000000000000203e8740894c8955cb8950759876d7e7e45e04c1
Arg [2] : 000000000000000000000000ee7d8bcfb72bc1880d0cf19822eb0a2e6577ab62
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0xa77517dA5986793C9FAd1638212DbE05E9f5f0c5
Multichain Portfolio | 35 Chains
| Chain | Token | Portfolio % | Price | Amount | Value |
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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.