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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package token | ||
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| import ( | ||
| "context" | ||
| "math/big" | ||
| "strings" | ||
|
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| cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types" | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
|
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| "github.com/ethereum/go-ethereum/core" | ||
| "github.com/ethereum/go-ethereum/core/vm" | ||
|
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| "github.com/evmos/ethermint/crypto/ethsecp256k1" | ||
| evmkeeper "github.com/evmos/ethermint/x/evm/keeper" | ||
| evmtypes "github.com/evmos/ethermint/x/evm/types" | ||
|
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| ibctransferkeeper "github.com/cosmos/ibc-go/v7/modules/apps/transfer/keeper" | ||
| ibctransfertypes "github.com/cosmos/ibc-go/v7/modules/apps/transfer/types" | ||
|
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| tokentypes "github.com/irisnet/irismod/modules/token/types" | ||
| irismodtypes "github.com/irisnet/irismod/types" | ||
| ) | ||
|
|
||
| var ( | ||
| _ tokentypes.EVMKeeper = (*evmKeeper)(nil) | ||
| _ tokentypes.ICS20Keeper = (*ics20Keeper)(nil) | ||
| ) | ||
|
|
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| // WrapEVMKeeper wraps the given evmkeeper.Keeper and returns a new evmKeeper. | ||
| // | ||
| // ek: The evmkeeper.Keeper to be wrapped. | ||
| // Returns a pointer to the wrapped evmKeeper. | ||
| func WrapEVMKeeper(ek *evmkeeper.Keeper) tokentypes.EVMKeeper { | ||
| return &evmKeeper{ek: ek} | ||
| } | ||
|
|
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| type evmKeeper struct { | ||
| ek *evmkeeper.Keeper | ||
| } | ||
|
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| // ApplyMessage implements types.EVMKeeper. | ||
| func (e *evmKeeper) ApplyMessage(ctx sdk.Context, msg core.Message, tracer vm.EVMLogger, commit bool) (*irismodtypes.Result, error) { | ||
| res, err := e.ek.ApplyMessage(ctx, msg, tracer, commit) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &irismodtypes.Result{ | ||
| Hash: res.Hash, | ||
| Logs: evmtypes.LogsToEthereum(res.Logs), | ||
| Ret: res.Ret, | ||
| VMError: res.VmError, | ||
| GasUsed: res.GasUsed, | ||
| }, nil | ||
| } | ||
|
|
||
| // ChainID implements types.EVMKeeper. | ||
| func (e *evmKeeper) ChainID() *big.Int { | ||
| return e.ek.ChainID() | ||
| } | ||
|
|
||
| // EstimateGas implements types.EVMKeeper. | ||
| func (e *evmKeeper) EstimateGas(ctx context.Context, req *irismodtypes.EthCallRequest) (uint64, error) { | ||
| res, err := e.ek.EstimateGas(ctx, &evmtypes.EthCallRequest{ | ||
| Args: req.Args, | ||
| GasCap: req.GasCap, | ||
| ProposerAddress: req.ProposerAddress, | ||
| ChainId: req.ChainID, | ||
| }) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| return res.Gas, nil | ||
| } | ||
|
|
||
| // SupportedKey implements types.EVMKeeper. | ||
| func (e *evmKeeper) SupportedKey(pubKey cryptotypes.PubKey) bool { | ||
| _, ok := pubKey.(*ethsecp256k1.PubKey) | ||
| return ok | ||
| } | ||
|
|
||
| // WrapICS20Keeper wraps the given ibctransferkeeper.Keeper into an ics20Keeper. | ||
| // | ||
| // Parameters: | ||
| // - ik: the ibctransferkeeper.Keeper to be wrapped. | ||
| // | ||
| // Return: | ||
| // - *ics20Keeper: the wrapped ics20Keeper. | ||
| func WrapICS20Keeper(ik ibctransferkeeper.Keeper) tokentypes.ICS20Keeper { | ||
| return &ics20Keeper{ik: ik} | ||
| } | ||
|
|
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| type ics20Keeper struct { | ||
| ik ibctransferkeeper.Keeper | ||
| } | ||
|
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| // HasTrace implements types.ICS20Keeper. | ||
| func (i *ics20Keeper) HasTrace(ctx sdk.Context, denom string) bool { | ||
| hash, err := ibctransfertypes.ParseHexHash(strings.TrimPrefix(denom, "ibc/")) | ||
| if err != nil { | ||
| return false | ||
| } | ||
| _, has := i.ik.GetDenomTrace(ctx, hash) | ||
| return has | ||
| } |