feat(protocol): Additional integration tests, solidity bump, reduce TokenVault contract size

packages/protocol/.prettierrc.json

@@ -3,7 +3,8 @@
     {
       "files": ["*.sol", "*.ts"],
       "options": {
-        "tabWidth": 4
+        "tabWidth": 4,
+        "compiler": "^0.8.18"
       }
     }
   ],

packages/protocol/.solhint.json

@@ -2,7 +2,7 @@
   "extends": "solhint:recommended",
   "rules": {
     "avoid-low-level-calls": "off",
-    "compiler-version": ["error", "^0.8.0"],
+    "compiler-version": ["error", "^0.8.18"],
     "func-visibility": ["warn", { "ignoreConstructors": true }],
     "max-line-length": ["warn", 80],
     "no-empty-blocks": "off",

packages/protocol/contracts/L1/TaikoData.sol

@@ -75,15 +75,12 @@ library TaikoData {
 
     // This struct takes 9 slots.
     struct State {
-        // block id => block hash (some blocks' hashes won't be persisted,
-        // only the latest one if verified in a batch)
-        mapping(uint256 => bytes32) l2Hashes;
-        // block id => ProposedBlock
-        mapping(uint256 => ProposedBlock) proposedBlocks;
-        // block id => parent hash => fork choice
-        mapping(uint256 => mapping(bytes32 => ForkChoice)) forkChoices;
-        // proposer => commitSlot => hash(commitHash, commitHeight)
-        mapping(address => mapping(uint256 => bytes32)) commits;
+        // some blocks' hashes won't be persisted,
+        // only the latest one if verified in a batch
+        mapping(uint256 blockId => bytes32 blockHash) l2Hashes;
+        mapping(uint256 blockId => ProposedBlock proposedBlock) proposedBlocks;
+        mapping(uint256 blockId => mapping(bytes32 parentHash => ForkChoice forkChoice)) forkChoices;
+        mapping(address proposerAddress => mapping(uint256 commitSlot => bytes32 commitHash)) commits;
         // Never or rarely changed
         uint64 genesisHeight;
         uint64 genesisTimestamp;

packages/protocol/contracts/L1/TaikoL1.sol

@@ -89,7 +89,7 @@ contract TaikoL1 is EssentialContract, IHeaderSync, TaikoEvents {
         });
         LibVerifying.verifyBlocks({
             state: state,
-            config: getConfig(),
+            config: config,
             resolver: AddressResolver(this),
             maxBlocks: config.maxVerificationsPerTx,
             checkHalt: false

packages/protocol/contracts/L1/libs/LibProving.sol

@@ -73,6 +73,7 @@ library LibProving {
     error L1_ANCHOR_RECEIPT_ADDR();
     error L1_ANCHOR_RECEIPT_TOPICS();
     error L1_ANCHOR_RECEIPT_DATA();
+    error L1_HALTED();
 
     function proveBlock(
         TaikoData.State storage state,
@@ -81,7 +82,7 @@ library LibProving {
         uint256 blockId,
         bytes[] calldata inputs
     ) public {
-        assert(!LibUtils.isHalted(state));
+        if (LibUtils.isHalted(state)) revert L1_HALTED();
 
         // Check and decode inputs
         if (inputs.length != 3) revert L1_INPUT_SIZE();

packages/protocol/contracts/L2/TaikoL2.sol

@@ -28,12 +28,12 @@ contract TaikoL2 is AddressResolver, ReentrancyGuard, IHeaderSync {
 
     // Mapping from L2 block numbers to their block hashes.
     // All L2 block hashes will be saved in this mapping.
-    mapping(uint256 => bytes32) private _l2Hashes;
+    mapping(uint256 blockNumber => bytes32 blockHash) private _l2Hashes;
 
     // Mapping from L1 block numbers to their block hashes.
     // Note that only hashes of L1 blocks where at least one L2
     // block has been proposed will be saved in this mapping.
-    mapping(uint256 => bytes32) private _l1Hashes;
+    mapping(uint256 blockNumber => bytes32 blockHash) private _l1Hashes;
 
     // A hash to check te integrity of public inputs.
     bytes32 private _publicInputHash;

packages/protocol/contracts/bridge/EtherVault.sol

@@ -27,7 +27,7 @@ contract EtherVault is EssentialContract {
      * State Variables   *
      *********************/
 
-    mapping(address => bool) private _authorizedAddrs;
+    mapping(address addr => bool isAuthorized) private _authorizedAddrs;
     uint256[49] private __gap;
 
     /*********************

packages/protocol/contracts/bridge/TokenVault.sol

@@ -47,18 +47,20 @@ contract TokenVault is EssentialContract {
      *********************/
 
     // Tracks if a token on the current chain is a canonical or bridged token.
-    mapping(address => bool) public isBridgedToken;
+    mapping(address tokenAddress => bool isBridged) public isBridgedToken;
 
     // Mappings from bridged tokens to their canonical tokens.
-    mapping(address => CanonicalERC20) public bridgedToCanonical;
+    mapping(address bridgedAddress => CanonicalERC20 canonicalErc20)
+        public bridgedToCanonical;
 
     // Mappings from canonical tokens to their bridged tokens.
     // Also storing chainId for tokens across other chains aside from Ethereum.
-    // chainId => canonical address => bridged address
-    mapping(uint256 => mapping(address => address)) public canonicalToBridged;
+    mapping(uint256 chainId => mapping(address canonicalAddress => address bridgedAddress))
+        public canonicalToBridged;
 
     // Tracks the token and amount associated with a message hash.
-    mapping(bytes32 => MessageDeposit) public messageDeposits;
+    mapping(bytes32 msgHash => MessageDeposit messageDeposit)
+        public messageDeposits;
 
     uint256[47] private __gap;
 
@@ -108,6 +110,21 @@ contract TokenVault is EssentialContract {
         uint256 amount
     );
 
+    /*********************
+     * Custom Errors*
+     *********************/
+
+    error TOKENVAULT_INVALID_TO();
+    error TOKENVAULT_INVALID_VALUE();
+    error TOKENVAULT_INVALID_CALL_VALUE();
+    error TOKENVAULT_INVALID_TOKEN();
+    error TOKENVAULT_INVALID_AMOUNT();
+    error TOKENVAULT_CANONICAL_TOKEN_NOT_FOUND();
+    error TOKENVAULT_INVALID_OWNER();
+    error TOKENVAULT_INVALID_SRC_CHAIN_ID();
+    error TOKENVAULT_MESSAGE_NOT_FAILED();
+    error TOKENVAULT_INVALID_SENDER();
+
     /*********************
      * External Functions*
      *********************/
@@ -134,12 +151,11 @@ contract TokenVault is EssentialContract {
         address refundAddress,
         string memory memo
     ) external payable nonReentrant {
-        require(
-            to != address(0) &&
-                to != resolve(destChainId, "token_vault", false),
-            "V:to"
-        );
-        require(msg.value > processingFee, "V:msgValue");
+        if (
+            to == address(0) || to == resolve(destChainId, "token_vault", false)
+        ) revert TOKENVAULT_INVALID_TO();
+
+        if (msg.value <= processingFee) revert TOKENVAULT_INVALID_VALUE();
 
         IBridge.Message memory message;
         message.destChainId = destChainId;
@@ -152,7 +168,7 @@ contract TokenVault is EssentialContract {
         message.memo = memo;
 
         // prevent future PRs from changing the callValue when it must be zero
-        require(message.callValue == 0, "V:callValue");
+        if (message.callValue != 0) revert TOKENVAULT_INVALID_CALL_VALUE();
 
         bytes32 msgHash = IBridge(resolve("bridge", false)).sendMessage{
             value: msg.value
@@ -191,13 +207,13 @@ contract TokenVault is EssentialContract {
         address refundAddress,
         string memory memo
     ) external payable nonReentrant {
-        require(
-            to != address(0) &&
-                to != resolve(destChainId, "token_vault", false),
-            "V:to"
-        );
-        require(token != address(0), "V:token");
-        require(amount > 0, "V:amount");
+        if (
+            to == address(0) || to == resolve(destChainId, "token_vault", false)
+        ) revert TOKENVAULT_INVALID_TO();
+
+        if (token == address(0)) revert TOKENVAULT_INVALID_TOKEN();
+
+        if (amount == 0) revert TOKENVAULT_INVALID_AMOUNT();
 
         CanonicalERC20 memory canonicalToken;
         uint256 _amount;
@@ -206,7 +222,8 @@ contract TokenVault is EssentialContract {
         if (isBridgedToken[token]) {
             BridgedERC20(token).bridgeBurnFrom(msg.sender, amount);
             canonicalToken = bridgedToCanonical[token];
-            require(canonicalToken.addr != address(0), "V:canonicalToken");
+            if (canonicalToken.addr == address(0))
+                revert TOKENVAULT_CANONICAL_TOKEN_NOT_FOUND();
             _amount = amount;
         } else {
             // is a canonical token, meaning, it lives on this chain
@@ -271,20 +288,19 @@ contract TokenVault is EssentialContract {
         IBridge.Message calldata message,
         bytes calldata proof
     ) external nonReentrant {
-        require(message.owner != address(0), "B:owner");
-        require(message.srcChainId == block.chainid, "B:srcChainId");
+        if (message.owner == address(0)) revert TOKENVAULT_INVALID_OWNER();
+        if (message.srcChainId != block.chainid)
+            revert TOKENVAULT_INVALID_SRC_CHAIN_ID();
 
         IBridge bridge = IBridge(resolve("bridge", false));
         bytes32 msgHash = bridge.hashMessage(message);
 
         address token = messageDeposits[msgHash].token;
         uint256 amount = messageDeposits[msgHash].amount;
-        require(token != address(0), "B:ERC20Released");
-        require(
-            bridge.isMessageFailed(msgHash, message.destChainId, proof),
-            "V:notFailed"
-        );
+        if (token == address(0)) revert TOKENVAULT_INVALID_TOKEN();
 
+        if (!bridge.isMessageFailed(msgHash, message.destChainId, proof))
+            revert TOKENVAULT_MESSAGE_NOT_FAILED();
         messageDeposits[msgHash] = MessageDeposit(address(0), 0);
 
         if (amount > 0) {
@@ -321,10 +337,8 @@ contract TokenVault is EssentialContract {
         uint256 amount
     ) external nonReentrant onlyFromNamed("bridge") {
         IBridge.Context memory ctx = IBridge(msg.sender).context();
-        require(
-            ctx.sender == resolve(ctx.srcChainId, "token_vault", false),
-            "V:sender"
-        );
+        if (ctx.sender != resolve(ctx.srcChainId, "token_vault", false))
+            revert TOKENVAULT_INVALID_SENDER();
 
         address token;
         if (canonicalToken.chainId == block.chainid) {
@@ -367,12 +381,11 @@ contract TokenVault is EssentialContract {
     function _deployBridgedToken(
         CanonicalERC20 calldata canonicalToken
     ) private returns (address bridgedToken) {
-        bytes32 salt = keccak256(
-            abi.encodePacked(canonicalToken.chainId, canonicalToken.addr)
-        );
         bridgedToken = Create2Upgradeable.deploy(
             0, // amount of Ether to send
-            salt,
+            keccak256(
+                abi.encodePacked(canonicalToken.chainId, canonicalToken.addr)
+            ),
             type(BridgedERC20).creationCode
         );
 

packages/protocol/contracts/bridge/libs/LibBridgeData.sol

@@ -20,7 +20,7 @@ library LibBridgeData {
     struct State {
         uint256 nextMessageId;
         IBridge.Context ctx; // 3 slots
-        mapping(bytes32 => bool) etherReleased;
+        mapping(bytes32 msgHash => bool released) etherReleased;
         uint256[45] __gap;
     }
 

packages/protocol/contracts/test/libs/TestLibProving.sol

@@ -79,6 +79,7 @@ library TestLibProving {
     error L1_ANCHOR_RECEIPT_ADDR();
     error L1_ANCHOR_RECEIPT_TOPICS();
     error L1_ANCHOR_RECEIPT_DATA();
+    error L1_HALTED();
 
     function proveBlock(
         TaikoData.State storage state,
@@ -87,7 +88,7 @@ library TestLibProving {
         uint256 blockId,
         bytes[] calldata inputs
     ) public {
-        assert(!LibUtils.isHalted(state));
+        if (LibUtils.isHalted(state)) revert L1_HALTED();
 
         // Check and decode inputs
         if (inputs.length != 3) revert L1_INPUT_SIZE();

packages/protocol/contracts/thirdparty/AddressManager.sol

@@ -42,7 +42,7 @@ contract AddressManager is OwnableUpgradeable {
      * Variables *
      *************/
 
-    mapping(bytes32 => address) private addresses;
+    mapping(bytes32 nameHash => address addr) private addresses;
 
     /**********
      * Events *

packages/protocol/contracts/thirdparty/ERC20Upgradeable.sol

@@ -66,9 +66,10 @@ contract ERC20Upgradeable is
     IERC20Upgradeable,
     IERC20MetadataUpgradeable
 {
-    mapping(address => uint256) private _balances;
+    mapping(address owner => uint256 balance) private _balances;
 
-    mapping(address => mapping(address => uint256)) private _allowances;
+    mapping(address owner => mapping(address spender => uint256 allowance))
+        private _allowances;
 
     uint256 private _totalSupply;
 

packages/protocol/hardhat.config.ts

@@ -4,6 +4,7 @@ import "@openzeppelin/hardhat-upgrades";
 import "@typechain/hardhat";
 import "hardhat-abi-exporter";
 import "hardhat-gas-reporter";
+import "hardhat-contract-sizer";
 import { HardhatUserConfig } from "hardhat/config";
 import "solidity-coverage";
 import "solidity-docgen";
@@ -133,7 +134,7 @@ const config: HardhatUserConfig = {
                 },
             },
         },
-        version: "0.8.9",
+        version: "0.8.18",
     },
 };
 

packages/protocol/package.json

@@ -8,7 +8,7 @@
     "export:abi": "pnpm hardhat clear-abi && pnpm hardhat export-abi",
     "export:docs": "pnpm hardhat docgen && pnpm prettier --write ../website/pages/docs/reference/contract-documentation/**/*.md",
     "clean": "rm -rf abis cache && pnpm hardhat clean",
-    "lint:sol": "pnpm prettier '**/*.sol' --write && pnpm solhint 'contracts/**/*.sol' --fix",
+    "lint:sol": "pnpm prettier '**/*.sol' --write",
     "eslint": "pnpm exec eslint --ignore-path .eslintignore --ext .js,.ts .",
     "eslint:fix": "pnpm exec eslint --ignore-path .eslintignore --ext .js,.ts . --fix",
     "test": "pnpm hardhat test --grep '^[^integration]'",
@@ -18,9 +18,10 @@
     "test:genesis": "./test/genesis/generate_genesis.test.sh",
     "test:integration": "TEST_TYPE=integration ./test/test_integration.sh",
     "test:tokenomics": "TEST_TYPE=tokenomics ./test/test_integration.sh",
-    "test:all": "pnpm run test && pnpm run test:integration && pnpm run test:tokenomics",
+    "test:all": "pnpm run test && pnpm run test:integration && pnpm run test:tokenomics && pnpm run test:genesis",
     "deploy:hardhat": "./scripts/download_solc.sh && LOG_LEVEL=debug pnpm hardhat deploy_L1 --network hardhat --dao-vault 0xdf08f82de32b8d460adbe8d72043e3a7e25a3b39 --team-vault 0xdf08f82de32b8d460adbe8d72043e3a7e25a3b39 --l2-genesis-block-hash 0xee1950562d42f0da28bd4550d88886bc90894c77c9c9eaefef775d4c8223f259 --bridge-funder-private-key ddbf12f72c946bb1e6de5eaf580c51db51828ba198d9b0dba9c7d48ec748dc04 --bridge-fund 0xff --oracle-prover 0xdf08f82de32b8d460adbe8d72043e3a7e25a3b39 --confirmations 1",
-    "lint-staged": "lint-staged --allow-empty"
+    "lint-staged": "lint-staged --allow-empty",
+    "sizer": "pnpm hardhat size-contracts"
   },
   "lint-staged": {
     "*.sol": "pnpm lint:sol",
@@ -66,14 +67,15 @@
     "glob": "^8.1.0",
     "hardhat": "^2.8.3",
     "hardhat-abi-exporter": "^2.10.0",
+    "hardhat-contract-sizer": "^2.8.0",
     "hardhat-docgen": "^1.3.0",
     "hardhat-gas-reporter": "^1.0.7",
     "lint-staged": "^12.3.4",
     "merkle-patricia-tree": "^4.2.4",
     "prettier": "^2.5.1",
-    "prettier-plugin-solidity": "^1.0.0-beta.19",
+    "prettier-plugin-solidity": "^1.1.2",
     "rlp": "^3.0.0",
-    "solhint": "^3.3.7",
+    "solhint": "^3.3.8",
     "solidity-coverage": "^0.8.2",
     "solidity-docgen": "^0.6.0-beta.34",
     "ts-node": "^10.5.0",

packages/protocol/scripts/download_solc.sh

@@ -8,7 +8,7 @@ if [ -f "solc" ]; then
   exit 0
 fi
 
-VERSION=v0.8.9
+VERSION=v0.8.18
 
 if [ "$(uname)" = 'Darwin' ]; then
   SOLC_FILE_NAME=solc-macos