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bugfix: Link Balance Calculated Incorrectly #196

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bugfix: Link Balance Calculated Incorrectly #196

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4 changes: 2 additions & 2 deletions ethtx/providers/semantic_providers/repository.py
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@
from ethtx.providers.web3_provider import NodeDataProvider
from ethtx.semantics.protocols_router import amend_contract_semantics
from ethtx.semantics.solidity.precompiles import precompiles
from ethtx.semantics.standards.erc20 import ERC20_FUNCTIONS, ERC20_EVENTS
from ethtx.semantics.standards.erc20 import ERC20_FUNCTIONS, ERC20_EVENTS, ERC20_MODIFIED_EVENTS
from ethtx.semantics.standards.erc721 import ERC721_FUNCTIONS, ERC721_EVENTS


Expand Down Expand Up @@ -211,7 +211,7 @@ def _decode_standard_semantics(
if not address:
return standard, standard_semantics

if all(erc20_event in events for erc20_event in ERC20_EVENTS) and all(
if (all(erc20_event in events for erc20_event in ERC20_EVENTS) or all(erc20_event in events for erc20_event in ERC20_MODIFIED_EVENTS)) and all(
erc20_function in functions for erc20_function in ERC20_FUNCTIONS
):
standard = "ERC20"
Expand Down
25 changes: 25 additions & 0 deletions ethtx/semantics/standards/erc20.py
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,26 @@
],
)

erc20_modified_transfer_event = EventSemantics(
signature="0xe19260aff97b920c7df27010903aeb9c8d2be5d310a2c67824cf3f15396e4c16",
anonymous=False,
name="Transfer",
parameters=[
ParameterSemantics(
parameter_name="src", parameter_type="address", indexed=True
),
ParameterSemantics(
parameter_name="dst", parameter_type="address", indexed=True
),
ParameterSemantics(
parameter_name="value", parameter_type="uint256", indexed=False
),
ParameterSemantics(
parameter_name="data", parameter_type="bytes", indexed=False,dynamic=True
),
],
)

erc20_transfer_event_transformation = {
"__input2__": TransformationSemantics(
transformation="__input2__ / 10**token_decimals(__contract__)"
Expand Down Expand Up @@ -147,6 +167,11 @@
erc20_approval_event.signature: erc20_approval_event,
}

ERC20_MODIFIED_EVENTS = {
erc20_modified_transfer_event.signature: erc20_modified_transfer_event,
erc20_approval_event.signature: erc20_approval_event,
}

ERC20_FUNCTIONS = {
erc20_transfer_function.signature: erc20_transfer_function,
erc20_transferFrom_function.signature: erc20_transferFrom_function,
Expand Down