commit

2025-12-18 13:07:35 +08:00
commit 76b7f838db
271 changed files with 88812 additions and 0 deletions
--- a/contracts/ytLp/tokens/USDY.sol
+++ b/contracts/ytLp/tokens/USDY.sol
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
+import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
+import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
+import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
+
+/**
+ * @title USDY Token
+ * @notice 统一计价代币
+ * @dev 只有授权的Vault可以铸造和销毁，UUPS可升级合约
+ */
+contract USDY is Initializable, ERC20Upgradeable, OwnableUpgradeable, UUPSUpgradeable {
+    
+    error Forbidden();
+    error InvalidVault();
+    
+    mapping(address => bool) public vaults;
+    
+    event VaultAdded(address indexed vault);
+    event VaultRemoved(address indexed vault);
+    
+    modifier onlyVault() {
+        if (!vaults[msg.sender]) revert Forbidden();
+        _;
+    }
+    
+    /**
+     * @notice 初始化合约
+     */
+    function initialize() external initializer {
+        __ERC20_init("YT USD", "USDY");
+        __Ownable_init(msg.sender);
+        __UUPSUpgradeable_init();
+    }
+    
+    /**
+     * @notice 授权升级（仅owner可调用）
+     * @param newImplementation 新实现合约地址
+     */
+    function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}
+    
+    /**
+     * @notice 添加授权的Vault地址
+     * @param _vault Vault合约地址
+     */
+    function addVault(address _vault) external onlyOwner {
+        if (_vault == address(0)) revert InvalidVault();
+        vaults[_vault] = true;
+        emit VaultAdded(_vault);
+    }
+    
+    /**
+     * @notice 移除授权的Vault地址
+     * @param _vault Vault合约地址
+     */
+    function removeVault(address _vault) external onlyOwner {
+        vaults[_vault] = false;
+        emit VaultRemoved(_vault);
+    }
+    
+    /**
+     * @notice 铸造USDY代币
+     * @param _account 接收地址
+     * @param _amount 铸造数量
+     */
+    function mint(address _account, uint256 _amount) external onlyVault {
+        _mint(_account, _amount);
+    }
+    
+    /**
+     * @notice 销毁USDY代币
+     * @param _account 销毁地址
+     * @param _amount 销毁数量
+     */
+    function burn(address _account, uint256 _amount) external onlyVault {
+        _burn(_account, _amount);
+    }
+    
+    /**
+     * @dev 预留存储空间，用于未来升级时添加新的状态变量
+     * 50个slot = 50 * 32 bytes = 1600 bytes
+     */
+    uint256[50] private __gap;
+}
+