Comments (3)
I apologize for the late response here @JanRuettinger but it looks like this was an outdated version of eth-abi
. I'm actually not sure that [bad assumption, see next comments for answer]bytes32[]
is the right type for this call. I believe these are integers.
>>> from eth_abi import abi
>>> from eth_utils import to_bytes
>>> raw_output_hex = "0x0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000006aeaeff8cc50ece0000000000000000000000000000000000000000000000000000000000000000"
>>> output_bytes = to_bytes(hexstr=raw_output_hex)
>>> abi.decode(["uint256[]"], output_bytes)
((64, 128),)
>>> # with bytes32[]
>>> abi.decode(["bytes[]"], output_bytes)
((b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00@',
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80'),)
I'm going to close this as I can't reproduce with the latest version. But please ask to re-open if there are still any issues.
from eth-abi.
Oh I see. That is my mistake for using bytes32[]
and not bytes[]
. I can reproduce what you have there but are you sure this is the type you need? Are you sure these aren't integers to decode to? [see next comment]
from eth-abi.
I did some snooping and looked for bytes[]
return types on the methods in that contract and I do see that it was a call to multicall(uint256,bytes[])
which matches the function signature on that call.
However, what eth-abi returns is exactly what Solidity returns, so I don't see a bug here.
function decode(bytes memory _bytes) external pure returns (bytes[] memory) {
bytes[] memory _decoded = abi.decode(_bytes, (bytes[]));
return _decoded;
}
This is what I get as the return, notice the 0x
(b""
) at the end of the array
"bytes[]: 0x00000000000000000000000000000000000000000000000006aeaeff8cc50ece,0x"
edit: It looks like Action [13]
in that trace link you sent (the very last trace) is actually the call with 0x
. multicall(uint256,bytes[])
iterates on each value passed in to it and makes a call with each of them. That's why you only see one of the arguments in the next step... and you see the second argument in another step. Hope that clarifies what you were seeing.
from eth-abi.
Related Issues (20)
- Unable to decode Arrays of Structs HOT 4
- ImportError: cannot import name 'encode' from 'eth_abi' HOT 2
- Is there a way to match calldata/memory encoding conventions? HOT 1
- Byte value of length 32b results in decoding error using 'decode' HOT 2
- Decoding an array type returns a tuple instead of list HOT 5
- `ImportError: cannot import name 'getargspec' from 'inspect'` in Python >= 3.11 due to outdated `parsimonious` dependency version
- Wrong encoding output when using uint256[] HOT 1
- Decoding arbitrary length bytes fails due to expected padding HOT 2
- encoding tuple with nested tuple containing dynamic types HOT 3
- [Project Management] When will eth-abi>=4.0.0 be released? HOT 2
- Dependency errors for newer versions of uth-utils>=2.0.0 and eth-abi>=3.0.0
- Different behaviour: `encode_single` vs `encode` HOT 9
- typing/linting tools review
- Add utility method for getting an acceptable byte range from a list of ABI types
- OverflowError: Python int too large to convert to C ssize_t HOT 5
- decode failing on input that is not divided by 32 HOT 1
- Replace `functools.lru_cache`
- OverflowError when decode an event data with empty fields HOT 4
- Decode input data with bad padding HOT 2
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from eth-abi.