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Merge pull request #164 from flashbots/0x-bug

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Gui Heise 2021-12-16 13:41:10 -05:00 committed by GitHub
commit 408ff02de3
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1 changed files with 11 additions and 4 deletions
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15
mev_inspect/classifiers/specs/zero_ex.py
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@ -221,10 +221,16 @@ ZEROX_CLASSIFIER_SPECS = ZEROX_CONTRACT_SPECS + ZEROX_GENERIC_SPECS
def _get_taker_token_in_amount(
taker_address: str, token_in_address: str, child_transfers: List[Transfer]
trace: DecodedCallTrace,
taker_address: str,
token_in_address: str,
child_transfers: List[Transfer],
) -> int:
if len(child_transfers) != 2:
if trace.error is not None:
return 0
if len(child_transfers) < 2:
raise ValueError(
f"A settled order should consist of 2 child transfers, not {len(child_transfers)}."
)
@ -237,7 +243,8 @@ def _get_taker_token_in_amount(
for transfer in child_transfers:
if transfer.to_address == taker_address:
return transfer.amount
return 0
raise RuntimeError("Unable to find transfers matching 0x order.")
def _get_0x_token_in_data(
@ -259,7 +266,7 @@ def _get_0x_token_in_data(
)
token_in_amount = _get_taker_token_in_amount(
taker_address, token_in_address, child_transfers
trace, taker_address, token_in_address, child_transfers
)
return token_in_address, token_in_amount