refactor(ibc): refine the conversion logic between ibc coin and base coin during ibc transfer #723
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…coin during ibc transfer
WalkthroughThe pull request encompasses modifications across multiple files, primarily focusing on enhancing cross-chain functionality within the application. Key changes include updates to the Changes
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Actionable comments posted: 14
🧹 Outside diff range and nitpick comments (11)
x/ibc/middleware/keeper/keeper.go (1)
18-23: LGTM! Consider updating function documentation.The changes to the
NewKeeperfunction correctly reflect the modifications made to theKeeperstruct. The function signature and body have been updated appropriately to handle the newcrossChainKeeperparameter and remove therefundHookanderc20Keeperparameters.If there's any existing documentation for this function (e.g., godoc comments), please ensure it's updated to reflect these changes.
x/crosschain/precompile/contract.go (2)
36-36: LGTM. Consider updating documentation.The addition of the
crossChainKeeperfield to theKeeperstruct initialization is consistent with the new parameter and integrates the cross-chain functionality into the keeper.Consider updating the documentation for the
Keeperstruct (if it exists) to reflect this new field and its purpose in the cross-chain functionality.
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1-114: Summary: Cross-chain integration looks good.The changes in this file are minimal and focused on integrating cross-chain functionality:
- Added
crossChainKeeperparameter toNewPrecompiledContract.- Included
crossChainKeeperin theKeeperstruct initialization.These modifications align with the PR objectives and don't introduce any apparent issues. The overall structure and functionality of the contract remain intact, maintaining backwards compatibility.
As the cross-chain functionality is being integrated, consider reviewing the error handling and logging mechanisms throughout the codebase to ensure they adequately capture and report any cross-chain related issues or events.
types/target.go (1)
90-95: LGTM! Consider adding error handling for robustness.The
String()method implementation looks good and provides a consistent string representation of theFxTarget. It aligns well with the existingGetTarget()method while offering a different format for IBC targets.For added robustness, consider handling potential error cases:
func (i FxTarget) String() string { if i.isIBC { + if !strings.HasPrefix(i.SourceChannel, channeltypes.ChannelPrefix) { + return fmt.Sprintf("invalid-ibc-target:%s", i.SourceChannel) + } return fmt.Sprintf("ibc/%s/%s", strings.TrimPrefix(i.SourceChannel, channeltypes.ChannelPrefix), i.Prefix) } return i.target }This change ensures that the method handles cases where
SourceChannelmight not have the expected prefix, improving the robustness of the code.x/crosschain/types/expected_keepers.go (2)
63-64: LGTM: New methods for IBC functionality in Erc20KeeperThe new methods
IbcRefundandDeleteIBCTransferRelationare well-defined and consistent with the existing codebase style. They enhance the IBC transfer handling capabilities of theErc20Keeperinterface.Consider adding inline documentation for these new methods to explain their purpose and expected behavior.
Line range hint
1-93: Overall assessment: Changes enhance IBC functionalityThe modifications to this file align well with the PR objectives of refining the conversion logic between IBC coin and base coin during IBC transfer. The new methods in the
Erc20KeeperandIBCTransferKeeperinterfaces provide enhanced capabilities for handling IBC transfers and denom tracing.Key points:
- New import for
tmbytesis correctly added.- Two new methods in
Erc20Keeperimprove IBC refund and transfer relation management.- New
GetDenomTracemethod inIBCTransferKeeperenhances denom tracing capabilities.These changes should improve the cross-chain functionality of the application. Please address the typo mentioned earlier and consider adding inline documentation for the new methods to improve code maintainability.
x/crosschain/keeper/keeper_v1_test.go (1)
202-211: LGTM: Well-structured helper method for IBC denom traces.The
SetIBCDenommethod is a well-implemented helper for setting up IBC denomination traces in tests. It correctly constructs the prefixed denomination, creates theDenomTrace, and handles the case where the trace doesn't exist in the keeper.Consider adding error handling for the
ParseDenomTracecall, as it might return an error in some cases:func (suite *KeeperTestSuite) SetIBCDenom(portID, channelID, denom string) ibctransfertypes.DenomTrace { sourcePrefix := ibctransfertypes.GetDenomPrefix(portID, channelID) prefixedDenom := sourcePrefix + denom - denomTrace := ibctransfertypes.ParseDenomTrace(prefixedDenom) + denomTrace, err := ibctransfertypes.ParseDenomTrace(prefixedDenom) + suite.Require().NoError(err) traceHash := denomTrace.Hash() if !suite.App.IBCTransferKeeper.HasDenomTrace(suite.Ctx, traceHash) { suite.App.IBCTransferKeeper.SetDenomTrace(suite.Ctx, denomTrace) } return denomTrace }This change ensures that any parsing errors are caught and reported during testing.
x/ibc/middleware/types/expected_keepers.go (1)
17-19: Consider adding documentation comments to interface methodsAdding GoDoc comments to the methods in the
CrossChainKeeperinterface would improve readability and maintainability by clearly explaining the purpose, expected behavior, and usage of each method. This is especially helpful for interfaces, as it guides implementers on how to properly fulfill the contract.Example:
type CrossChainKeeper interface { // IBCCoinToEvm handles the conversion of an IBC coin to its EVM equivalent. IBCCoinToEvm(ctx sdk.Context, coin sdk.Coin, holder sdk.AccAddress) error // IBCCoinRefund processes the refund of an IBC coin to the holder. IBCCoinRefund(ctx sdk.Context, coin sdk.Coin, holder sdk.AccAddress, ibcChannel string, ibcSequence uint64) error // AfterIBCAckSuccess performs post-processing after a successful IBC acknowledgment. AfterIBCAckSuccess(ctx sdk.Context, sourceChannel string, sequence uint64) }x/crosschain/keeper/send_to_fx.go (1)
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72-74: Remove outdated TODO comment about converting to IBC tokenIn the
RelayTransferHandlermethod, the comment// todo convert to ibc tokenis no longer necessary since the conversion is now handled in thetransferIBCHandlerfunction with the introduction ofibcCoin. Removing this comment will help keep the code clean and prevent confusion.x/crosschain/keeper/many_to_one.go (1)
242-253: Handle potential errors fromConvertCoinmore thoroughly.After calling
k.erc20Keeper.ConvertCoin, consider inspecting the response for additional information or warnings that might need handling, even if an error isn't returned.Enhance error handling by checking the response:
_, err = k.erc20Keeper.ConvertCoin(ctx, &erc20types.MsgConvertCoin{ Coin: baseCoin, Receiver: common.BytesToAddress(holder).String(), Sender: holder.String(), }) +if err != nil { + return err +} // Handle any additional response data if necessary return nilx/ibc/middleware/keeper/relay_test.go (1)
Line range hint
17-231: Reconsider Commenting Out theTestOnRecvPacketFunctionThe entire
TestOnRecvPacketfunction has been commented out (lines 17-231). Commenting out test code reduces test coverage and might allow bugs to go unnoticed. If this test is outdated due to recent refactoring, consider updating it to align with the new logic. Alternatively, if it's no longer needed, it might be cleaner to remove it entirely from the codebase.
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📒 Files selected for processing (18)
- Makefile (1 hunks)
- app/keepers/keepers.go (2 hunks)
- types/target.go (1 hunks)
- x/crosschain/keeper/abci_test.go (3 hunks)
- x/crosschain/keeper/keeper_v1_test.go (2 hunks)
- x/crosschain/keeper/many_to_one.go (3 hunks)
- x/crosschain/keeper/send_to_fx.go (2 hunks)
- x/crosschain/mock/expected_keepers_mocks.go (4 hunks)
- x/crosschain/precompile/contract.go (1 hunks)
- x/crosschain/precompile/crosschain_test.go (0 hunks)
- x/crosschain/precompile/expected_keepers.go (1 hunks)
- x/crosschain/precompile/keeper.go (2 hunks)
- x/crosschain/types/expected_keepers.go (3 hunks)
- x/erc20/keeper/transfer_relation.go (1 hunks)
- x/ibc/middleware/keeper/keeper.go (1 hunks)
- x/ibc/middleware/keeper/relay.go (4 hunks)
- x/ibc/middleware/keeper/relay_test.go (8 hunks)
- x/ibc/middleware/types/expected_keepers.go (1 hunks)
💤 Files with no reviewable changes (1)
- x/crosschain/precompile/crosschain_test.go
🧰 Additional context used
🔇 Additional comments (27)
x/crosschain/precompile/expected_keepers.go (2)
Line range hint
1-65: Summary: New CrossChainKeeper interface enhances cross-chain functionalityThe addition of the
CrossChainKeeperinterface with theBaseCoinToIBCCoinmethod is a positive change that aligns with the PR objectives. It extends the cross-chain functionality, specifically for converting base coins to IBC coins during transfers. This change is well-integrated with the existing keeper interfaces in the file and follows good coding practices.
63-65: LGTM! New CrossChainKeeper interface looks good.The new
CrossChainKeeperinterface with theBaseCoinToIBCCoinmethod is well-defined and aligns with the PR objectives. The method signature is correct and follows Go conventions.Let's verify if this interface is implemented correctly in the codebase:
x/crosschain/types/expected_keepers.go (1)
7-7: LGTM: New import for tmbytesThe new import for
tmbytesfrom the CometBFT library is correctly added and necessary for the new method signature in theIBCTransferKeeperinterface.x/crosschain/keeper/keeper_v1_test.go (1)
14-14: LGTM: Import statement for IBC transfer types.The import of
ibctransfertypesis correctly added and necessary for the newSetIBCDenommethod.Makefile (1)
145-145: Verify the reduction in lint suppressions.The change from 32 to 31 in the
check-no-linttarget suggests that a lint suppression has been removed from the codebase. This is a positive change as it indicates a reduction in the number of lint suppressions.Please confirm that this change corresponds to an actual removal of a 'nolint' or '#nosec' comment in the codebase. You can use the following command to verify:
✅ Verification successful
Lint suppression count verified.
The number of 'nolint' or '#nosec' occurrences has been successfully reduced to 31, as reflected in the
check-no-linttarget.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Count the number of 'nolint' or '#nosec' comments in Go files # Test: Count 'nolint' or '#nosec' occurrences count=$(find . -name '*.go' -type f | xargs grep -E 'nolint|#nosec' | wc -l) echo "Number of 'nolint' or '#nosec' occurrences: $count" # Verify if the count matches the new expected value if [ "$count" -eq 31 ]; then echo "The count matches the new expected value (31)." else echo "The count does not match the new expected value. Please investigate." fiLength of output: 321
x/crosschain/mock/expected_keepers_mocks.go (5)
17-17: LGTM: New import added correctly.The new import for the
bytespackage is correctly added and is necessary for the newGetDenomTracemethod.
431-443: LGTM: New mock methodDeleteIBCTransferRelationadded correctly.The
DeleteIBCTransferRelationmethod is correctly implemented in theMockErc20Keeper. It follows the GoMock conventions and has the appropriate signature.
500-512: LGTM: New mock methodIbcRefundadded correctly.The
IbcRefundmethod is correctly implemented in theMockErc20Keeper. It follows the GoMock conventions and has the appropriate signature.
643-656: LGTM: New mock methodGetDenomTraceadded correctly.The
GetDenomTracemethod is correctly implemented in theMockIBCTransferKeeper. It follows the GoMock conventions, has the appropriate signature, and correctly uses thebytes.HexBytestype fordenomTraceHash.
Line range hint
1-857: Summary: Mock implementations enhanced for IBC and denomination tracing.The changes to this mock file introduce new methods that enhance the ability to test IBC transfer and denomination tracing functionality. These additions include:
- A new import for the
bytespackage.DeleteIBCTransferRelationmethod inMockErc20Keeper.IbcRefundmethod inMockErc20Keeper.GetDenomTracemethod inMockIBCTransferKeeper.These changes will allow for more comprehensive unit testing of systems that depend on these interfaces, particularly in scenarios involving IBC transfers and denomination tracing.
x/erc20/keeper/transfer_relation.go (2)
15-20: Ensure proper error handling fromConvertCoinThe error returned by
k.ConvertCoinis being returned directly. IfConvertCoinfails, additional context or actions might be necessary to handle the failure adequately.Consider logging the error or adding additional context to the error before returning it.
_, err := k.ConvertCoin(ctx, &types.MsgConvertCoin{ Coin: amount, Receiver: common.BytesToAddress(sender.Bytes()).String(), Sender: sender.String(), }) -return err +if err != nil { + return fmt.Errorf("failed to convert coin: %w", err) +} +return nil
10-20: Verify all references to the renamed function are updatedThe method
RefundAfterhas been renamed toIbcRefund. Ensure that all other references toRefundAfterin the codebase have been updated accordingly to prevent any broken references.Run the following script to check for any remaining references to
RefundAfter:x/ibc/middleware/keeper/relay.go (3)
6-6: Importingsdkerrorsfor error handlingThe addition of
sdkerrorsis appropriate, as it is used for wrapping errors in the updated code.
58-58: Proper handling of successful acknowledgementsThe call to
k.crossChainKeeper.AfterIBCAckSuccesscorrectly handles the logic after a successful packet acknowledgment.
85-85: Refactor refund logic to utilizecrossChainKeeperRefactoring to use
k.crossChainKeeper.IBCCoinRefundcentralizes the refund logic, enhancing code maintainability and readability.x/crosschain/keeper/send_to_fx.go (2)
92-96: Properly converting base coin to IBC coin before transferThe addition of
ibcCoin, err := k.BaseCoinToIBCCoin(ctx, coin, receive, target.String())ensures that the base coin is correctly converted to an IBC coin before initiating the transfer. Error handling is appropriately managed by checking and returning the error if it occurs.
105-105: Correct usage of the converted IBC coin in IBC transferBy passing
ibcCointotransfertypes.NewMsgTransfer, you ensure that the transfer uses the correctly converted IBC coin. This change is crucial for maintaining the integrity of cross-chain transactions.x/crosschain/precompile/keeper.go (1)
160-166: Confirm proper handling of theBaseCoinToIBCCoinconversionThe addition of the
BaseCoinToIBCCoinconversion whenoriginTokenisfalseensures that base coins are correctly converted to IBC coins before the transfer. This change is essential for refining the conversion logic during IBC transfers.Consider running integration tests to ensure that:
- The conversion logic handles various edge cases, such as zero amounts or maximum coin values.
- The function behaves correctly with different
fxTargetvalues.- Errors are appropriately returned and handled.
x/crosschain/keeper/many_to_one.go (5)
5-5: Import of "fmt" is appropriate and necessary.The addition of the
fmtpackage is required for string formatting used in the code, such as infmt.Sprintf.
13-13: Inclusion of Ethereum common package is justified.Importing
github.com/ethereum/go-ethereum/commonis necessary for Ethereum address conversions, specificallycommon.BytesToAddress.
16-16: Addition of erc20types import is appropriate.The
erc20typespackage is utilized in the code for operations involving the ERC20 module, such as invokingConvertCoin.
255-261: Ensure correctness of the refund process inIBCCoinRefund.Confirm that converting the IBC coin to base coin and then calling
k.erc20Keeper.IbcRefundaccurately processes the refund without side effects. Pay special attention to state changes and potential edge cases.Consider adding tests to cover various refund scenarios, ensuring that the refund logic behaves as expected under different conditions.
263-265: Validate cleanup operation inAfterIBCAckSuccess.Deleting the outgoing transfer relation after a successful IBC acknowledgment is critical. Ensure that this operation doesn't inadvertently affect other processes or data dependencies within the module.
Add logging or monitoring to track the deletion and assess its impact, and consider writing tests to verify that related functionalities remain unaffected.
x/crosschain/keeper/abci_test.go (4)
6-6: Importing "strings" package is necessaryThe addition of the
"strings"package is appropriate sincestrings.ToUpperis used in the code.
12-12: Importingibctransfertypesis appropriateThe import of
ibctransfertypesis necessary for accessingibctransfertypes.ModuleNameused later in the code.
72-72: Ensure the amount uses the correct denomination unitsConfirm that the amount
sendToFxClaim.Amountused insdk.NewCoin(ibcDenom, sendToFxClaim.Amount)is in the smallest unit of the token (typically1e-18for tokens with 18 decimals). This ensures accurate token balances and prevents potential discrepancies.
72-72: Verify the correctness of minting tokens toibctransfertypes.ModuleNameAt line 72, tokens are minted to the
ibctransfertypes.ModuleNamemodule account. Please verify if this is the intended behavior. Typically, tokens are minted to thecrosschainmodule or sent directly to user accounts. Minting to the IBC transfer module may have unintended effects if not handled properly.Run the following script to review all instances where
MintTokenToModuleis used and confirm that the correct module names are being used:
Summary by CodeRabbit
New Features
CrossChainKeeperinterface to support cross-chain operations.FxTargetinstances.Bug Fixes
Refactor
Tests