QianRWAFactory V2: same-transaction dev buy through the router
ETH above the deploy fee swaps WETH -> USDG -> quote -> new pool inside the launch transaction, floored by the caller's devBuyMinOut. The factory appends its own pool as the final hop. Fresh GuardHook; V1 factory stays authorized.
This commit is contained in:
Qian
@@ -72,8 +72,11 @@ underlying asset stays with its issuer.
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- **QianRWAFactory** launches tokens paired to an approved quote asset (a
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tokenized stock or USDG) instead of WETH. The launch works like the core
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factories: full supply into a locked one-sided Uniswap V4 position. The quote
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is a per-launch parameter against a controller allowlist, each quote carries
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its own liquidity tiers, and the deploy fee is exact (no dev buy).
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is a per-launch parameter against a controller allowlist, and each quote carries
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its own liquidity tiers. ETH sent above the deploy fee becomes a same-transaction
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dev buy: the factory routes it through `QianRWARouter` along the caller's path,
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bounded by the caller's `devBuyMinOut`, and appends the new pool itself so the
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final hop cannot be spoofed. Nobody can trade the token before its creator.
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- **QianRWAFeeRouter** splits a quote-paired token's accrued trading fees and
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pays them out as plain ERC20 transfers of the quote. A transfer the recipient
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cannot take, for example when a stock issuer blocklists the address, accrues
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@@ -90,11 +93,12 @@ source-verified on https://robinhoodchain.blockscout.com.
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| Contract | Address |
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| --- | --- |
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| QianRWAFactory | `0x5A4ecC6fb7Ab62EC69cB0902397A5EB0a3Cb16D3` |
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| QianRWAFactory (V2, dev buy) | `0x04953F4322BB1b800C438a9426cDacfCD9785860` |
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| QianRWAFactory V1 | `0x5A4ecC6fb7Ab62EC69cB0902397A5EB0a3Cb16D3` |
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| QianRWAFeeRouter | `0xc3a89be96b8BDb1123d2Fa40f18000e3FB1A7aAf` |
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| QianRWARouter | `0x8495A347f71e819dB9e5eC12c1FC64C79DbD8708` |
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| QianLocker (RWA stack) | `0x38ceAf1eF6528Aa5775820696A7D14e64136a22d` |
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| GuardHook (RWA stack) | `0x10bbb04ad4ef277daffeecc37a3019dc08dee000` |
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| GuardHook (RWA stack) | `0x2725462a10d14d863ce9a2ec5d95895d7d65a000` |
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## Layout
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@@ -3,11 +3,11 @@
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"deployedAt": "2026-07-19T20:51:38.473Z",
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"deployer": "0x92B92aA9fa5AefC957ab77904f23cf14d7369fA7",
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"locker": "0x38ceAf1eF6528Aa5775820696A7D14e64136a22d",
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"rwaFactory": "0x5A4ecC6fb7Ab62EC69cB0902397A5EB0a3Cb16D3",
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"rwaFactory": "0x04953F4322BB1b800C438a9426cDacfCD9785860",
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"rwaFeeRouter": "0xc3a89be96b8BDb1123d2Fa40f18000e3FB1A7aAf",
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"create2Factory": "0xe744510974F2c61dDAC2290238f8CBd375AeF1f2",
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"guardHook": "0x10bbb04ad4ef277daffeecc37a3019dc08dee000",
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"guardHookSalt": "0xcd353772db37b52865c269b4cf6643eb600565237ae1dbc6ae0bf1f57b2cfaec",
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"guardHook": "0x2725462a10d14d863ce9a2ec5d95895d7d65a000",
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"guardHookSalt": "0x3c5b0ba1f92f0e2c2c4e15a4789e7b6ead500fe74fcfd4e93f43a893d62a1759",
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"tiersUsd": [
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1900,
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3700,
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@@ -27,5 +27,8 @@
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"META": "0xc0D6457C16Cc70d6790Dd43521C899C87ce02f35",
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"AMD": "0x86923f96303D656E4aa86D9d42D1e57ad2023fdC",
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"USDG": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168"
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}
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},
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"rwaFactoryV1": "0x5A4ecC6fb7Ab62EC69cB0902397A5EB0a3Cb16D3",
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"guardHookV1": "0x10bbb04ad4ef277daffeecc37a3019dc08dee000",
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"factoryV2Note": "V2 2026-07-19: same-tx dev buy via router V2 (devBuyPath/devBuyMinOut); V1 factory still authorized in the locker"
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}
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@@ -14,13 +14,19 @@ import "./interfaces/IConfigurableHook.sol";
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import "./errors/Errors.sol";
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import "./QianLocker.sol";
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/// @notice Launches tokens against an allowlisted quote asset (tokenized stocks, stablecoins) instead of WETH; no dev buy.
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interface IQianRWARouter {
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function buy(PoolKey[] memory path, address token, uint256 minTokensOut, uint256 deadline) external payable returns (uint256);
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}
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/// @notice Launches tokens against an allowlisted quote asset (tokenized stocks, stablecoins) instead of WETH.
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/// @dev V2: optional same-tx dev buy — ETH above deployFee routes through the swap router along the caller's path.
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contract QianRWAFactory is ReentrancyGuard {
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using SafeERC20 for IERC20;
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using LiquidityProviderV4 for LiquidityProviderV4.Config;
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using CurrencyLibrary for Currency;
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event ERC20TokenCreated(address tokenAddress);
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event DevBuy(address indexed token, address indexed buyer, uint256 ethIn, uint256 tokensOut);
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event QuotePaired(address indexed token, address indexed quote);
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event QuoteApprovalChanged(address indexed quote, bool approved);
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event DeployFeeUpdated(uint256 oldFee, uint256 newFee);
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@@ -67,17 +73,19 @@ contract QianRWAFactory is ReentrancyGuard {
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address public immutable poolManager;
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address public immutable locker;
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address public immutable swapRouter;
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int24 private constant TICK_SPACING = 60;
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uint256 private constant FULL_TOKEN_SUPPLY = 1_000_000_000 * 10 ** 18;
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uint24 public constant MIN_POOL_FEE = 5000;
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uint24 public constant MAX_POOL_FEE = 200000;
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constructor(address _poolManager, address _locker) {
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if (_poolManager == address(0) || _locker == address(0)) revert BadRouterConfig();
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constructor(address _poolManager, address _locker, address _swapRouter) {
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if (_poolManager == address(0) || _locker == address(0) || _swapRouter == address(0)) revert BadRouterConfig();
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platformController = msg.sender;
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feeVault = msg.sender;
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poolManager = _poolManager;
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locker = _locker;
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swapRouter = _swapRouter;
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}
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function deployCoin(
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@@ -90,15 +98,17 @@ contract QianRWAFactory is ReentrancyGuard {
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address hookAddress,
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bytes calldata hookConfig,
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uint256 maxDeployFee,
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uint24 poolFee
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uint24 poolFee,
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PoolKey[] calldata devBuyPath,
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uint256 devBuyMinOut
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) public payable nonReentrant returns (address tokenAddress) {
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if (!deployCoinEnabled) revert DeployDisabled();
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if (!approvedQuotes[quote]) revert InvalidConfig();
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if (configId >= liquidityConfigCount[quote]) revert InvalidConfig();
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if (deployFee > maxDeployFee) revert DeployFeeTooHigh();
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if (poolFee < MIN_POOL_FEE || poolFee > MAX_POOL_FEE) revert InvalidPoolFee();
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// no dev buy on quote pairs: exact fee only, paid in raw ETH
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if (msg.value != deployFee) revert InsufficientDeployFee();
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// ETH above deployFee is the dev buy, swapped through the router below
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if (msg.value < deployFee) revert InsufficientDeployFee();
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address hook = hookAddress == address(0) ? guardHook : hookAddress;
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if (!approvedHooks[hook]) revert HookNotApproved();
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{
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@@ -118,10 +128,20 @@ contract QianRWAFactory is ReentrancyGuard {
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IConfigurableHook(hook).configureHook(poolId, tokenAddress, hookConfig);
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emit HookConfigured(tokenAddress, hook, poolId);
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}
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if (msg.value > 0 && feeVault != address(0)) {
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(bool ok, ) = feeVault.call{value: msg.value}("");
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if (deployFee > 0 && feeVault != address(0)) {
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(bool ok, ) = feeVault.call{value: deployFee}("");
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if (!ok) revert TransferFailed();
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}
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uint256 devBuyEth = msg.value - deployFee;
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if (devBuyEth > 0) {
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// caller's prefix ends at the quote; the real pool is appended so the final hop can't be spoofed
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PoolKey[] memory path = new PoolKey[](devBuyPath.length + 1);
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for (uint256 i = 0; i < devBuyPath.length; i++) path[i] = devBuyPath[i];
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path[devBuyPath.length] = tokenToPoolKey[tokenAddress];
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uint256 bought = IQianRWARouter(swapRouter).buy{value: devBuyEth}(path, tokenAddress, devBuyMinOut, block.timestamp);
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IERC20(tokenAddress).safeTransfer(msg.sender, bought);
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emit DevBuy(tokenAddress, msg.sender, devBuyEth, bought);
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}
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tokenConfigs[tokenAddress] = TokenConfig({
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deployTime: block.timestamp,
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metadata: _metadata,
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