Description:
Multi-signature wallet contract requiring multiple confirmations for transaction execution.
Blockchain: Ethereum
Source Code: View Code On The Blockchain
Solidity Source Code:
{{
"language": "Solidity",
"sources": {
"EPICswap/selldemo.sol": {
"content": "// SPDX-License-Identifier: MIT\r
pragma solidity ^0.8.24;\r
\r
import {IPoolManager} from "@uniswap/v4-core/src/interfaces/IPoolManager.sol";\r
import {PoolKey} from "@uniswap/v4-core/src/types/PoolKey.sol";\r
import {Currency, CurrencyLibrary} from "@uniswap/v4-core/src/types/Currency.sol";\r
import {IHooks} from "@uniswap/v4-core/src/interfaces/IHooks.sol";\r
import {BalanceDelta} from "@uniswap/v4-core/src/types/BalanceDelta.sol";\r
import {IUnlockCallback} from "@uniswap/v4-core/src/interfaces/callback/IUnlockCallback.sol";\r
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";\r
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";\r
\r
/// @title SwapTokenV4 - Uniswap V4 交易合约\r
/// @notice 用于在 Uniswap V4 上卖出 token1 换取 ETH (currency0)\r
/// @dev 使用 unlock-callback 模式与 PoolManager 交互\r
contract SwapTokenV4 is IUnlockCallback {\r
using CurrencyLibrary for Currency;\r
using SafeERC20 for IERC20;\r
\r
// Uniswap V4 合约地址\r
IPoolManager public constant POOL_MANAGER = IPoolManager(0x000000000004444c5dc75cB358380D2e3dE08A90);\r
\r
// 池子配置\r
Currency public constant CURRENCY0 = Currency.wrap(address(0)); // ETH\r
Currency public constant CURRENCY1 = Currency.wrap(0x94314a14Df63779c99C0764a30e0CD22fA78fC0E); // Token\r
uint24 public constant FEE = 3000; // 0.3%\r
int24 public constant TICK_SPACING = 60;\r
IHooks public constant HOOKS = IHooks(address(0));\r
\r
PoolKey public poolKey;\r
\r
// 交易参数结构体\r
struct SwapCallbackData {\r
address sender;\r
bool zeroForOne;\r
int256 amountSpecified;\r
uint256 minAmountOut;\r
}\r
\r
error InsufficientOutput();\r
error Unauthorized();\r
\r
constructor() {\r
// 初始化 PoolKey\r
poolKey = PoolKey({\r
currency0: CURRENCY0,\r
currency1: CURRENCY1,\r
fee: FEE,\r
tickSpacing: TICK_SPACING,\r
hooks: HOOKS\r
});\r
}\r
\r
/// @notice 卖出 token1 换取 ETH（精确输入）\r
/// @param amountIn 要卖出的 token1 数量\r
/// @param amountOutMinimum 最小获得的 ETH 数量（滑点保护）\r
/// @return amountOut 实际获得的 ETH 数量\r
function sellToken1(\r
uint256 amountIn,\r
uint256 amountOutMinimum\r
) external returns (uint256 amountOut) {\r
require(amountIn > 0, "Amount must be greater than 0");\r
\r
// 从用户转入 token1\r
IERC20(Currency.unwrap(CURRENCY1)).safeTransferFrom(\r
msg.sender,\r
address(this),\r
amountIn\r
);\r
\r
// 准备回调数据\r
SwapCallbackData memory data = SwapCallbackData({\r
sender: msg.sender,\r
zeroForOne: false, // 从 token1 到 token0 (ETH)\r
amountSpecified: -int256(amountIn), // 负数表示精确输入\r
minAmountOut: amountOutMinimum\r
});\r
\r
// 通过 unlock 执行交易\r
bytes memory result = POOL_MANAGER.unlock(\r
abi.encode(data)\r
);\r
\r
amountOut = abi.decode(result, (uint256));\r
\r
return amountOut;\r
}\r
\r
/// @notice Uniswap V4 unlock 回调函数\r
/// @param data 编码后的交易数据\r
/// @return 编码后的返回数据\r
function unlockCallback(\r
bytes calldata data\r
) external override returns (bytes memory) {\r
require(msg.sender == address(POOL_MANAGER), "Unauthorized");\r
\r
SwapCallbackData memory swapData = abi.decode(data, (SwapCallbackData));\r
\r
// 设置交易参数\r
IPoolManager.SwapParams memory params = IPoolManager.SwapParams({\r
zeroForOne: swapData.zeroForOne,\r
amountSpecified: swapData.amountSpecified,\r
sqrtPriceLimitX96: swapData.zeroForOne\r
? 4295128740 // MIN_SQRT_RATIO + 1\r
: 1461446703485210103287273052203988822378723970341 // MAX_SQRT_RATIO - 1\r
});\r
\r
// 执行交易\r
BalanceDelta delta = POOL_MANAGER.swap(poolKey, params, "");\r
\r
// 处理结算\r
int128 delta0 = delta.amount0();\r
int128 delta1 = delta.amount1();\r
\r
uint256 amountOut;\r
\r
if (swapData.zeroForOne) {\r
// token0 -> token1\r
if (delta0 < 0) {\r
// 我们需要支付 token0 (ETH)\r
_settleCurrency(CURRENCY0, uint128(-delta0));\r
}\r
if (delta1 > 0) {\r
// 我们收到 token1\r
amountOut = uint128(delta1);\r
_takeCurrency(CURRENCY1, swapData.sender, amountOut);\r
}\r
} else {\r
// token1 -> token0 (我们的情况: 卖出 token1 换 ETH)\r
if (delta1 < 0) {\r
// 我们需要支付 token1\r
_settleCurrency(CURRENCY1, uint128(-delta1));\r
}\r
if (delta0 > 0) {\r
// 我们收到 token0 (ETH)\r
amountOut = uint128(delta0);\r
_takeCurrency(CURRENCY0, swapData.sender, amountOut);\r
}\r
}\r
\r
// 检查滑点\r
if (amountOut < swapData.minAmountOut) {\r
revert InsufficientOutput();\r
}\r
\r
return abi.encode(amountOut);\r
}\r
\r
/// @notice 向 PoolManager 支付代币\r
/// @param currency 要支付的货币\r
/// @param amount 支付数量\r
function _settleCurrency(Currency currency, uint128 amount) internal {\r
if (Currency.unwrap(currency) == address(0)) {\r
// 支付 ETH\r
POOL_MANAGER.settle{value: amount}();\r
} else {\r
// 支付 ERC20 - 先转账给 PoolManager\r
IERC20(Currency.unwrap(currency)).safeTransfer(\r
address(POOL_MANAGER),\r
amount\r
);\r
// 然后调用 settle\r
POOL_MANAGER.settle();\r
}\r
}\r
\r
/// @notice 从 PoolManager 提取代币\r
/// @param currency 要提取的货币\r
/// @param to 接收地址\r
/// @param amount 提取数量\r
function _takeCurrency(Currency currency, address to, uint256 amount) internal {\r
POOL_MANAGER.take(currency, to, amount);\r
}\r
\r
/// @notice 获取交易报价（使用 Quoter 合约）\r
/// @param amountIn 输入的 token1 数量\r
/// @return amountOut 预计获得的 ETH 数量\r
/// @dev 需要调用 Quoter 合约: 0x52f0e24d1c21c8a0cb1e5a5dd6198556bd9e1203\r
function getQuote(uint256 amountIn) external returns (uint256 amountOut) {\r
// 这里需要调用 Quoter 合约\r
// 简化实现，实际使用时需要导入 Quoter 接口\r
revert("Use Quoter contract at 0x52f0e24d1c21c8a0cb1e5a5dd6198556bd9e1203");\r
}\r
\r
/// @notice 接收 ETH\r
receive() external payable {}\r
\r
/// @notice 紧急提取（仅用于救援意外发送的代币）\r
function emergencyWithdraw(address token) external {\r
if (token == address(0)) {\r
payable(msg.sender).transfer(address(this).balance);\r
} else {\r
uint256 balance = IERC20(token).balanceOf(address(this));\r
IERC20(token).safeTransfer(msg.sender, balance);\r
}\r
}\r
}\r
"
},
"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.20;
import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC-20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
/**
* @dev An operation with an ERC-20 token failed.
*/
error SafeERC20FailedOperation(address token);
/**
* @dev Indicates a failed `decreaseAllowance` request.
*/
error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
}
/**
* @dev Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
*/
function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
}
/**
* @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
*/
function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
return _callOptionalReturnBool(token, abi.encodeCall(token.transferFrom, (from, to, value)));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*
* IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
* smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
* this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
* that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
forceApprove(token, spender, oldAllowance + value);
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
* value, non-reverting calls are assumed to be successful.
*
* IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
* smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
* this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
* that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
unchecked {
uint256 currentAllowance = token.allowance(address(this), spender);
if (currentAllowance < requestedDecrease) {
revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
}
forceApprove(token, spender, currentAllowance - requestedDecrease);
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
* to be set to zero before setting it to a non-zero value, such as USDT.
*
* NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
* only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
* set here.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
* code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
* targeting contracts.
*
* Reverts if the returned value is other than `true`.
*/
function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
if (to.code.length == 0) {
safeTransfer(token, to, value);
} else if (!token.transferAndCall(to, value, data)) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
* has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
* targeting contracts.
*
* Reverts if the returned value is other than `true`.
*/
function transferFromAndCallRelaxed(
IERC1363 token,
address from,
address to,
uint256 value,
bytes memory data
) internal {
if (to.code.length == 0) {
safeTransferFrom(token, from, to, value);
} else if (!token.transferFromAndCall(from, to, value, data)) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
* code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
* targeting contracts.
*
* NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
* Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
* once without retrying, and relies on the returned value to be true.
*
* Reverts if the returned value is other than `true`.
*/
function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
if (to.code.length == 0) {
forceApprove(token, to, value);
} else if (!token.approveAndCall(to, value, data)) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
uint256 returnSize;
uint256 returnValue;
assembly ("memory-safe") {
let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
// bubble errors
if iszero(success) {
let ptr := mload(0x40)
returndatacopy(ptr, 0, returndatasize())
revert(ptr, returndatasize())
}
returnSize := returndatasize()
returnValue := mload(0)
}
if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
revert SafeERC20FailedOperation(address(token));
}
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
bool success;
uint256 returnSize;
uint256 returnValue;
assembly ("memory-safe") {
success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
returnSize := returndatasize()
returnValue := mload(0)
}
return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
}
}
"
},
"@openzeppelin/contracts/token/ERC20/IERC20.sol": {
"content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)
pragma solidity >=0.4.16;
/**
* @dev Interface of the ERC-20 standard as defined in the ERC.
*/
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 value of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the value of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);
/**
* @dev Moves a `value` amount of tokens from `from` to `to` using the
* allowance mechanism. `value` 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 value) external returns (bool);
}
"
},
"@uniswap/v4-core/src/interfaces/callback/IUnlockCallback.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @notice Interface for the callback executed when an address unlocks the pool manager
interface IUnlockCallback {
/// @notice Called by the pool manager on `msg.sender` when the manager is unlocked
/// @param data The data that was passed to the call to unlock
/// @return Any data that you want to be returned from the unlock call
function unlockCallback(bytes calldata data) external returns (bytes memory);
}
"
},
"@uniswap/v4-core/src/types/BalanceDelta.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {SafeCast} from "../libraries/SafeCast.sol";
/// @dev Two `int128` values packed into a single `int256` where the upper 128 bits represent the amount0
/// and the lower 128 bits represent the amount1.
type BalanceDelta is int256;
using {add as +, sub as -, eq as ==, neq as !=} for BalanceDelta global;
using BalanceDeltaLibrary for BalanceDelta global;
using SafeCast for int256;
function toBalanceDelta(int128 _amount0, int128 _amount1) pure returns (BalanceDelta balanceDelta) {
assembly ("memory-safe") {
balanceDelta := or(shl(128, _amount0), and(sub(shl(128, 1), 1), _amount1))
}
}
function add(BalanceDelta a, BalanceDelta b) pure returns (BalanceDelta) {
int256 res0;
int256 res1;
assembly ("memory-safe") {
let a0 := sar(128, a)
let a1 := signextend(15, a)
let b0 := sar(128, b)
let b1 := signextend(15, b)
res0 := add(a0, b0)
res1 := add(a1, b1)
}
return toBalanceDelta(res0.toInt128(), res1.toInt128());
}
function sub(BalanceDelta a, BalanceDelta b) pure returns (BalanceDelta) {
int256 res0;
int256 res1;
assembly ("memory-safe") {
let a0 := sar(128, a)
let a1 := signextend(15, a)
let b0 := sar(128, b)
let b1 := signextend(15, b)
res0 := sub(a0, b0)
res1 := sub(a1, b1)
}
return toBalanceDelta(res0.toInt128(), res1.toInt128());
}
function eq(BalanceDelta a, BalanceDelta b) pure returns (bool) {
return BalanceDelta.unwrap(a) == BalanceDelta.unwrap(b);
}
function neq(BalanceDelta a, BalanceDelta b) pure returns (bool) {
return BalanceDelta.unwrap(a) != BalanceDelta.unwrap(b);
}
/// @notice Library for getting the amount0 and amount1 deltas from the BalanceDelta type
library BalanceDeltaLibrary {
/// @notice A BalanceDelta of 0
BalanceDelta public constant ZERO_DELTA = BalanceDelta.wrap(0);
function amount0(BalanceDelta balanceDelta) internal pure returns (int128 _amount0) {
assembly ("memory-safe") {
_amount0 := sar(128, balanceDelta)
}
}
function amount1(BalanceDelta balanceDelta) internal pure returns (int128 _amount1) {
assembly ("memory-safe") {
_amount1 := signextend(15, balanceDelta)
}
}
}
"
},
"@uniswap/v4-core/src/interfaces/IHooks.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {PoolKey} from "../types/PoolKey.sol";
import {BalanceDelta} from "../types/BalanceDelta.sol";
import {IPoolManager} from "./IPoolManager.sol";
import {BeforeSwapDelta} from "../types/BeforeSwapDelta.sol";
/// @notice V4 decides whether to invoke specific hooks by inspecting the least significant bits
/// of the address that the hooks contract is deployed to.
/// For example, a hooks contract deployed to address: 0x0000000000000000000000000000000000002400
/// has the lowest bits '10 0100 0000 0000' which would cause the 'before initialize' and 'after add liquidity' hooks to be used.
/// See the Hooks library for the full spec.
/// @dev Should only be callable by the v4 PoolManager.
interface IHooks {
/// @notice The hook called before the state of a pool is initialized
/// @param sender The initial msg.sender for the initialize call
/// @param key The key for the pool being initialized
/// @param sqrtPriceX96 The sqrt(price) of the pool as a Q64.96
/// @return bytes4 The function selector for the hook
function beforeInitialize(address sender, PoolKey calldata key, uint160 sqrtPriceX96) external returns (bytes4);
/// @notice The hook called after the state of a pool is initialized
/// @param sender The initial msg.sender for the initialize call
/// @param key The key for the pool being initialized
/// @param sqrtPriceX96 The sqrt(price) of the pool as a Q64.96
/// @param tick The current tick after the state of a pool is initialized
/// @return bytes4 The function selector for the hook
function afterInitialize(address sender, PoolKey calldata key, uint160 sqrtPriceX96, int24 tick)
external
returns (bytes4);
/// @notice The hook called before liquidity is added
/// @param sender The initial msg.sender for the add liquidity call
/// @param key The key for the pool
/// @param params The parameters for adding liquidity
/// @param hookData Arbitrary data handed into the PoolManager by the liquidity provider to be passed on to the hook
/// @return bytes4 The function selector for the hook
function beforeAddLiquidity(
address sender,
PoolKey calldata key,
IPoolManager.ModifyLiquidityParams calldata params,
bytes calldata hookData
) external returns (bytes4);
/// @notice The hook called after liquidity is added
/// @param sender The initial msg.sender for the add liquidity call
/// @param key The key for the pool
/// @param params The parameters for adding liquidity
/// @param delta The caller's balance delta after adding liquidity; the sum of principal delta, fees accrued, and hook delta
/// @param feesAccrued The fees accrued since the last time fees were collected from this position
/// @param hookData Arbitrary data handed into the PoolManager by the liquidity provider to be passed on to the hook
/// @return bytes4 The function selector for the hook
/// @return BalanceDelta The hook's delta in token0 and token1. Positive: the hook is owed/took currency, negative: the hook owes/sent currency
function afterAddLiquidity(
address sender,
PoolKey calldata key,
IPoolManager.ModifyLiquidityParams calldata params,
BalanceDelta delta,
BalanceDelta feesAccrued,
bytes calldata hookData
) external returns (bytes4, BalanceDelta);
/// @notice The hook called before liquidity is removed
/// @param sender The initial msg.sender for the remove liquidity call
/// @param key The key for the pool
/// @param params The parameters for removing liquidity
/// @param hookData Arbitrary data handed into the PoolManager by the liquidity provider to be be passed on to the hook
/// @return bytes4 The function selector for the hook
function beforeRemoveLiquidity(
address sender,
PoolKey calldata key,
IPoolManager.ModifyLiquidityParams calldata params,
bytes calldata hookData
) external returns (bytes4);
/// @notice The hook called after liquidity is removed
/// @param sender The initial msg.sender for the remove liquidity call
/// @param key The key for the pool
/// @param params The parameters for removing liquidity
/// @param delta The caller's balance delta after removing liquidity; the sum of principal delta, fees accrued, and hook delta
/// @param feesAccrued The fees accrued since the last time fees were collected from this position
/// @param hookData Arbitrary data handed into the PoolManager by the liquidity provider to be be passed on to the hook
/// @return bytes4 The function selector for the hook
/// @return BalanceDelta The hook's delta in token0 and token1. Positive: the hook is owed/took currency, negative: the hook owes/sent currency
function afterRemoveLiquidity(
address sender,
PoolKey calldata key,
IPoolManager.ModifyLiquidityParams calldata params,
BalanceDelta delta,
BalanceDelta feesAccrued,
bytes calldata hookData
) external returns (bytes4, BalanceDelta);
/// @notice The hook called before a swap
/// @param sender The initial msg.sender for the swap call
/// @param key The key for the pool
/// @param params The parameters for the swap
/// @param hookData Arbitrary data handed into the PoolManager by the swapper to be be passed on to the hook
/// @return bytes4 The function selector for the hook
/// @return BeforeSwapDelta The hook's delta in specified and unspecified currencies. Positive: the hook is owed/took currency, negative: the hook owes/sent currency
/// @return uint24 Optionally override the lp fee, only used if three conditions are met: 1. the Pool has a dynamic fee, 2. the value's 2nd highest bit is set (23rd bit, 0x400000), and 3. the value is less than or equal to the maximum fee (1 million)
function beforeSwap(
address sender,
PoolKey calldata key,
IPoolManager.SwapParams calldata params,
bytes calldata hookData
) external returns (bytes4, BeforeSwapDelta, uint24);
/// @notice The hook called after a swap
/// @param sender The initial msg.sender for the swap call
/// @param key The key for the pool
/// @param params The parameters for the swap
/// @param delta The amount owed to the caller (positive) or owed to the pool (negative)
/// @param hookData Arbitrary data handed into the PoolManager by the swapper to be be passed on to the hook
/// @return bytes4 The function selector for the hook
/// @return int128 The hook's delta in unspecified currency. Positive: the hook is owed/took currency, negative: the hook owes/sent currency
function afterSwap(
address sender,
PoolKey calldata key,
IPoolManager.SwapParams calldata params,
BalanceDelta delta,
bytes calldata hookData
) external returns (bytes4, int128);
/// @notice The hook called before donate
/// @param sender The initial msg.sender for the donate call
/// @param key The key for the pool
/// @param amount0 The amount of token0 being donated
/// @param amount1 The amount of token1 being donated
/// @param hookData Arbitrary data handed into the PoolManager by the donor to be be passed on to the hook
/// @return bytes4 The function selector for the hook
function beforeDonate(
address sender,
PoolKey calldata key,
uint256 amount0,
uint256 amount1,
bytes calldata hookData
) external returns (bytes4);
/// @notice The hook called after donate
/// @param sender The initial msg.sender for the donate call
/// @param key The key for the pool
/// @param amount0 The amount of token0 being donated
/// @param amount1 The amount of token1 being donated
/// @param hookData Arbitrary data handed into the PoolManager by the donor to be be passed on to the hook
/// @return bytes4 The function selector for the hook
function afterDonate(
address sender,
PoolKey calldata key,
uint256 amount0,
uint256 amount1,
bytes calldata hookData
) external returns (bytes4);
}
"
},
"@uniswap/v4-core/src/types/Currency.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {IERC20Minimal} from "../interfaces/external/IERC20Minimal.sol";
import {CustomRevert} from "../libraries/CustomRevert.sol";
type Currency is address;
using {greaterThan as >, lessThan as <, greaterThanOrEqualTo as >=, equals as ==} for Currency global;
using CurrencyLibrary for Currency global;
function equals(Currency currency, Currency other) pure returns (bool) {
return Currency.unwrap(currency) == Currency.unwrap(other);
}
function greaterThan(Currency currency, Currency other) pure returns (bool) {
return Currency.unwrap(currency) > Currency.unwrap(other);
}
function lessThan(Currency currency, Currency other) pure returns (bool) {
return Currency.unwrap(currency) < Currency.unwrap(other);
}
function greaterThanOrEqualTo(Currency currency, Currency other) pure returns (bool) {
return Currency.unwrap(currency) >= Currency.unwrap(other);
}
/// @title CurrencyLibrary
/// @dev This library allows for transferring and holding native tokens and ERC20 tokens
library CurrencyLibrary {
/// @notice Additional context for ERC-7751 wrapped error when a native transfer fails
error NativeTransferFailed();
/// @notice Additional context for ERC-7751 wrapped error when an ERC20 transfer fails
error ERC20TransferFailed();
/// @notice A constant to represent the native currency
Currency public constant ADDRESS_ZERO = Currency.wrap(address(0));
function transfer(Currency currency, address to, uint256 amount) internal {
// altered from https://github.com/transmissions11/solmate/blob/44a9963d4c78111f77caa0e65d677b8b46d6f2e6/src/utils/SafeTransferLib.sol
// modified custom error selectors
bool success;
if (currency.isAddressZero()) {
assembly ("memory-safe") {
// Transfer the ETH and revert if it fails.
success := call(gas(), to, amount, 0, 0, 0, 0)
}
// revert with NativeTransferFailed, containing the bubbled up error as an argument
if (!success) {
CustomRevert.bubbleUpAndRevertWith(to, bytes4(0), NativeTransferFailed.selector);
}
} else {
assembly ("memory-safe") {
// Get a pointer to some free memory.
let fmp := mload(0x40)
// Write the abi-encoded calldata into memory, beginning with the function selector.
mstore(fmp, 0xa9059cbb00000000000000000000000000000000000000000000000000000000)
mstore(add(fmp, 4), and(to, 0xffffffffffffffffffffffffffffffffffffffff)) // Append and mask the "to" argument.
mstore(add(fmp, 36), amount) // Append the "amount" argument. Masking not required as it's a full 32 byte type.
success :=
and(
// Set success to whether the call reverted, if not we check it either
// returned exactly 1 (can't just be non-zero data), or had no return data.
or(and(eq(mload(0), 1), gt(returndatasize(), 31)), iszero(returndatasize())),
// We use 68 because the length of our calldata totals up like so: 4 + 32 * 2.
// We use 0 and 32 to copy up to 32 bytes of return data into the scratch space.
// Counterintuitively, this call must be positioned second to the or() call in the
// surrounding and() call or else returndatasize() will be zero during the computation.
call(gas(), currency, 0, fmp, 68, 0, 32)
)
// Now clean the memory we used
mstore(fmp, 0) // 4 byte `selector` and 28 bytes of `to` were stored here
mstore(add(fmp, 0x20), 0) // 4 bytes of `to` and 28 bytes of `amount` were stored here
mstore(add(fmp, 0x40), 0) // 4 bytes of `amount` were stored here
}
// revert with ERC20TransferFailed, containing the bubbled up error as an argument
if (!success) {
CustomRevert.bubbleUpAndRevertWith(
Currency.unwrap(currency), IERC20Minimal.transfer.selector, ERC20TransferFailed.selector
);
}
}
}
function balanceOfSelf(Currency currency) internal view returns (uint256) {
if (currency.isAddressZero()) {
return address(this).balance;
} else {
return IERC20Minimal(Currency.unwrap(currency)).balanceOf(address(this));
}
}
function balanceOf(Currency currency, address owner) internal view returns (uint256) {
if (currency.isAddressZero()) {
return owner.balance;
} else {
return IERC20Minimal(Currency.unwrap(currency)).balanceOf(owner);
}
}
function isAddressZero(Currency currency) internal pure returns (bool) {
return Currency.unwrap(currency) == Currency.unwrap(ADDRESS_ZERO);
}
function toId(Currency currency) internal pure returns (uint256) {
return uint160(Currency.unwrap(currency));
}
// If the upper 12 bytes are non-zero, they will be zero-ed out
// Therefore, fromId() and toId() are not inverses of each other
function fromId(uint256 id) internal pure returns (Currency) {
return Currency.wrap(address(uint160(id)));
}
}
"
},
"@uniswap/v4-core/src/types/PoolKey.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {Currency} from "./Currency.sol";
import {IHooks} from "../interfaces/IHooks.sol";
import {PoolIdLibrary} from "./PoolId.sol";
using PoolIdLibrary for PoolKey global;
/// @notice Returns the key for identifying a pool
struct PoolKey {
/// @notice The lower currency of the pool, sorted numerically
Currency currency0;
/// @notice The higher currency of the pool, sorted numerically
Currency currency1;
/// @notice The pool LP fee, capped at 1_000_000. If the highest bit is 1, the pool has a dynamic fee and must be exactly equal to 0x800000
uint24 fee;
/// @notice Ticks that involve positions must be a multiple of tick spacing
int24 tickSpacing;
/// @notice The hooks of the pool
IHooks hooks;
}
"
},
"@uniswap/v4-core/src/interfaces/IPoolManager.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
import {Currency} from "../types/Currency.sol";
import {PoolKey} from "../types/PoolKey.sol";
import {IHooks} from "./IHooks.sol";
import {IERC6909Claims} from "./external/IERC6909Claims.sol";
import {IProtocolFees} from "./IProtocolFees.sol";
import {BalanceDelta} from "../types/BalanceDelta.sol";
import {PoolId} from "../types/PoolId.sol";
import {IExtsload} from "./IExtsload.sol";
import {IExttload} from "./IExttload.sol";
/// @notice Interface for the PoolManager
interface IPoolManager is IProtocolFees, IERC6909Claims, IExtsload, IExttload {
/// @notice Thrown when a currency is not netted out after the contract is unlocked
error CurrencyNotSettled();
/// @notice Thrown when trying to interact with a non-initialized pool
error PoolNotInitialized();
/// @notice Thrown when unlock is called, but the contract is already unlocked
error AlreadyUnlocked();
/// @notice Thrown when a function is called that requires the contract to be unlocked, but it is not
error ManagerLocked();
/// @notice Pools are limited to type(int16).max tickSpacing in #initialize, to prevent overflow
error TickSpacingTooLarge(int24 tickSpacing);
/// @notice Pools must have a positive non-zero tickSpacing passed to #initialize
error TickSpacingTooSmall(int24 tickSpacing);
/// @notice PoolKey must have currencies where address(currency0) < address(currency1)
error CurrenciesOutOfOrderOrEqual(address currency0, address currency1);
/// @notice Thrown when a call to updateDynamicLPFee is made by an address that is not the hook,
/// or on a pool that does not have a dynamic swap fee.
error UnauthorizedDynamicLPFeeUpdate();
/// @notice Thrown when trying to swap amount of 0
error SwapAmountCannotBeZero();
///@notice Thrown when native currency is passed to a non native settlement
error NonzeroNativeValue();
/// @notice Thrown when `clear` is called with an amount that is not exactly equal to the open currency delta.
error MustClearExactPositiveDelta();
/// @notice Emitted when a new pool is initialized
/// @param id The abi encoded hash of the pool key struct for the new pool
/// @param currency0 The first currency of the pool by address sort order
/// @param currency1 The second currency 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 hooks The hooks contract address for the pool, or address(0) if none
/// @param sqrtPriceX96 The price of the pool on initialization
/// @param tick The initial tick of the pool corresponding to the initialized price
event Initialize(
PoolId indexed id,
Currency indexed currency0,
Currency indexed currency1,
uint24 fee,
int24 tickSpacing,
IHooks hooks,
uint160 sqrtPriceX96,
int24 tick
);
/// @notice Emitted when a liquidity position is modified
/// @param id The abi encoded hash of the pool key struct for the pool that was modified
/// @param sender The address that modified the pool
/// @param tickLower The lower tick of the position
/// @param tickUpper The upper tick of the position
/// @param liquidityDelta The amount of liquidity that was added or removed
/// @param salt The extra data to make positions unique
event ModifyLiquidity(
PoolId indexed id, address indexed sender, int24 tickLower, int24 tickUpper, int256 liquidityDelta, bytes32 salt
);
/// @notice Emitted for swaps between currency0 and currency1
/// @param id The abi encoded hash of the pool key struct for the pool that was modified
/// @param sender The address that initiated the swap call, and that received the callback
/// @param amount0 The delta of the currency0 balance of the pool
/// @param amount1 The delta of the currency1 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 the price of the pool after the swap
/// @param fee The swap fee in hundredths of a bip
event Swap(
PoolId indexed id,
address indexed sender,
int128 amount0,
int128 amount1,
uint160 sqrtPriceX96,
uint128 liquidity,
int24 tick,
uint24 fee
);
/// @notice Emitted for donations
/// @param id The abi encoded hash of the pool key struct for the pool that was donated to
/// @param sender The address that initiated the donate call
/// @param amount0 The amount donated in currency0
/// @param amount1 The amount donated in currency1
event Donate(PoolId indexed id, address indexed sender, uint256 amount0, uint256 amount1);
/// @notice All interactions on the contract that account deltas require unlocking. A caller that calls `unlock` must implement
/// `IUnlockCallback(msg.sender).unlockCallback(data)`, where they interact with the remaining functions on this contract.
/// @dev The only functions callable without an unlocking are `initialize` and `updateDynamicLPFee`
/// @param data Any data to pass to the callback, via `IUnlockCallback(msg.sender).unlockCallback(data)`
/// @return The data returned by the call to `IUnlockCallback(msg.sender).unlockCallback(data)`
function unlock(bytes calldata data) external returns (bytes memory);
/// @notice Initialize the state for a given pool ID
/// @dev A swap fee totaling MAX_SWAP_FEE (100%) makes exact output swaps impossible since the input is entirely consumed by the fee
/// @param key The pool key for the pool to initialize
/// @param sqrtPriceX96 The initial square root price
/// @return tick The initial tick of the pool
function initialize(PoolKey memory key, uint160 sqrtPriceX96) external returns (int24 tick);
struct ModifyLiquidityParams {
// the lower and upper tick of the position
int24 tickLower;
int24 tickUpper;
// how to modify the liquidity
int256 liquidityDelta;
// a value to set if you want unique liquidity positions at the same range
bytes32 salt;
}
/// @notice Modify the liquidity for the given pool
/// @dev Poke by calling with a zero liquidityDelta
/// @param key The pool to modify liquidity in
/// @param params The parameters for modifying the liquidity
/// @param hookData The data to pass through to the add/removeLiquidity hooks
/// @return callerDelta The balance delta of the caller of modifyLiquidity. This is the total of both principal, fee deltas, and hook deltas if applicable
/// @return feesAccrued The balance delta of the fees generated in the liquidity range. Returned for informational purposes
/// @dev Note that feesAccrued can be artificially inflated by a malicious actor and integrators should be careful using the value
/// For pools with a single liquidity position, actors can donate to themselves to inflate feeGrowthGlobal (and consequently feesAccrued)
/// atomically donating and collecting fees in the same unlockCallback may make the inflated value more extreme
function modifyLiquidity(PoolKey memory key, ModifyLiquidityParams memory params, bytes calldata hookData)
external
returns (BalanceDelta callerDelta, BalanceDelta feesAccrued);
struct SwapParams {
/// Whether to swap token0 for token1 or vice versa
bool zeroForOne;
/// The desired input amount if negative (exactIn), or the desired output amount if positive (exactOut)
int256 amountSpecified;
/// The sqrt price at which, if reached, the swap will stop executing
uint160 sqrtPriceLimitX96;
}
/// @notice Swap against the given pool
/// @param key The pool to swap in
/// @param params The parameters for swapping
/// @param hookData The data to pass through to the swap hooks
/// @return swapDelta The balance delta of the address swapping
/// @dev Swapping on low liquidity pools may cause unexpected swap amounts when liquidity available is less than amountSpecified.
/// Additionally note that if interacting with hooks that have the BEFORE_SWAP_RETURNS_DELTA_FLAG or AFTER_SWAP_RETURNS_DELTA_FLAG
/// the hook may alter the swap input/output. Integrators should perform checks on the returned swapDelta.
function swap(PoolKey memory key, SwapParams memory params, bytes calldata hookData)
external
returns (BalanceDelta swapDelta);
/// @notice Donate the given currency amounts to the in-range liquidity providers of a pool
/// @dev Calls to donate can be frontrun adding just-in-time liquidity, with the aim of receiving a portion donated funds.
/// Donors should keep this in mind when designing donation mechanisms.
/// @dev This function donates to in-range LPs at slot0.tick. In certain edge-cases of the swap algorithm, the `sqrtPrice` of
/// a pool can be at the lower boundary of tick `n`, but the `slot0.tick` of the pool is already `n - 1`. In this case a call to
/// `donate` would donate to tick `n - 1` (slot0.tick) not tick `n` (getTickAtSqrtPrice(slot0.sqrtPriceX96)).
/// Read the comments in `Pool.swap()` for more information about this.
/// @param key The key of the pool to donate to
/// @param amount0 The amount of currency0 to donate
/// @param amount1 The amount of currency1 to donate
/// @param hookData The data to pass through to the donate hooks
/// @return BalanceDelta The delta of the caller after the donate
function donate(PoolKey memory key, uint256 amount0, uint256 amount1, bytes calldata hookData)
external
returns (BalanceDelta);
/// @notice Writes the current ERC20 balance of the specified currency to transient storage
/// This is used to checkpoint balances for the manager and derive deltas for the caller.
/// @dev This MUST be called before any ERC20 tokens are sent into the contract, but can be skipped
/// for native tokens because the amount to settle is determined by the sent value.
/// However, if an ERC20 token has been synced and not settled, and the caller instead wants to settle
/// native funds, this function can be called with the native currency to then be able to settle the native currency
function sync(Currency currency) external;
/// @notice Called by the user to net out some value owed to the user
/// @dev Will revert if the requested amount is not available, consider using `mint` instead
/// @dev Can also be used as a mechanism for free flash loans
/// @param currency The currency to withdraw from the pool manager
/// @param to The address to withdraw to
/// @param amount The amount of currency to withdraw
function take(Currency currency, address to, uint256 amount) external;
/// @notice Called by the user to pay what is owed
/// @return paid The amount of currency settled
function settle() external payable returns (uint256 paid);
/// @notice Called by the user to pay on behalf of another address
/// @param recipient The address to credit for the payment
/// @return paid The amount of currency settled
function settleFor(address recipient) external payable returns (uint256 paid);
/// @notice WARNING - Any currency that is cleared, will be non-retrievable, and locked in the contract permanently.
/// A call to clear will zero out a positive balance WITHOUT a corresponding transfer.
/// @dev This could be used to clear a balance that is considered dust.
/// Additionally, the amount must be the exact positive balance. This is to enforce that the caller is aware of the amount being cleared.
function clear(Currency currency, uint256 amount) external;
/// @notice Called by the user to move value into ERC6909 balance
/// @param to The address to mint the tokens to
/// @param id The currency address to mint to ERC6909s, as a uint256
/// @param amount The amount of currency to mint
/// @dev The id is converted to a uint160 to correspond to a currency address
/// If the upper 12 bytes are not 0, they will be 0-ed out
function mint(address to, uint256 id, uint256 amount) external;
/// @notice Called by the user to move value from ERC6909 balance
/// @param from The address to burn the tokens from
/// @param id The currency address to burn from ERC6909s, as a uint256
/// @param amount The amount of currency to burn
/// @dev The id is converted to a uint160 to correspond to a currency address
/// If the upper 12 bytes are not 0, they will be 0-ed out
function burn(address from, uint256 id, uint256 amount) external;
/// @notice Updates the pools lp fees for the a pool that has enabled dynamic lp fees.
/// @dev A swap fee totaling MAX_SWAP_FEE (100%) makes exact output swaps impossible since the input is entirely consumed by the fee
/// @param key The key of the pool to update dynamic LP fees for
/// @param newDynamicLPFee The new dynamic pool LP fee
function updateDynamicLPFee(PoolKey memory key, uint24 newDynamicLPFee) external;
}
"
},
"@uniswap/v4-core/src/types/PoolId.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {PoolKey} from "./PoolKey.sol";
type PoolId is bytes32;
/// @notice Library for computing the ID of a pool
library PoolIdLibrary {
/// @notice Returns value equal to keccak256(abi.encode(poolKey))
function toId(PoolKey memory poolKey) internal pure returns (PoolId poolId) {
assembly ("memory-safe") {
// 0xa0 represents the total size of the poolKey struct (5 slots of 32 bytes)
poolId := keccak256(poolKey, 0xa0)
}
}
}
"
},
"@uniswap/v4-core/src/libraries/CustomRevert.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title Library for reverting with custom errors efficiently
/// @notice Contains functions for reverting with custom errors with different argument types efficiently
/// @dev To use this library, declare `using CustomRevert for bytes4;` and replace `revert CustomError()` with
/// `CustomError.selector.revertWith()`
/// @dev The functions may tamper with the free memory pointer but it is fine since the call context is exited immediately
library CustomRevert {
/// @dev ERC-7751 error for wrapping bubbled up reverts
error WrappedError(address target, bytes4 selector, bytes reason, bytes details);
/// @dev Reverts with the selector of a custom error in the scratch space
function revertWith(bytes4 selector) internal pure {
assembly ("memory-safe") {
mstore(0, selector)
revert(0, 0x04)
}
}
/// @dev Reverts with a custom error with an address argument in the scratch space
function revertWith(bytes4 selector, address addr) internal pure {
assembly ("memory-safe") {
mstore(0, selector)
mstore(0x04, and(addr, 0xffffffffffffffffffffffffffffffffffffffff))
revert(0, 0x24)
}
}
/// @dev Reverts with a custom error with an int24 argument in the scratch space
function revertWith(bytes4 selector, int24 value) internal pure {
assembly ("memory-safe") {
mstore(0, selector)
mstore(0x04, signextend(2, value))
revert(0, 0x24)
}
}
/// @dev Reverts with a custom error with a uint160 argument in the scratch space
function revertWith(bytes4 selector, uint160 value) internal pure {
assembly ("memory-safe") {
mstore(0, selector)
mstore(0x04, and(value, 0xffffffffffffffffffffffffffffffffffffffff))
revert(0, 0x24)
}
}
/// @dev Reverts with a custom error with two int24 arguments
function revertWith(bytes4 selector, int24 value1, int24 value2) internal pure {
assembly ("memory-safe") {
let fmp := mload(0x40)
mstore(fmp, selector)
mstore(add(fmp, 0x04), signextend(2, value1))
mstore(add(fmp, 0x24), signextend(2, value2))
revert(fmp, 0x44)
}
}
/// @dev Reverts with a custom error with two uint160 arguments
function revertWith(bytes4 selector, uint160 value1, uint160 value2) internal pure {
assembly ("memory-safe") {
let fmp := mload(0x40)
mstore(fmp, selector)
mstore(add(fmp, 0x04), and(value1, 0xffffffffffffffffffffffffffffffffffffffff))
mstore(add(fmp, 0x24), and(value2, 0xffffffffffffffffffffffffffffffffffffffff))
revert(fmp, 0x44)
}
}
/// @dev Reverts with a custom error with two address arguments
function revertWith(bytes4 selector, address value1, address value2) internal pure {
assembly ("memory-safe") {
let fmp := mload(0x40)
mstore(fmp, selector)
mstore(add(fmp, 0x04), and(value1, 0xffffffffffffffffffffffffffffffffffffffff))
mstore(add(fmp, 0x24), and(value2, 0xffffffffffffffffffffffffffffffffffffffff))
revert(fmp, 0x44)
}
}
/// @notice bubble up the revert message returned by a call and revert with a wrapped ERC-7751 error
/// @dev this method can be vulnerable to revert data bombs
function bubbleUpAndRevertWith(
address revertingContract,
bytes4 revertingFunctionSelector,
bytes4 additionalContext
) internal pure {
bytes4 wrappedErrorSelector = WrappedError.selector;
assembly ("memory-safe") {
// Ensure the size of the revert data is a multiple of 32 bytes
let encodedDataSize := mul(div(add(returndatasize(), 31), 32), 32)
let fmp := mload(0x40)
// Encode wrapped error selector, address, function selector, offset, additional context, size, revert reason
mstore(fmp, wrappedErrorSelector)
mstore(add(fmp, 0x04), and(revertingContract, 0xffffffffffffffffffffffffffffffffffffffff))
mstore(
add(fmp, 0x24),
and(revertingFunctionSelector, 0xffffffff00000000000000000000000000000000000000000000000000000000)
)
// offset revert reason
mstore(add(fmp, 0x44), 0x80)
// offset additional context
mstore(add(fmp, 0x64), add(0xa0, encodedDataSize))
// size revert reason
mstore(add(fmp, 0x84), returndatasize())
// revert reason
returndatacopy(add(fmp, 0xa4), 0, returndatasize())
// size additional context
mstore(add(fmp, add(0xa4, encodedDataSize)), 0x04)
// additional context
mstore(
add(fmp, add(0xc4, encodedDataSize)),
and(additionalContext, 0xffffffff00000000000000000000000000000000000000000000000000000000)
)
revert(fmp, add(0xe4, encodedDataSize))
}
}
}
"
},
"@uniswap/v4-core/src/interfaces/external/IERC20Minimal.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @title Minimal ERC20 interface for Uniswap
/// @notice Contains a subset of the full ERC20 interface that is used in Uniswap V3
interface IERC20Minimal {
/// @notice Returns an account's balance in the token
/// @param account The account for which to look up the number of tokens it has, i.e. its balance
/// @return The number of tokens held by the account
function balanceOf(address account) external view returns (uint256);
/// @notice Transfers the amount of token from the `msg.sender` to the recipient
/// @param recipient The account that will receive the amount transferred
/// @param amount The number of tokens to send from the sender to the recipient
/// @return Returns true for a successful transfer, false for an unsuccessful transfer
function transfer(address recipient, uint256 amount) external returns (bool);
/// @notice Returns the current allowance given to a spender by an owner
/// @param owner The account of the token owner
/// @param spender The account of the token spender
/// @return The current allowance granted by `owner` to `spender`
function allowance(address owner, address spender) external view returns (uint256);
/// @notice Sets the allowance of a spender from the `msg.sender` to the value `amount`
/// @param spender The account which will be allowed to spend a given amount of the owners tokens
/// @param amount The amount of tokens allowed to be used by `spender`
/// @return Returns true for a successful approval, false for unsuccessful
function approve(address spender, uint256 amount) external returns (bool);
/// @notice Transfers `amount` tokens from `sender` to `recipient` up to the allowance given to the `msg.sender`
/// @param sender The account from which the transfer will be initiated
/// @param recipient The recipient of the transfer
/// @param amount The amount of the transfer
/// @return Returns true for a successful transfer, false for unsuccessful
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
/// @notice Event emitted when tokens are transferred from one address to another, either via `#transfer` or `#transferFrom`.
/// @param from The account from which the tokens were sent, i.e. the balance decreased
/// @param to The account to which the tokens were sent, i.e. the balance increased
/// @param value The amount of tokens that were transferred
event Transfer(address indexed from, address indexed to, uint256 value);
/// @notice Event emitted when the approval amount for the spender of a given owner's tokens changes.
/// @param owner The account that approved spending of its tokens
/// @param spender The account for which the spending allowance was modified
/// @param value The new allowance from the owner to the spender
event Approval(address indexed owner, address indexed spender, uint256 value);
}
"
},
"@uniswap/v4-core/src/libraries/SafeCast.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import {CustomRevert} from "./CustomRevert.sol";
/// @title Safe casting methods
/// @notice Contains methods for safely casting between types
library SafeCast {
using CustomRevert for bytes4;
error SafeCastOverflow();
/// @notice Cast a uint256 to a uint160, revert on overflow
/// @param x The uint256 to be downcasted
/// @return y The downcasted integer, now type uint160
function toUint160(uint256 x) internal pure returns (uint160 y) {
y = uint160(x);
if (y != x) SafeCastOverflow.selector.revertWith();
}
/// @notice Cast a uint256 to a uint128, revert on overflow
/// @param x The uint256 to be downcasted
/// @return y The downcasted integer, now type uint128
function toUint128(uint256 x) internal pure returns (uint128 y) {
y = uint128(x);
if (x != y) SafeCastOverflow.selector.revertWith();
}
/// @notice Cast a int128 to a uint128, revert on overflow or underflow
/// @param x The int128 to be casted
/// @return y The casted integer, now type uint128
function toUint128(int128 x) internal pure returns (uint128 y) {
if (x < 0) SafeCastOverflow.selector.revertWith();
y = uint128(x);
}
/// @notice Cast a int256 to a int128, revert on overflow or underflow
/// @param x The int256 to be downcasted
/// @return y The downcasted integer, now type int128
function toInt128(int256 x) internal pure returns (int128 y) {
y = int128(x);
if (y != x) SafeCastOverflow.selector.revertWith();
}
/// @notice Cast a uint256 to a int256, revert on overflow
/// @param x The uint256 to be casted
/// @return y The casted integer, now type int256
function toInt256(uint256 x) internal pure returns (int256 y) {
y = int256(x);
if (y < 0) SafeCastOverflow.selector.revertWith();
}
/// @notice Cast a uint256 to a int128, revert on overflow
/// @param x The uint256 to be downcasted
/// @return The downcasted integer, now type int128
function toInt128(uint256 x) internal pure returns (int128) {
if (x >= 1 << 127) SafeCastOverflow.selector.revertWith();
return int128(int256(x));
}
}
"
},
"@uniswap/v4-core/src/interfaces/IExttload.sol": {
"content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
/// @notice Interface for functions to access any transient storage slot in a contract
interface IExttload {
/// @notice Called by external contracts to access transient storage of the contract
/// @param slot Key of slot to tload
/// @return value The value of the slot as bytes32
function exttload(bytes32 slot) external view returns (bytes32 value);
/// @notice Called by external contracts to access sparse transient pool state
/// @param slots List of slots to tload
/// @return values List of loaded values
function exttload(bSubmitted on: 2025-10-28 12:55:29
Comments
Log in to comment.
No comments yet.