Solidity Interface & Canonical Declaration
function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes data) external
安全划转指定代币类型 ID 的指定数量资产，验证接收方 onERC1155Received 钩子。
理论基础执行 Gas： 42,000 ~ 80,000 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) | safeTransferFrom(address,address,uint256,uint256,bytes) 的 4 字节函数选择器 |
| 0x04 ~ 0x23 (32B) | address | from | 资产扣除的源地址 |
| 0x24 ~ 0x43 (32B) | address | to | 资产划转的目标接收地址 |
| 0x44 ~ 0x63 (32B) | uint256 | id | 代币种类标识符 |
| 0x64 ~ 0x83 (32B) | uint256 | amount | 转账数量 |
| 0x84 ~ 0xa3 (32B) | bytes | data | 附加业务数据 |
Keccak-256 密码学哈希推导链
标准 ASCII 签名字符串： safeTransferFrom(address,address,uint256,uint256,bytes)
完整 256 位 Keccak 哈希： 0xf242432a01954b0e0efb67e72c9b3b8ed77690657780385b256ac9aba0e35f0b
截取前 4 字节 (Big-Endian)： 0xf242432a
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 0xf242432a and branch
[0x0006] DUP1
[0x0007] PUSH4 0xf242432a
[0x000c] EQ
[0x000d] PUSH2 0x0050
[0x0010] JUMPI // Jump to implementation if matched