Solidity Interface & Canonical Declaration
function upgradeToAndCall(address newImplementation, bytes data) external payable
原子性更新代理合约的逻辑实现,并立即在新的实现上通过 delegatecall 执行初始化函数。
理论基础执行 Gas: 35,000 ~ 95,000 gas
返回值类型: void
Calldata 调用数据 ABI 编码布局账本
| Calldata Offset | Type | Parameter Name | Semantic Role |
|---|---|---|---|
| 0x00 ~ 0x03 (4B) | bytes4 | Method ID (msg.sig) | upgradeToAndCall(address,bytes) 的 4 字节函数选择器 |
| 0x04 ~ 0x23 (32B) | address | newImplementation | 新的逻辑实现合约 |
| 0x24 ~ 0x43 (32B) | bytes | data | 初始化函数调用编码数据 |
Keccak-256 密码学哈希推导链
标准 ASCII 签名字符串: upgradeToAndCall(address,bytes)
完整 256 位 Keccak 哈希: 0x4f1ef2866b98625bdfefae89411f7a82754ac4089eff8e78c8832329a538337f
截取前 4 字节 (Big-Endian): 0x4f1ef286
EVM 运行时调度器汇编代码特征 (Dispatcher Opcodes)
// 1. Load the first 32 bytes of transaction calldata
[0x0000] PUSH1 0x00
[0x0002] CALLDATALOAD
// 2. Right-shift by 224 bits (0xe0) to isolate the 4-byte selector
[0x0003] PUSH1 0xe0
[0x0005] SHR
// 3. Match against target selector 0x4f1ef286 and branch
[0x0006] DUP1
[0x0007] PUSH4 0x4f1ef286
[0x000c] EQ
[0x000d] PUSH2 0x0050
[0x0010] JUMPI // Jump to implementation if matched