编译器
0.8.19+commit.7dd6d404
文件 1 的 23：BaseToken.sol
pragma solidity ^0.8.19;
import {IBaseToken} from "./interfaces/IBaseToken.sol";
import {DateTime} from "./utils/DateTime.sol";
import {ERC20Permit} from "@openzeppelin/contracts@4.9.3/token/ERC20/extensions/ERC20Permit.sol";
abstract contract BaseToken is ERC20Permit, IBaseToken {
function maturity() external view virtual returns (uint256);
function target() external view virtual returns (address);
function _toDateString(uint256 _maturity) internal pure returns (string memory) {
(string memory d, string memory m, string memory y) = DateTime.toDateString(_maturity);
return string.concat(d, "-", m, "-", y);
}
}
文件 2 的 23：Context.sol
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
文件 3 的 23：Counters.sol
pragma solidity ^0.8.0;
library Counters {
struct Counter {
uint256 _value;
}
function current(Counter storage counter) internal view returns (uint256) {
return counter._value;
}
function increment(Counter storage counter) internal {
unchecked {
counter._value += 1;
}
}
function decrement(Counter storage counter) internal {
uint256 value = counter._value;
require(value > 0, "Counter: decrement overflow");
unchecked {
counter._value = value - 1;
}
}
function reset(Counter storage counter) internal {
counter._value = 0;
}
}
文件 4 的 23：DateTime.sol
pragma solidity >=0.6.0 <0.9.0;
library DateTime {
uint256 constant SECONDS_PER_DAY = 24 * 60 * 60;
uint256 constant SECONDS_PER_HOUR = 60 * 60;
uint256 constant SECONDS_PER_MINUTE = 60;
int256 constant OFFSET19700101 = 2440588;
function timestampToDate(uint256 timestamp) internal pure returns (uint256 year, uint256 month, uint256 day) {
(year, month, day) = _daysToDate(timestamp / SECONDS_PER_DAY);
}
function timestampToDateTime(
uint256 timestamp
) internal pure returns (uint256 year, uint256 month, uint256 day, uint256 hour, uint256 minute, uint256 second) {
(year, month, day) = _daysToDate(timestamp / SECONDS_PER_DAY);
uint256 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 toDateString(
uint256 _timestamp
) internal pure returns (string memory d, string memory m, string memory y) {
(uint256 year, uint256 month, uint256 day) = timestampToDate(_timestamp);
d = uintToString(day);
m = uintToString(month);
y = uintToString(year);
}
function getDayOfWeek(uint256 timestamp) internal pure returns (uint256 dayOfWeek) {
uint256 _days = timestamp / SECONDS_PER_DAY;
dayOfWeek = ((_days + 3) % 7) + 1;
}
function uintToString(uint256 _i) internal pure returns (string memory _uintAsString) {
if (_i == 0) {
return "0";
}
uint256 j = _i;
uint256 len;
while (j != 0) {
len++;
j /= 10;
}
bytes memory bstr = new bytes(len);
uint256 k = len;
while (_i != 0) {
k = k - 1;
uint8 temp = (48 + uint8(_i - (_i / 10) * 10));
bytes1 b1 = bytes1(temp);
bstr[k] = b1;
_i /= 10;
}
return string(bstr);
}
function _daysFromDate(uint256 year, uint256 month, uint256 day) internal pure returns (uint256 _days) {
require(year >= 1970);
int256 _year = int256(year);
int256 _month = int256(month);
int256 _day = int256(day);
int256 __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 = uint256(__days);
}
function _daysToDate(uint256 _days) internal pure returns (uint256 year, uint256 month, uint256 day) {
int256 __days = int256(_days);
int256 L = __days + 68569 + OFFSET19700101;
int256 N = (4 * L) / 146097;
L = L - (146097 * N + 3) / 4;
int256 _year = (4000 * (L + 1)) / 1461001;
L = L - (1461 * _year) / 4 + 31;
int256 _month = (80 * L) / 2447;
int256 _day = L - (2447 * _month) / 80;
L = _month / 11;
_month = _month + 2 - 12 * L;
_year = 100 * (N - 49) + _year + L;
year = uint256(_year);
month = uint256(_month);
day = uint256(_day);
}
}
文件 5 的 23：ECDSA.sol
pragma solidity ^0.8.0;
import "../Strings.sol";
library ECDSA {
enum RecoverError {
NoError,
InvalidSignature,
InvalidSignatureLength,
InvalidSignatureS,
InvalidSignatureV
}
function _throwError(RecoverError error) private pure {
if (error == RecoverError.NoError) {
return;
} else if (error == RecoverError.InvalidSignature) {
revert("ECDSA: invalid signature");
} else if (error == RecoverError.InvalidSignatureLength) {
revert("ECDSA: invalid signature length");
} else if (error == RecoverError.InvalidSignatureS) {
revert("ECDSA: invalid signature 's' value");
}
}
function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
if (signature.length == 65) {
bytes32 r;
bytes32 s;
uint8 v;
assembly {
r := mload(add(signature, 0x20))
s := mload(add(signature, 0x40))
v := byte(0, mload(add(signature, 0x60)))
}
return tryRecover(hash, v, r, s);
} else {
return (address(0), RecoverError.InvalidSignatureLength);
}
}
function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, signature);
_throwError(error);
return recovered;
}
function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
uint8 v = uint8((uint256(vs) >> 255) + 27);
return tryRecover(hash, v, r, s);
}
function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, r, vs);
_throwError(error);
return recovered;
}
function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
return (address(0), RecoverError.InvalidSignatureS);
}
address signer = ecrecover(hash, v, r, s);
if (signer == address(0)) {
return (address(0), RecoverError.InvalidSignature);
}
return (signer, RecoverError.NoError);
}
function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
(address recovered, RecoverError error) = tryRecover(hash, v, r, s);
_throwError(error);
return recovered;
}
function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
assembly {
mstore(0x00, "\x19Ethereum Signed Message:\n32")
mstore(0x1c, hash)
message := keccak256(0x00, 0x3c)
}
}
function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
}
function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
assembly {
let ptr := mload(0x40)
mstore(ptr, "\x19\x01")
mstore(add(ptr, 0x02), domainSeparator)
mstore(add(ptr, 0x22), structHash)
data := keccak256(ptr, 0x42)
}
}
function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
return keccak256(abi.encodePacked("\x19\x00", validator, data));
}
}
文件 6 的 23：EIP712.sol
pragma solidity ^0.8.8;
import "./ECDSA.sol";
import "../ShortStrings.sol";
import "../../interfaces/IERC5267.sol";
abstract contract EIP712 is IERC5267 {
using ShortStrings for *;
bytes32 private constant _TYPE_HASH =
keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
bytes32 private immutable _cachedDomainSeparator;
uint256 private immutable _cachedChainId;
address private immutable _cachedThis;
bytes32 private immutable _hashedName;
bytes32 private immutable _hashedVersion;
ShortString private immutable _name;
ShortString private immutable _version;
string private _nameFallback;
string private _versionFallback;
constructor(string memory name, string memory version) {
_name = name.toShortStringWithFallback(_nameFallback);
_version = version.toShortStringWithFallback(_versionFallback);
_hashedName = keccak256(bytes(name));
_hashedVersion = keccak256(bytes(version));
_cachedChainId = block.chainid;
_cachedDomainSeparator = _buildDomainSeparator();
_cachedThis = address(this);
}
function _domainSeparatorV4() internal view returns (bytes32) {
if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
return _cachedDomainSeparator;
} else {
return _buildDomainSeparator();
}
}
function _buildDomainSeparator() private view returns (bytes32) {
return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
}
function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
}
function eip712Domain()
public
view
virtual
override
returns (
bytes1 fields,
string memory name,
string memory version,
uint256 chainId,
address verifyingContract,
bytes32 salt,
uint256[] memory extensions
)
{
return (
hex"0f",
_name.toStringWithFallback(_nameFallback),
_version.toStringWithFallback(_versionFallback),
block.chainid,
address(this),
bytes32(0),
new uint256[](0)
);
}
}
文件 7 的 23：ERC20.sol
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 18;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
function _transfer(address from, address to, uint256 amount) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
function _approve(address owner, address spender, uint256 amount) internal virtual {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}
function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}
文件 8 的 23：ERC20Permit.sol
pragma solidity ^0.8.0;
import "./IERC20Permit.sol";
import "../ERC20.sol";
import "../../../utils/cryptography/ECDSA.sol";
import "../../../utils/cryptography/EIP712.sol";
import "../../../utils/Counters.sol";
abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 {
using Counters for Counters.Counter;
mapping(address => Counters.Counter) private _nonces;
bytes32 private constant _PERMIT_TYPEHASH =
keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT;
constructor(string memory name) EIP712(name, "1") {}
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) public virtual override {
require(block.timestamp <= deadline, "ERC20Permit: expired deadline");
bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));
bytes32 hash = _hashTypedDataV4(structHash);
address signer = ECDSA.recover(hash, v, r, s);
require(signer == owner, "ERC20Permit: invalid signature");
_approve(owner, spender, value);
}
function nonces(address owner) public view virtual override returns (uint256) {
return _nonces[owner].current();
}
function DOMAIN_SEPARATOR() external view override returns (bytes32) {
return _domainSeparatorV4();
}
function _useNonce(address owner) internal virtual returns (uint256 current) {
Counters.Counter storage nonce = _nonces[owner];
current = nonce.current();
nonce.increment();
}
}
文件 9 的 23：IBaseToken.sol
pragma solidity ^0.8.0;
import {IERC20} from "@openzeppelin/contracts@4.9.3/token/ERC20/IERC20.sol";
interface IBaseToken is IERC20 {
function maturity() external view returns (uint256);
function target() external view returns (address);
}
文件 10 的 23：IERC20.sol
pragma solidity ^0.8.0;
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(address to, uint256 amount) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
文件 11 的 23：IERC20Metadata.sol
pragma solidity ^0.8.0;
import "../IERC20.sol";
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
文件 12 的 23：IERC20Permit.sol
pragma solidity ^0.8.0;
interface IERC20Permit {
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
function nonces(address owner) external view returns (uint256);
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
文件 13 的 23：IERC5095.sol
pragma solidity ^0.8.0;
import {IERC20} from "@openzeppelin/contracts@4.9.3/token/ERC20/IERC20.sol";
interface IERC5095 is IERC20 {
event Redeem(address indexed from, address indexed to, uint256 underlyingAmount);
function underlying() external view returns (address underlyingAddress);
function maturity() external view returns (uint256 timestamp);
function convertToUnderlying(uint256 principalAmount) external view returns (uint256 underlyingAmount);
function convertToPrincipal(uint256 underlyingAmount) external view returns (uint256 principalAmount);
function maxRedeem(address holder) external view returns (uint256 maxPrincipalAmount);
function previewRedeem(uint256 principalAmount) external view returns (uint256 underlyingAmount);
function redeem(uint256 principalAmount, address to, address from) external returns (uint256 underlyingAmount);
function maxWithdraw(address holder) external view returns (uint256 maxUnderlyingAmount);
function previewWithdraw(uint256 underlyingAmount) external view returns (uint256 principalAmount);
function withdraw(uint256 underlyingAmount, address to, address from) external returns (uint256 principalAmount);
}
文件 14 的 23：IERC5267.sol
pragma solidity ^0.8.0;
interface IERC5267 {
event EIP712DomainChanged();
function eip712Domain()
external
view
returns (
bytes1 fields,
string memory name,
string memory version,
uint256 chainId,
address verifyingContract,
bytes32 salt,
uint256[] memory extensions
);
}
文件 15 的 23：ITranche.sol
pragma solidity ^0.8.0;
import {IERC5095} from "./IERC5095.sol";
interface ITranche is IERC5095 {
error TimestampBeforeMaturity();
error TimestampAfterMaturity();
error ProtectedToken();
error Unauthorized();
error OnlyYT();
error ReentrancyGuarded();
error ZeroAddress();
error NoAccruedYield();
event SeriesCreated(address indexed adapter, uint256 indexed maturity, uint256 issuanceFee);
event Issue(address indexed from, address indexed to, uint256 underlyingUsed, uint256 sharesUsed);
event Collect(address indexed owner, uint256 shares);
event RedeemWithYT(address indexed owner, address indexed to, uint256 underlyingRedeemed);
struct Series {
address underlying;
address target;
address yt;
address adapter;
uint256 mscale;
uint256 maxscale;
uint64 issuanceFee;
uint64 maturity;
}
struct GlobalScales {
uint128 mscale;
uint128 maxscale;
}
function issue(address to, uint256 underlyingAmount) external returns (uint256 principalAmount);
function redeemWithYT(address from, address to, uint256 pyAmount) external returns (uint256 underlyingAmount);
function collect() external returns (uint256 collected);
function updateUnclaimedYield(address from, address to, uint256 value) external;
function yieldToken() external view returns (address);
function getSeries() external view returns (Series memory);
function unclaimedYields(address account) external view returns (uint256 accruedInTarget);
function previewCollect(address account) external view returns (uint256 accruedInUnderlying);
}
文件 16 的 23：IYieldToken.sol
pragma solidity ^0.8.0;
import {IBaseToken} from "./IBaseToken.sol";
interface IYieldToken is IBaseToken {
error OnlyTranche();
function tranche() external view returns (address);
function mint(address to, uint256 amount) external;
function burn(address owner, uint256 amount) external;
function burnFrom(address owner, address spender, uint256 amount) external;
}
文件 17 的 23：Math.sol
pragma solidity ^0.8.0;
library Math {
enum Rounding {
Down,
Up,
Zero
}
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
function average(uint256 a, uint256 b) internal pure returns (uint256) {
return (a & b) + (a ^ b) / 2;
}
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
return a == 0 ? 0 : (a - 1) / b + 1;
}
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
uint256 prod0;
uint256 prod1;
assembly {
let mm := mulmod(x, y, not(0))
prod0 := mul(x, y)
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
if (prod1 == 0) {
return prod0 / denominator;
}
require(denominator > prod1, "Math: mulDiv overflow");
uint256 remainder;
assembly {
remainder := mulmod(x, y, denominator)
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
uint256 twos = denominator & (~denominator + 1);
assembly {
denominator := div(denominator, twos)
prod0 := div(prod0, twos)
twos := add(div(sub(0, twos), twos), 1)
}
prod0 |= prod1 * twos;
uint256 inverse = (3 * denominator) ^ 2;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
inverse *= 2 - denominator * inverse;
result = prod0 * inverse;
return result;
}
}
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;
}
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
uint256 result = 1 << (log2(a) >> 1);
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);
}
}
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);
}
}
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;
}
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);
}
}
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;
}
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);
}
}
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;
}
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
}
}
}
文件 18 的 23：SafeERC20Namer.sol
pragma solidity ^0.8.0;
import {Strings} from "@openzeppelin/contracts@4.9.3/utils/Strings.sol";
library SafeERC20Namer {
function bytes32ToString(bytes32 x) private pure returns (string memory) {
bytes memory bytesString = new bytes(32);
uint256 charCount = 0;
for (uint256 j; j < 32; j++) {
bytes1 char = x[j];
if (char != 0) {
bytesString[charCount] = char;
charCount++;
}
}
bytes memory bytesStringTrimmed = new bytes(charCount);
for (uint256 j; j < charCount; j++) {
bytesStringTrimmed[j] = bytesString[j];
}
return string(bytesStringTrimmed);
}
function parseStringData(bytes memory b) private pure returns (string memory) {
uint256 charCount = 0;
for (uint256 i = 32; i < 64; i++) {
charCount <<= 8;
charCount += uint8(b[i]);
}
bytes memory bytesStringTrimmed = new bytes(charCount);
for (uint256 i; i < charCount; i++) {
bytesStringTrimmed[i] = b[i + 64];
}
return string(bytesStringTrimmed);
}
function addressToName(address token) private pure returns (string memory) {
return Strings.toHexString(token);
}
function addressToSymbol(address token) private pure returns (string memory) {
return Strings.toHexString(token);
}
function callAndParseStringReturn(address token, bytes4 selector) private view returns (string memory) {
(bool success, bytes memory data) = token.staticcall(abi.encodeWithSelector(selector));
if (!success || data.length == 0) {
return "";
}
if (data.length == 32) {
bytes32 decoded = abi.decode(data, (bytes32));
return bytes32ToString(decoded);
} else if (data.length > 64) {
return abi.decode(data, (string));
}
return "";
}
function tokenSymbol(address token) internal view returns (string memory) {
string memory symbol = callAndParseStringReturn(token, 0x95d89b41);
if (bytes(symbol).length == 0) {
return addressToSymbol(token);
}
return symbol;
}
function tokenName(address token) internal view returns (string memory) {
string memory name = callAndParseStringReturn(token, 0x06fdde03);
if (bytes(name).length == 0) {
return addressToName(token);
}
return name;
}
}
文件 19 的 23：ShortStrings.sol
pragma solidity ^0.8.8;
import "./StorageSlot.sol";
type ShortString is bytes32;
library ShortStrings {
bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;
error StringTooLong(string str);
error InvalidShortString();
function toShortString(string memory str) internal pure returns (ShortString) {
bytes memory bstr = bytes(str);
if (bstr.length > 31) {
revert StringTooLong(str);
}
return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
}
function toString(ShortString sstr) internal pure returns (string memory) {
uint256 len = byteLength(sstr);
string memory str = new string(32);
assembly {
mstore(str, len)
mstore(add(str, 0x20), sstr)
}
return str;
}
function byteLength(ShortString sstr) internal pure returns (uint256) {
uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
if (result > 31) {
revert InvalidShortString();
}
return result;
}
function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
if (bytes(value).length < 32) {
return toShortString(value);
} else {
StorageSlot.getStringSlot(store).value = value;
return ShortString.wrap(_FALLBACK_SENTINEL);
}
}
function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
return toString(value);
} else {
return store;
}
}
function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
return byteLength(value);
} else {
return bytes(store).length;
}
}
}
文件 20 的 23：SignedMath.sol
pragma solidity ^0.8.0;
library SignedMath {
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
function average(int256 a, int256 b) internal pure returns (int256) {
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
function abs(int256 n) internal pure returns (uint256) {
unchecked {
return uint256(n >= 0 ? n : -n);
}
}
}
文件 21 的 23：StorageSlot.sol
pragma solidity ^0.8.0;
library StorageSlot {
struct AddressSlot {
address value;
}
struct BooleanSlot {
bool value;
}
struct Bytes32Slot {
bytes32 value;
}
struct Uint256Slot {
uint256 value;
}
struct StringSlot {
string value;
}
struct BytesSlot {
bytes value;
}
function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
assembly {
r.slot := slot
}
}
function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
assembly {
r.slot := slot
}
}
function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
assembly {
r.slot := slot
}
}
function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
assembly {
r.slot := slot
}
}
function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
assembly {
r.slot := slot
}
}
function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
assembly {
r.slot := store.slot
}
}
function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
assembly {
r.slot := slot
}
}
function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
assembly {
r.slot := store.slot
}
}
}
文件 22 的 23：Strings.sol
pragma solidity ^0.8.0;
import "./math/Math.sol";
import "./math/SignedMath.sol";
library Strings {
bytes16 private constant _SYMBOLS = "0123456789abcdef";
uint8 private constant _ADDRESS_LENGTH = 20;
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
assembly {
mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
function toString(int256 value) internal pure returns (string memory) {
return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
}
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = _SYMBOLS[value & 0xf];
value >>= 4;
}
require(value == 0, "Strings: hex length insufficient");
return string(buffer);
}
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
}
function equal(string memory a, string memory b) internal pure returns (bool) {
return keccak256(bytes(a)) == keccak256(bytes(b));
}
}
文件 23 的 23：YieldToken.sol
pragma solidity ^0.8.19;
import {IERC20} from "@openzeppelin/contracts@4.9.3/token/ERC20/IERC20.sol";
import {IYieldToken} from "./interfaces/IYieldToken.sol";
import {IBaseToken} from "./interfaces/IBaseToken.sol";
import {ITranche} from "./interfaces/ITranche.sol";
import {SafeERC20Namer} from "./utils/SafeERC20Namer.sol";
import {ERC20Permit, ERC20} from "@openzeppelin/contracts@4.9.3/token/ERC20/extensions/ERC20Permit.sol";
import {BaseToken} from "./BaseToken.sol";
contract YieldToken is BaseToken, IYieldToken {
uint8 private immutable uDecimals;
address public immutable underlying;
address public immutable override tranche;
uint256 public immutable override(IBaseToken, BaseToken) maturity;
address public immutable override(IBaseToken, BaseToken) target;
modifier onlyTranche() {
if (msg.sender != tranche) revert OnlyTranche();
_;
}
constructor(
address _tranche,
address _underlying,
address _target,
uint256 _maturity
) payable ERC20("Napier Yield Token", "eYT") ERC20Permit("Napier Yield Token") {
underlying = _underlying;
tranche = _tranche;
maturity = _maturity;
target = _target;
uDecimals = ERC20(_underlying).decimals();
}
function mint(address to, uint256 amount) external override onlyTranche {
_mint(to, amount);
}
function burn(address owner, uint256 amount) external override onlyTranche {
_burn(owner, amount);
}
function burnFrom(address owner, address spender, uint256 amount) external override onlyTranche {
if (owner != spender) {
_spendAllowance(owner, spender, amount);
}
_burn(owner, amount);
}
function transfer(address to, uint256 amount) public override(ERC20, IERC20) returns (bool) {
ITranche(tranche).updateUnclaimedYield(msg.sender, to, amount);
return super.transfer(to, amount);
}
function transferFrom(address from, address to, uint256 amount) public override(ERC20, IERC20) returns (bool) {
ITranche(tranche).updateUnclaimedYield(from, to, amount);
return super.transferFrom(from, to, amount);
}
function name() public view override returns (string memory) {
string memory tokenName = SafeERC20Namer.tokenName(target);
return string.concat("Napier Yield Token ", tokenName, "@", _toDateString(maturity));
}
function symbol() public view override returns (string memory) {
string memory tokenSymbol = SafeERC20Namer.tokenSymbol(target);
return string.concat("YT-", tokenSymbol, "@", _toDateString(maturity));
}
function decimals() public view override returns (uint8) {
return uDecimals;
}
}
{
"compilationTarget": {
"src/YieldToken.sol": "YieldToken"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "none"
},
"optimizer": {
"enabled": true,
"runs": 2000
},
"remappings": [
":@openzeppelin/contracts@4.9.3/=lib/openzeppelin-contracts/contracts/",
":ds-test/=lib/forge-std/lib/ds-test/src/",
":erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
":eth-gas-reporter/=node_modules/eth-gas-reporter/",
":forge-std/=lib/forge-std/src/",
":hardhat-deployer/=lib/hardhat-deployer/src/",
":hardhat/=node_modules/hardhat/",
":openzeppelin-contracts/=lib/openzeppelin-contracts/",
":openzeppelin/=lib/openzeppelin-contracts/contracts/"
]
}[{"inputs":[{"internalType":"address","name":"_tranche","type":"address"},{"internalType":"address","name":"_underlying","type":"address"},{"internalType":"address","name":"_target","type":"address"},{"internalType":"uint256","name":"_maturity","type":"uint256"}],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"InvalidShortString","type":"error"},{"inputs":[],"name":"OnlyTranche","type":"error"},{"inputs":[{"internalType":"string","name":"str","type":"string"}],"name":"StringTooLong","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[],"name":"EIP712DomainChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"burnFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"eip712Domain","outputs":[{"internalType":"bytes1","name":"fields","type":"bytes1"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"version","type":"string"},{"internalType":"uint256","name":"chainId","type":"uint256"},{"internalType":"address","name":"verifyingContract","type":"address"},{"internalType":"bytes32","name":"salt","type":"bytes32"},{"internalType":"uint256[]","name":"extensions","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"maturity","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"target","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tranche","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"underlying","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]
