Merge pull request #9 from pancakeswap/refactor/fit-periphery

Refactor/fit periphery
pancakeswap · Aug 28, 2024 · 75f5bbd · 75f5bbd
2 parents ddf50fb + d0ca89d
commit 75f5bbd
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Showing 31 changed files with 834 additions and 452 deletions.
diff --git a/.gitmodules b/.gitmodules
@@ -1,9 +1,9 @@
 [submodule "lib/forge-std"]
 	path = lib/forge-std
 	url = https://github.com/foundry-rs/forge-std
-[submodule "lib/pancake-v4-core"]
-	path = lib/pancake-v4-core
-	url = https://github.com/pancakeswap/pancake-v4-core
-[submodule "lib/pancake-v4-periphery"]
-	path = lib/pancake-v4-periphery
-	url = https://github.com/pancakeswap/pancake-v4-periphery
+[submodule "lib/forge-gas-snapshot"]
+	path = lib/forge-gas-snapshot
+	url = https://github.com/marktoda/forge-gas-snapshot
+[submodule "lib/pancake-v4-universal-router"]
+	path = lib/pancake-v4-universal-router
+	url = https://github.com/pancakeswap/pancake-v4-universal-router
diff --git a/foundry.toml b/foundry.toml
@@ -11,12 +11,7 @@ optimizer_runs = 1000
 via_ir = true
 evm_version = 'cancun'
 ffi = true
-fs_permissions = [{ access = "read-write", path = ".forge-snapshots/"}]
-remappings = [
-  "@pancakeswap/v4-core/=lib/pancake-v4-core/",
-  "@pancakeswap/v4-periphery/=lib/pancake-v4-periphery/",
-  "@openzeppelin/=lib/pancake-v4-periphery/lib/openzeppelin-contracts/"
-]
+fs_permissions = [{ access = "read-write", path = ".forge-snapshots/" }]
 
 [profile.default.fuzz]
 runs = 1000

diff --git a/lib/forge-gas-snapshot b/lib/forge-gas-snapshot
diff --git a/lib/forge-std b/lib/forge-std
diff --git a/lib/pancake-v4-core b/lib/pancake-v4-core
diff --git a/lib/pancake-v4-periphery b/lib/pancake-v4-periphery
diff --git a/lib/pancake-v4-universal-router b/lib/pancake-v4-universal-router
diff --git a/remappings.txt b/remappings.txt
@@ -1,3 +1,8 @@
-@pancakeswap/v4-core/=lib/pancake-v4-core/
-@pancakeswap/v4-periphery/=lib/pancake-v4-periphery/
-@openzeppelin/=lib/pancake-v4-periphery/lib/openzeppelin-contracts/
+forge-std/=lib/forge-std/src/
+ds-test/=lib/forge-std/lib/ds-test/src/
+openzeppelin-contracts/=lib/pancake-v4-universal-router/lib/pancake-v4-periphery/lib/pancake-v4-core/lib/openzeppelin-contracts/
+solmate/=lib/pancake-v4-universal-router/lib/pancake-v4-periphery/lib/pancake-v4-core/lib/solmate/
+pancake-v4-core/=lib/pancake-v4-universal-router/lib/pancake-v4-periphery/lib/pancake-v4-core/
+pancake-v4-periphery/=lib/pancake-v4-universal-router/lib/pancake-v4-periphery/
+pancake-v4-universal-router/=lib/pancake-v4-universal-router/
+permit2/=lib/pancake-v4-universal-router/lib/pancake-v4-periphery/lib/permit2/
diff --git a/src/pool-bin/BinBaseHook.sol b/src/pool-bin/BinBaseHook.sol
@@ -16,15 +16,15 @@ import {
     HOOKS_AFTER_SWAP_RETURNS_DELTA_OFFSET,
     HOOKS_AFTER_MINT_RETURNS_DELTA_OFFSET,
     HOOKS_AFTER_BURN_RETURNS_DELTA_OFFSET
-} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinHooks.sol";
-import {PoolKey} from "@pancakeswap/v4-core/src/types/PoolKey.sol";
-import {BalanceDelta} from "@pancakeswap/v4-core/src/types/BalanceDelta.sol";
-import {BeforeSwapDelta} from "@pancakeswap/v4-core/src/types/BeforeSwapDelta.sol";
-import {IHooks} from "@pancakeswap/v4-core/src/interfaces/IHooks.sol";
-import {IVault} from "@pancakeswap/v4-core/src/interfaces/IVault.sol";
-import {IBinHooks} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinHooks.sol";
-import {IBinPoolManager} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
-import {BinPoolManager} from "@pancakeswap/v4-core/src/pool-bin/BinPoolManager.sol";
+} from "pancake-v4-core/src/pool-bin/interfaces/IBinHooks.sol";
+import {PoolKey} from "pancake-v4-core/src/types/PoolKey.sol";
+import {BalanceDelta} from "pancake-v4-core/src/types/BalanceDelta.sol";
+import {BeforeSwapDelta} from "pancake-v4-core/src/types/BeforeSwapDelta.sol";
+import {IHooks} from "pancake-v4-core/src/interfaces/IHooks.sol";
+import {IVault} from "pancake-v4-core/src/interfaces/IVault.sol";
+import {IBinHooks} from "pancake-v4-core/src/pool-bin/interfaces/IBinHooks.sol";
+import {IBinPoolManager} from "pancake-v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
+import {BinPoolManager} from "pancake-v4-core/src/pool-bin/BinPoolManager.sol";
 
 /// @notice BaseHook abstract contract for Bin pool hooks to inherit
 abstract contract BinBaseHook is IBinHooks {
@@ -124,7 +124,7 @@ abstract contract BinBaseHook is IBinHooks {
     function beforeMint(address, PoolKey calldata, IBinPoolManager.MintParams calldata, bytes calldata)
         external
         virtual
-        returns (bytes4)
+        returns (bytes4, uint24)
     {
         revert HookNotImplemented();
     }

diff --git a/src/pool-bin/geomean-oracle/BinGeomeanOracle.sol b/src/pool-bin/geomean-oracle/BinGeomeanOracle.sol
@@ -2,7 +2,7 @@
 
 pragma solidity ^0.8.19;
 
-import {IBinPoolManager} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
+import {IBinPoolManager} from "pancake-v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
 import {
     HOOKS_BEFORE_INITIALIZE_OFFSET,
     HOOKS_AFTER_INITIALIZE_OFFSET,
@@ -14,13 +14,13 @@ import {
     HOOKS_AFTER_SWAP_OFFSET,
     HOOKS_BEFORE_DONATE_OFFSET,
     HOOKS_AFTER_DONATE_OFFSET
-} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinHooks.sol";
-import {IPoolManager} from "@pancakeswap/v4-core/src/interfaces/IPoolManager.sol";
-import {PoolId, PoolIdLibrary} from "@pancakeswap/v4-core/src/types/PoolId.sol";
-import {PoolKey} from "@pancakeswap/v4-core/src/types/PoolKey.sol";
-import {BalanceDelta, BalanceDeltaLibrary} from "@pancakeswap/v4-core/src/types/BalanceDelta.sol";
-import {BeforeSwapDelta, BeforeSwapDeltaLibrary} from "@pancakeswap/v4-core/src/types/BeforeSwapDelta.sol";
-import {Hooks} from "@pancakeswap/v4-core/src/libraries/Hooks.sol";
+} from "pancake-v4-core/src/pool-bin/interfaces/IBinHooks.sol";
+import {IPoolManager} from "pancake-v4-core/src/interfaces/IPoolManager.sol";
+import {PoolId, PoolIdLibrary} from "pancake-v4-core/src/types/PoolId.sol";
+import {PoolKey} from "pancake-v4-core/src/types/PoolKey.sol";
+import {BalanceDelta, BalanceDeltaLibrary} from "pancake-v4-core/src/types/BalanceDelta.sol";
+import {BeforeSwapDelta, BeforeSwapDeltaLibrary} from "pancake-v4-core/src/types/BeforeSwapDelta.sol";
+import {Hooks} from "pancake-v4-core/src/libraries/Hooks.sol";
 
 import {BinBaseHook} from "../BinBaseHook.sol";
 import {OracleHelper} from "./libraries/OracleHelper.sol";
@@ -92,9 +92,9 @@ contract BinGeomeanOracle is BinBaseHook {
         PoolKey calldata key,
         IBinPoolManager.MintParams calldata params,
         bytes calldata hookData
-    ) external override poolManagerOnly returns (bytes4) {
+    ) external override poolManagerOnly returns (bytes4, uint24) {
         _updatePool(key);
-        return this.beforeMint.selector;
+        return (this.beforeMint.selector, 0);
     }
 
     function beforeBurn(

diff --git a/src/pool-bin/limit-order/BinLimitOrder.sol b/src/pool-bin/limit-order/BinLimitOrder.sol
@@ -2,7 +2,7 @@
 
 pragma solidity ^0.8.19;
 
-import {IBinPoolManager} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
+import {IBinPoolManager} from "pancake-v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
 import {
     HOOKS_BEFORE_INITIALIZE_OFFSET,
     HOOKS_AFTER_INITIALIZE_OFFSET,
@@ -14,23 +14,23 @@ import {
     HOOKS_AFTER_SWAP_OFFSET,
     HOOKS_BEFORE_DONATE_OFFSET,
     HOOKS_AFTER_DONATE_OFFSET
-} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinHooks.sol";
-import {FullMath} from "@pancakeswap/v4-core/src/pool-cl/libraries/FullMath.sol";
-import {SafeCast} from "@pancakeswap/v4-core/src/libraries/SafeCast.sol";
-import {BinPoolParametersHelper} from "@pancakeswap/v4-core/src/pool-bin/libraries/BinPoolParametersHelper.sol";
-import {IPoolManager} from "@pancakeswap/v4-core/src/interfaces/IPoolManager.sol";
-import {IVault} from "@pancakeswap/v4-core/src/interfaces/IVault.sol";
-import {PoolId, PoolIdLibrary} from "@pancakeswap/v4-core/src/types/PoolId.sol";
-import {PoolKey} from "@pancakeswap/v4-core/src/types/PoolKey.sol";
-import {Currency, CurrencyLibrary} from "@pancakeswap/v4-core/src/types/Currency.sol";
-import {BalanceDelta} from "@pancakeswap/v4-core/src/types/BalanceDelta.sol";
-import {Hooks} from "@pancakeswap/v4-core/src/libraries/Hooks.sol";
-import {BinPoolManager} from "@pancakeswap/v4-core/src/pool-bin/BinPoolManager.sol";
-import {LiquidityConfigurations} from "@pancakeswap/v4-core/src/pool-bin/libraries/math/LiquidityConfigurations.sol";
-import {PackedUint128Math} from "@pancakeswap/v4-core/src/pool-bin/libraries/math/PackedUint128Math.sol";
-import {BinPool} from "@pancakeswap/v4-core/src/pool-bin/libraries/BinPool.sol";
-import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
-import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
+} from "pancake-v4-core/src/pool-bin/interfaces/IBinHooks.sol";
+import {FullMath} from "pancake-v4-core/src/pool-cl/libraries/FullMath.sol";
+import {SafeCast} from "pancake-v4-core/src/libraries/SafeCast.sol";
+import {BinPoolParametersHelper} from "pancake-v4-core/src/pool-bin/libraries/BinPoolParametersHelper.sol";
+import {IPoolManager} from "pancake-v4-core/src/interfaces/IPoolManager.sol";
+import {IVault} from "pancake-v4-core/src/interfaces/IVault.sol";
+import {PoolId, PoolIdLibrary} from "pancake-v4-core/src/types/PoolId.sol";
+import {PoolKey} from "pancake-v4-core/src/types/PoolKey.sol";
+import {Currency, CurrencyLibrary} from "pancake-v4-core/src/types/Currency.sol";
+import {BalanceDelta} from "pancake-v4-core/src/types/BalanceDelta.sol";
+import {Hooks} from "pancake-v4-core/src/libraries/Hooks.sol";
+import {BinPoolManager} from "pancake-v4-core/src/pool-bin/BinPoolManager.sol";
+import {LiquidityConfigurations} from "pancake-v4-core/src/pool-bin/libraries/math/LiquidityConfigurations.sol";
+import {PackedUint128Math} from "pancake-v4-core/src/pool-bin/libraries/math/PackedUint128Math.sol";
+import {BinPool} from "pancake-v4-core/src/pool-bin/libraries/BinPool.sol";
+import {IERC20} from "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
+import {SafeERC20} from "openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
 
 import {BinBaseHook} from "../BinBaseHook.sol";
 
@@ -315,13 +315,13 @@ contract BinLimitOrder is BinBaseHook {
             IERC20(Currency.unwrap(key.currency0)).safeTransferFrom(
                 owner, address(vault), uint256(uint128(-delta.amount0()))
             );
-            vault.settle(key.currency0);
+            vault.settle();
         } else {
             vault.sync(key.currency1);
             IERC20(Currency.unwrap(key.currency1)).safeTransferFrom(
                 owner, address(vault), uint256(uint128(-delta.amount1()))
             );
-            vault.settle(key.currency1);
+            vault.settle();
         }
     }
 

diff --git a/src/pool-bin/vecake-exclusive/BinVeCakeExclusiveHook.sol b/src/pool-bin/vecake-exclusive/BinVeCakeExclusiveHook.sol
@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: UNLICENSED
 pragma solidity ^0.8.24;
 
-import {PoolKey} from "@pancakeswap/v4-core/src/types/PoolKey.sol";
-import {PoolId, PoolIdLibrary} from "@pancakeswap/v4-core/src/types/PoolId.sol";
-import {BeforeSwapDelta, BeforeSwapDeltaLibrary} from "@pancakeswap/v4-core/src/types/BeforeSwapDelta.sol";
-import {IBinPoolManager} from "@pancakeswap/v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
+import {PoolKey} from "pancake-v4-core/src/types/PoolKey.sol";
+import {PoolId, PoolIdLibrary} from "pancake-v4-core/src/types/PoolId.sol";
+import {BeforeSwapDelta, BeforeSwapDeltaLibrary} from "pancake-v4-core/src/types/BeforeSwapDelta.sol";
+import {IBinPoolManager} from "pancake-v4-core/src/pool-bin/interfaces/IBinPoolManager.sol";
 
 import {BinBaseHook} from "../BinBaseHook.sol";
 

diff --git a/src/pool-cl/CLBaseHook.sol b/src/pool-cl/CLBaseHook.sol
@@ -16,15 +16,15 @@ import {
     HOOKS_AFTER_SWAP_RETURNS_DELTA_OFFSET,
     HOOKS_AFTER_ADD_LIQUIDIY_RETURNS_DELTA_OFFSET,
     HOOKS_AFTER_REMOVE_LIQUIDIY_RETURNS_DELTA_OFFSET
-} from "@pancakeswap/v4-core/src/pool-cl/interfaces/ICLHooks.sol";
-import {PoolKey} from "@pancakeswap/v4-core/src/types/PoolKey.sol";
-import {BalanceDelta} from "@pancakeswap/v4-core/src/types/BalanceDelta.sol";
-import {BeforeSwapDelta} from "@pancakeswap/v4-core/src/types/BeforeSwapDelta.sol";
-import {IHooks} from "@pancakeswap/v4-core/src/interfaces/IHooks.sol";
-import {IVault} from "@pancakeswap/v4-core/src/interfaces/IVault.sol";
-import {ICLHooks} from "@pancakeswap/v4-core/src/pool-cl/interfaces/ICLHooks.sol";
-import {ICLPoolManager} from "@pancakeswap/v4-core/src/pool-cl/interfaces/ICLPoolManager.sol";
-import {CLPoolManager} from "@pancakeswap/v4-core/src/pool-cl/CLPoolManager.sol";
+} from "pancake-v4-core/src/pool-cl/interfaces/ICLHooks.sol";
+import {PoolKey} from "pancake-v4-core/src/types/PoolKey.sol";
+import {BalanceDelta} from "pancake-v4-core/src/types/BalanceDelta.sol";
+import {BeforeSwapDelta} from "pancake-v4-core/src/types/BeforeSwapDelta.sol";
+import {IHooks} from "pancake-v4-core/src/interfaces/IHooks.sol";
+import {IVault} from "pancake-v4-core/src/interfaces/IVault.sol";
+import {ICLHooks} from "pancake-v4-core/src/pool-cl/interfaces/ICLHooks.sol";
+import {ICLPoolManager} from "pancake-v4-core/src/pool-cl/interfaces/ICLPoolManager.sol";
+import {CLPoolManager} from "pancake-v4-core/src/pool-cl/CLPoolManager.sol";
 
 /// @notice BaseHook abstract contract for CL pool hooks to inherit
 abstract contract CLBaseHook is ICLHooks {

diff --git a/src/pool-cl/full-range/CLFullRange.sol b/src/pool-cl/full-range/CLFullRange.sol
@@ -2,28 +2,28 @@
 
 pragma solidity ^0.8.19;
 
-import {ICLPoolManager} from "@pancakeswap/v4-core/src/pool-cl/interfaces/ICLPoolManager.sol";
-import {TickMath} from "@pancakeswap/v4-core/src/pool-cl/libraries/TickMath.sol";
-import {TickBitmap} from "@pancakeswap/v4-core/src/pool-cl/libraries/TickBitmap.sol";
-import {SqrtPriceMath} from "@pancakeswap/v4-core/src/pool-cl/libraries/SqrtPriceMath.sol";
-import {FixedPoint96} from "@pancakeswap/v4-core/src/pool-cl/libraries/FixedPoint96.sol";
-import {CLPoolParametersHelper} from "@pancakeswap/v4-core/src/pool-cl/libraries/CLPoolParametersHelper.sol";
-import {IPoolManager} from "@pancakeswap/v4-core/src/interfaces/IPoolManager.sol";
-import {IVault} from "@pancakeswap/v4-core/src/interfaces/IVault.sol";
-import {PoolId, PoolIdLibrary} from "@pancakeswap/v4-core/src/types/PoolId.sol";
-import {Currency, CurrencyLibrary} from "@pancakeswap/v4-core/src/types/Currency.sol";
-import {BalanceDelta} from "@pancakeswap/v4-core/src/types/BalanceDelta.sol";
-import {BeforeSwapDelta, BeforeSwapDeltaLibrary} from "@pancakeswap/v4-core/src/types/BeforeSwapDelta.sol";
-import {PoolKey} from "@pancakeswap/v4-core/src/types/PoolKey.sol";
-import {Hooks} from "@pancakeswap/v4-core/src/libraries/Hooks.sol";
-import {SafeCast} from "@pancakeswap/v4-core/src/libraries/SafeCast.sol";
-import {FullMath} from "@pancakeswap/v4-core/src/pool-cl/libraries/FullMath.sol";
-import {CLPoolManager} from "@pancakeswap/v4-core/src/pool-cl/CLPoolManager.sol";
-import {FixedPointMathLib} from "solmate/utils/FixedPointMathLib.sol";
-import {IERC20Metadata} from "@openzeppelin/contracts/interfaces/IERC20Metadata.sol";
-import {Strings} from "@openzeppelin/contracts/utils/Strings.sol";
-import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
-import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
+import {ICLPoolManager} from "pancake-v4-core/src/pool-cl/interfaces/ICLPoolManager.sol";
+import {TickMath} from "pancake-v4-core/src/pool-cl/libraries/TickMath.sol";
+import {TickBitmap} from "pancake-v4-core/src/pool-cl/libraries/TickBitmap.sol";
+import {SqrtPriceMath} from "pancake-v4-core/src/pool-cl/libraries/SqrtPriceMath.sol";
+import {FixedPoint96} from "pancake-v4-core/src/pool-cl/libraries/FixedPoint96.sol";
+import {CLPoolParametersHelper} from "pancake-v4-core/src/pool-cl/libraries/CLPoolParametersHelper.sol";
+import {IPoolManager} from "pancake-v4-core/src/interfaces/IPoolManager.sol";
+import {IVault} from "pancake-v4-core/src/interfaces/IVault.sol";
+import {PoolId, PoolIdLibrary} from "pancake-v4-core/src/types/PoolId.sol";
+import {Currency, CurrencyLibrary} from "pancake-v4-core/src/types/Currency.sol";
+import {BalanceDelta} from "pancake-v4-core/src/types/BalanceDelta.sol";
+import {BeforeSwapDelta, BeforeSwapDeltaLibrary} from "pancake-v4-core/src/types/BeforeSwapDelta.sol";
+import {PoolKey} from "pancake-v4-core/src/types/PoolKey.sol";
+import {Hooks} from "pancake-v4-core/src/libraries/Hooks.sol";
+import {SafeCast} from "pancake-v4-core/src/libraries/SafeCast.sol";
+import {FullMath} from "pancake-v4-core/src/pool-cl/libraries/FullMath.sol";
+import {CLPoolManager} from "pancake-v4-core/src/pool-cl/CLPoolManager.sol";
+import {FixedPointMathLib} from "solmate/src/utils/FixedPointMathLib.sol";
+import {IERC20Metadata} from "openzeppelin-contracts/contracts/interfaces/IERC20Metadata.sol";
+import {Strings} from "openzeppelin-contracts/contracts/utils/Strings.sol";
+import {IERC20} from "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
+import {SafeERC20} from "openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
 
 import {CLBaseHook} from "../CLBaseHook.sol";
 import {LiquidityAmounts} from "./libraries/LiquidityAmounts.sol";
@@ -331,15 +331,15 @@ contract CLFullRange is CLBaseHook {
 
     function _settleDelta(address sender, Currency currency, uint128 amount) internal {
         if (currency.isNative()) {
-            vault.settle{value: amount}(currency);
+            vault.settle{value: amount}();
         } else {
             vault.sync(currency);
             if (sender == address(this)) {
                 IERC20(Currency.unwrap(currency)).safeTransfer(address(vault), amount);
             } else {
                 IERC20(Currency.unwrap(currency)).safeTransferFrom(sender, address(vault), amount);
             }
-            vault.settle(currency);
+            vault.settle();
         }
     }
 

diff --git a/src/pool-cl/full-range/libraries/LiquidityAmounts.sol b/src/pool-cl/full-range/libraries/LiquidityAmounts.sol
@@ -1,8 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 pragma solidity ^0.8.19;
 
-import "@pancakeswap/v4-core/src/pool-cl/libraries/FullMath.sol";
-import "@pancakeswap/v4-core/src/pool-cl/libraries/FixedPoint96.sol";
+import "pancake-v4-core/src/pool-cl/libraries/FullMath.sol";
+import "pancake-v4-core/src/pool-cl/libraries/FixedPoint96.sol";
 
 /// @title Liquidity amount functions
 /// @notice Provides functions for computing liquidity amounts from token amounts and prices

diff --git a/src/pool-cl/full-range/libraries/PancakeV4ERC20.sol b/src/pool-cl/full-range/libraries/PancakeV4ERC20.sol
@@ -1,7 +1,7 @@
 pragma solidity ^0.8.19;
 
-import {ERC20} from "solmate/tokens/ERC20.sol";
-import {Owned} from "solmate/auth/Owned.sol";
+import {ERC20} from "solmate/src/tokens/ERC20.sol";
+import {Owned} from "solmate/src/auth/Owned.sol";
 
 contract PancakeV4ERC20 is ERC20, Owned {
     constructor(string memory name, string memory symbol) ERC20(name, symbol, 18) Owned(msg.sender) {}