Port to Solidity 0.8.21 passes 3 tests

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "solidity.compileUsingRemoteVersion": "v0.8.21+commit.d9974bed"
+}

foundry-default.toml

@@ -1,5 +1,6 @@
 [profile.default]
-solc_version = '0.7.6'
+# solc_version = '0.7.6'
+solc_version = '0.8.21'
 libs = ['lib']
 remappings = [
     '@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/',

lib/@uniswap/v3-core

@@ -1 +0,0 @@
-../v3-core/contracts/

lib/@uniswap/v3-periphery

@@ -1 +0,0 @@
-../v3-periphery/contracts/

lib_sol8/v3-core/contracts/libraries/FullMath.sol

@@ -61,7 +61,7 @@ library FullMath {
         // Factor powers of two out of denominator
         // Compute largest power of two divisor of denominator.
         // Always >= 1.
-        uint256 twos = -denominator & denominator;
+        uint256 twos = uint256(-int256(denominator)) & denominator;
         // Divide denominator by power of two
         assembly {
             denominator := div(denominator, twos)

lib_sol8/v3-core/contracts/libraries/TickMath.sol

@@ -22,7 +22,7 @@ library TickMath {
     /// at the given tick
     function getSqrtRatioAtTick(int24 tick) internal pure returns (uint160 sqrtPriceX96) {
         uint256 absTick = tick < 0 ? uint256(-int256(tick)) : uint256(int256(tick));
-        require(absTick <= uint256(MAX_TICK), 'T');
+        require(absTick <= uint256(int256(MAX_TICK)), 'T');
 
         uint256 ratio = absTick & 0x1 != 0 ? 0xfffcb933bd6fad37aa2d162d1a594001 : 0x100000000000000000000000000000000;
         if (absTick & 0x2 != 0) ratio = (ratio * 0xfff97272373d413259a46990580e213a) >> 128;

lib_sol8/v3-periphery/contracts/interfaces/IERC20Metadata.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.7.0;
+pragma solidity >=0.8.0;
+//pragma solidity ^0.7.0;
 
 import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
 

lib_sol8/v3-periphery/contracts/interfaces/INonfungiblePositionManager.sol

@@ -2,8 +2,8 @@
 pragma solidity >=0.7.5;
 pragma abicoder v2;
 
-import '@openzeppelin/contracts/token/ERC721/IERC721Metadata.sol';
+import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
-import '@openzeppelin/contracts/token/ERC721/IERC721Enumerable.sol';
+import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';
 
 import './IPoolInitializer.sol';
 import './IERC721Permit.sol';

lib_sol8/v3-periphery/contracts/interfaces/external/IWETH9.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
-pragma solidity =0.7.6;
+// pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 
 import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
 

lib_sol8/v3-periphery/contracts/libraries/PoolAddress.sol

@@ -32,7 +32,7 @@ library PoolAddress {
     /// @return pool The contract address of the V3 pool
     function computeAddress(address factory, PoolKey memory key) internal pure returns (address pool) {
         require(key.token0 < key.token1);
-        pool = address(
+        pool = address(uint160(
             uint256(
                 keccak256(
                     abi.encodePacked(
@@ -43,6 +43,6 @@ library PoolAddress {
                     )
                 )
             )
-        );
+        ));
     }
 }

script/Deploy.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+// pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 
 import "forge-std/Script.sol";
 import "forge-std/console2.sol";

src/Constants.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "@uniswap/v3-core/contracts/interfaces/IUniswapV3Factory.sol";

src/Dexorder.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+// pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 import "./OrderLib.sol";
 import "./Vault.sol";
 pragma abicoder v2;

src/Factory.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 
 import "./VaultDeployer.sol";
 pragma abicoder v2;

src/MockERC20.sol

@@ -1,15 +1,22 @@
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
 
 contract MockERC20 is ERC20 {
 
-    constructor(string memory name, string memory symbol, uint8 decimals)
+    uint8 private _decimals;
+
+    constructor(string memory name, string memory symbol, uint8 decimals_)
     ERC20(name, symbol)
     {
-        _setupDecimals(decimals);
+        // _setupDecimals(decimals);
+        _decimals = decimals_;
     }
 
+    function decimals() public view override returns (uint8) {
+        return _decimals;
+    }
 
     function mint(address account, uint256 amount) external {
         _mint(account, amount);

src/OrderLib.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+// pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "@uniswap/v3-core/contracts/interfaces/IUniswapV3Pool.sol";

src/QueryHelper.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "v3-core/contracts/interfaces/IUniswapV3Pool.sol";

src/UniswapSwapper.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "./Constants.sol";

src/Util.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 library Util {

src/Vault.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "./Constants.sol";
@@ -31,7 +32,7 @@ contract Vault {
     }
 
     function withdraw(uint256 amount) public {
-        _withdrawNative(msg.sender, amount);
+        _withdrawNative(payable(msg.sender), amount);
     }
 
     function withdrawTo(address payable recipient, uint256 amount) public {

src/VaultAddress.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "./Constants.sol";
@@ -10,7 +11,7 @@ library VaultAddress {
     // keccak-256 hash of the Vault's bytecode (not the deployed bytecode but the initialization bytecode)
     // can paste into:
     // https://emn178.github.io/online-tools/keccak_256.html
-    bytes32 internal constant VAULT_INIT_CODE_HASH = 0xbc5f4b6509a7bbf6d9bcbd2b24c599e63143e9ba77aebe3d9486f1cbfcbda9ea;
+    bytes32 internal constant VAULT_INIT_CODE_HASH = 0x060e1878e07cde3b1fe03b6a8929c62c502510ed5dda30b278951f11dfc03490;
 
     // the contract being constructed must not have any constructor arguments or the determinism will be broken.  instead, use a callback to
     // get construction arguments
@@ -22,7 +23,7 @@ library VaultAddress {
 
     function computeAddress(address factory, address owner, uint8 num) internal pure returns (address vault) {
         bytes32 salt = keccak256(abi.encodePacked(owner,num));
-        vault = address(
+        vault = address(uint160(
             uint256(
                 keccak256(
                     abi.encodePacked(
@@ -33,6 +34,6 @@ library VaultAddress {
                     )
                 )
             )
-        );
+        ));
     }
 }

src/VaultDeployer.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 
 import "./Vault.sol";
 pragma abicoder v2;
@@ -32,7 +33,7 @@ contract VaultDeployer {
 
     function _deployVault(address owner, uint8 num) internal returns (address payable vault) {
         parameters = Parameters(owner);
-        vault = address(new Vault{salt: keccak256(abi.encodePacked(owner,num))}());
+        vault = payable(address(new Vault{salt: keccak256(abi.encodePacked(owner,num))}()));
         delete parameters;
         emit VaultCreated( owner, num );
     }

src/interface/IVaultDeployer.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 interface IVaultDeployer {

test/MockEnv.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "forge-std/console2.sol";

test/TestOrder.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "./MockEnv.sol";

test/TestSinglePool.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+//pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
 pragma abicoder v2;
 
 import "forge-std/console2.sol";

test/TestVault.sol

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: UNLICENSED
-pragma solidity =0.7.6;
+pragma solidity >=0.8.0;
+//pragma solidity =0.7.6;
 
 import "forge-std/console2.sol";
 import "../src/Factory.sol";