Created
May 20, 2022 01:04
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Monkey patch pyevm to support hardhat console.log
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| """ | |
| Monkey patch py-evm to support console.log | |
| """ | |
| from eth.abc import ComputationAPI, MessageAPI | |
| from eth.vm.computation import BaseComputation | |
| from eth_abi import decode_abi | |
| from eth_typing import Address | |
| CONSOLE_LOG_ADDRESS = Address( | |
| (0x000000000000000000636F6E736F6C652E6C6F67).to_bytes(20, "big") | |
| ) | |
| CONSOLE_LOG_METHODS = { | |
| 1368866505: [], | |
| 1309416733: ["int"], | |
| 4122065833: ["uint"], | |
| 1093685164: ["string"], | |
| 843419373: ["bool"], | |
| 741264322: ["address"], | |
| 199720790: ["bytes"], | |
| 1847107880: ["bytes1"], | |
| 3921027734: ["bytes2"], | |
| 763578662: ["bytes3"], | |
| 3764340945: ["bytes4"], | |
| 2793701517: ["bytes5"], | |
| 2927928721: ["bytes6"], | |
| 1322614312: ["bytes7"], | |
| 1334060334: ["bytes8"], | |
| 2428341456: ["bytes9"], | |
| 20780939: ["bytes10"], | |
| 67127854: ["bytes11"], | |
| 2258660029: ["bytes12"], | |
| 2488442420: ["bytes13"], | |
| 2456219775: ["bytes14"], | |
| 3667227872: ["bytes15"], | |
| 1717330180: ["bytes16"], | |
| 866084666: ["bytes17"], | |
| 3302112666: ["bytes18"], | |
| 1584093747: ["bytes19"], | |
| 1367925737: ["bytes20"], | |
| 3923391840: ["bytes21"], | |
| 3589990556: ["bytes22"], | |
| 2879508237: ["bytes23"], | |
| 4055063348: ["bytes24"], | |
| 193248344: ["bytes25"], | |
| 4172368369: ["bytes26"], | |
| 976705501: ["bytes27"], | |
| 3358255854: ["bytes28"], | |
| 1265222613: ["bytes29"], | |
| 3994207469: ["bytes30"], | |
| 3263516050: ["bytes31"], | |
| 666357637: ["bytes32"], | |
| 1812949376: ["uint", "uint"], | |
| 262402885: ["uint", "string"], | |
| 510514412: ["uint", "bool"], | |
| 1491830284: ["uint", "address"], | |
| 2534451664: ["string", "uint"], | |
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| 832238387: ["string", "address"], | |
| 910912146: ["bool", "uint"], | |
| 2414527781: ["bool", "string"], | |
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| 3884059252: ["uint", "uint", "uint"], | |
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| 3191032091: ["uint", "uint", "address"], | |
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| 2526862595: ["string", "uint", "uint"], | |
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| 1554033982: ["uint", "uint", "uint", "uint"], | |
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| 1717301556: ["address", "address", "address", "address"], | |
| } | |
| old_method = BaseComputation.apply_child_computation | |
| def apply_child_computation(self, child_msg: MessageAPI) -> ComputationAPI: | |
| if child_msg.to == CONSOLE_LOG_ADDRESS: | |
| sig = int.from_bytes(child_msg.data[:4], "big") | |
| values = decode_abi(CONSOLE_LOG_METHODS[sig], bytes(child_msg.data[4:])) | |
| if isinstance(values[0], str): | |
| print(values[0] % values[1:]) | |
| else: | |
| print(*values) | |
| return old_method(self, child_msg) | |
| def monkey_patch(): | |
| BaseComputation.apply_child_computation = apply_child_computation |
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