Moonbeam上预编译合约的概述¶
概述¶
在Moonbeam上，预编译合约是拥有以太坊格式地址的原生Substrate代码，与其他智能合约一样能够可以使用以太坊API进行调用。预编译允许您直接调用Substrate runtime，其通常在Moonbeam的以太坊这端无法访问。
用于实施预编译的Substrate代码可以在EVM pallet中找到。EVM pallet包含了以太坊上的标准预编译以及一些不特定于以太坊的预编译。它也包含了通过通用Precompiles 特征创建和执行自定义预编译的能力。目前已经创建了好几个特定于Moonbeam的自定义预编译，您可以在Moonbeam代码库中找到。
以太坊预编译合约包含了带有大量计算的复杂功能，例如哈希和加密等。Moonbeam上自定义预编译合约提供对基于Substrate功能的访问，例如质押、治理、XCM相关函数等。
特定于Moonbeam的预编译可以通过以太坊API使用大家熟悉又简单易懂的Solidity接口来进行交互，它们最终被用于与底层Substrate接口进行交互。该流程如下图所示：
注意事项
在Moonbeam使用预编译合约时，可能会出现一些意想不到的后果。 请参阅安全注意事项 页面了解更多信息。
预编译合约地址¶
预编译合约是通过其地址并基于其原始网络来分类的。如果您将预编译地址转化至小数格式，并依据数值将其分类，则有以下几种类别：
- 0-1023 - 以太坊主网预编译
- 1024-2047 - 不在以太坊也不是特定于Moonbeam的预编译
- 2048-4095 - 特定于Moonbeam的预编译
以太坊主网预编译¶
| 合约 | 地址 |
|---|---|
| ECRECOVER | 0x0000000000000000000000000000000000000001 |
| SHA256 | 0x0000000000000000000000000000000000000002 |
| RIPEMD160 | 0x0000000000000000000000000000000000000003 |
| Identity | 0x0000000000000000000000000000000000000004 |
| Modular Exponentiation | 0x0000000000000000000000000000000000000005 |
| BN128Add | 0x0000000000000000000000000000000000000006 |
| BN128Mul | 0x0000000000000000000000000000000000000007 |
| BN128Pairing | 0x0000000000000000000000000000000000000008 |
| Blake2 | 0x0000000000000000000000000000000000000009 |
非Moonbeam特定或以太坊预编译¶
| 合约 | 地址 |
|---|---|
| SHA3FIPS256 | 0x0000000000000000000000000000000000000400 |
| Dispatch | 0x0000000000000000000000000000000000000401 |
| ECRecoverPublicKey | 0x0000000000000000000000000000000000000402 |
Moonbeam特定预编译¶
| 合约 | 地址 |
|---|---|
| Parachain Staking | 0x0000000000000000000000000000000000000800 |
| Crowdloan Rewards | 0x0000000000000000000000000000000000000801 |
| ERC-20 Interface | 0x0000000000000000000000000000000000000802 |
| Democracy | 0x0000000000000000000000000000000000000803 |
| Xtokens | 0x0000000000000000000000000000000000000804 |
| Relay Encoder | 0x0000000000000000000000000000000000000805 |
| XCM Transactor Legacy | 0x0000000000000000000000000000000000000806 |
| Author Mapping | 0x0000000000000000000000000000000000000807 |
| Batch | 0x0000000000000000000000000000000000000808 |
| Randomness | 0x0000000000000000000000000000000000000809 |
| Call Permit | 0x000000000000000000000000000000000000080a |
| Proxy | 0x000000000000000000000000000000000000080b |
| XCM Utils | 0x000000000000000000000000000000000000080C |
| XCM Transactor | 0x000000000000000000000000000000000000080d |
| Council Collective | 0x000000000000000000000000000000000000080e |
| Technical Committee Collective | 0x000000000000000000000000000000000000080f |
| Treasury Council Collective | 0x0000000000000000000000000000000000000810 |
| 合约 | 地址 |
|---|---|
| Parachain Staking | 0x0000000000000000000000000000000000000800 |
| Crowdloan Rewards | 0x0000000000000000000000000000000000000801 |
| ERC-20 Interface | 0x0000000000000000000000000000000000000802 |
| Democracy | 0x0000000000000000000000000000000000000803 |
| Xtokens | 0x0000000000000000000000000000000000000804 |
| Relay Encoder | 0x0000000000000000000000000000000000000805 |
| XCM Transactor Legacy | 0x0000000000000000000000000000000000000806 |
| Author Mapping | 0x0000000000000000000000000000000000000807 |
| Batch | 0x0000000000000000000000000000000000000808 |
| Randomness | 0x0000000000000000000000000000000000000809 |
| Call Permit | 0x000000000000000000000000000000000000080a |
| Proxy | 0x000000000000000000000000000000000000080b |
| XCM Utils | 0x000000000000000000000000000000000000080C |
| XCM Transactor | 0x000000000000000000000000000000000000080d |
| Council Collective | 0x000000000000000000000000000000000000080e |
| Technical Committee Collective | 0x000000000000000000000000000000000000080f |
| Treasury Council Collective | 0x0000000000000000000000000000000000000810 |
| Referenda | 0x0000000000000000000000000000000000000811 |
| Conviction Voting | 0x0000000000000000000000000000000000000812 |
| Preimage | 0x0000000000000000000000000000000000000813 |
| OpenGov Tech Committee | 0x0000000000000000000000000000000000000814 |
| 合约 | 地址 |
|---|---|
| Parachain Staking | 0x0000000000000000000000000000000000000800 |
| Crowdloan Rewards | 0x0000000000000000000000000000000000000801 |
| ERC-20 Interface | 0x0000000000000000000000000000000000000802 |
| Democracy | 0x0000000000000000000000000000000000000803 |
| Xtokens | 0x0000000000000000000000000000000000000804 |
| Relay Encoder | 0x0000000000000000000000000000000000000805 |
| XCM Transactor Legacy | 0x0000000000000000000000000000000000000806 |
| Author Mapping | 0x0000000000000000000000000000000000000807 |
| Batch | 0x0000000000000000000000000000000000000808 |
| Randomness | 0x0000000000000000000000000000000000000809 |
| Call Permit | 0x000000000000000000000000000000000000080a |
| Proxy | 0x000000000000000000000000000000000000080b |
| XCM Utils | 0x000000000000000000000000000000000000080C |
| XCM Transactor | 0x000000000000000000000000000000000000080d |
| Council Collective | 0x000000000000000000000000000000000000080e |
| Technical Committee Collective | 0x000000000000000000000000000000000000080f |
| Treasury Council Collective | 0x0000000000000000000000000000000000000810 |
| Referenda | 0x0000000000000000000000000000000000000811 |
| Conviction Voting | 0x0000000000000000000000000000000000000812 |
| Preimage | 0x0000000000000000000000000000000000000813 |
| OpenGov Tech Committee | 0x0000000000000000000000000000000000000814 |
Last update:
April 20, 2023
| Created: November 9, 2022
| Created: November 9, 2022