evm: remove CommitStateDB, journal and stateObject (#84)

* evm: remove CommitStateDB and stateObject

* imported build fixes

* lint

* rm set nonce

* update account response

* changelog

CHANGELOG.md

@@ -39,6 +39,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### State Machine Breaking
 
+* (evm) [tharsis#84](https://github.com/tharsis/ethermint/pull/84) Remove `journal`, `CommitStateDB` and `stateObjects`.
 * (rpc, evm) [tharsis#81](https://github.com/tharsis/ethermint/pull/81) Remove tx `Receipt` from store and replace it with fields obtained from the Tendermint RPC client.
 * (evm) [tharsis#72](https://github.com/tharsis/ethermint/issues/72) Update `AccessList` to use `TransientStore` instead of map.
 * (evm) [tharsis#68](https://github.com/tharsis/ethermint/issues/68) Replace block hash storage map to use staking `HistoricalInfo`.

app/app.go

@@ -385,7 +385,7 @@ func NewEthermintApp(
 		params.NewAppModule(app.ParamsKeeper),
 		transferModule,
 		// Ethermint app modules
-		evm.NewAppModule(app.EvmKeeper, app.AccountKeeper, app.BankKeeper),
+		evm.NewAppModule(app.EvmKeeper, app.AccountKeeper),
 	)
 
 	// During begin block slashing happens after distr.BeginBlocker so that

docs/core/proto-docs.md

@@ -427,7 +427,7 @@ QueryAccountResponse is the response type for the Query/Account RPC method.
 | Field | Type | Label | Description |
 | ----- | ---- | ----- | ----------- |
 | `balance` | [string](#string) |  | balance is the balance of the EVM denomination. |
-| `code_hash` | [bytes](#bytes) |  | code_hash is the code bytes from the EOA. |
+| `code_hash` | [string](#string) |  | code hash is the hex-formatted code bytes from the EOA. |
 | `nonce` | [uint64](#uint64) |  | nonce is the account's sequence number. |
 
 

go.mod

@@ -45,7 +45,7 @@ require (
 	github.com/tyler-smith/go-bip39 v1.1.0
 	github.com/xlab/closer v0.0.0-20190328110542-03326addb7c2
 	github.com/xlab/suplog v1.3.0
-	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a
+	golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a // indirect
 	google.golang.org/genproto v0.0.0-20210607140030-00d4fb20b1ae
 	google.golang.org/grpc v1.38.0
 	gopkg.in/yaml.v2 v2.4.0

proto/ethermint/evm/v1alpha1/query.proto

@@ -75,8 +75,8 @@ message QueryAccountRequest {
 message QueryAccountResponse {
   // balance is the balance of the EVM denomination.
   string balance = 1;
-  // code_hash is the code bytes from the EOA.
-  bytes code_hash = 2;
+  // code hash is the hex-formatted code bytes from the EOA.
+  string code_hash = 2;
   // nonce is the account's sequence number.
   uint64 nonce = 3;
 }

tests/importer/importer_test.go

@@ -107,7 +107,7 @@ func createAndTestGenesis(t *testing.T, cms sdk.CommitMultiStore, ak authkeeper.
 	genBlock := ethcore.DefaultGenesisBlock()
 	ms := cms.CacheMultiStore()
 	ctx := sdk.NewContext(ms, tmproto.Header{}, false, logger)
-	evmKeeper.CommitStateDB.WithContext(ctx)
+	evmKeeper.WithContext(ctx)
 
 	// Set the default Ethermint parameters to the parameter keeper store
 	evmKeeper.SetParams(ctx, evmtypes.DefaultParams())
@@ -126,25 +126,19 @@ func createAndTestGenesis(t *testing.T, cms sdk.CommitMultiStore, ak authkeeper.
 		addr := ethcmn.HexToAddress(addrStr)
 		acc := genBlock.Alloc[addr]
 
-		evmKeeper.CommitStateDB.AddBalance(addr, acc.Balance)
-		evmKeeper.CommitStateDB.SetCode(addr, acc.Code)
-		evmKeeper.CommitStateDB.SetNonce(addr, acc.Nonce)
+		evmKeeper.AddBalance(addr, acc.Balance)
+		evmKeeper.SetCode(addr, acc.Code)
+		evmKeeper.SetNonce(addr, acc.Nonce)
 
 		for key, value := range acc.Storage {
-			evmKeeper.CommitStateDB.SetState(addr, key, value)
+			evmKeeper.SetState(addr, key, value)
 		}
 	}
 
 	// get balance of one of the genesis account having 400 ETH
-	b := evmKeeper.CommitStateDB.GetBalance(genInvestor)
+	b := evmKeeper.GetBalance(genInvestor)
 	require.Equal(t, "200000000000000000000", b.String())
 
-	// commit the stateDB with 'false' to delete empty objects
-	//
-	// NOTE: Commit does not yet return the intra merkle root (version)
-	_, err := evmKeeper.CommitStateDB.Commit(false)
-	require.NoError(t, err)
-
 	// persist multi-store cache state
 	ms.Write()
 
@@ -267,15 +261,13 @@ func TestImportBlocks(t *testing.T) {
 		ms := cms.CacheMultiStore()
 		ctx := sdk.NewContext(ms, tmproto.Header{}, false, logger)
 		ctx = ctx.WithBlockHeight(int64(block.NumberU64()))
-		evmKeeper.CommitStateDB.WithContext(ctx)
+		evmKeeper.WithContext(ctx)
 
 		if chainConfig.DAOForkSupport && chainConfig.DAOForkBlock != nil && chainConfig.DAOForkBlock.Cmp(block.Number()) == 0 {
 			applyDAOHardFork(evmKeeper)
 		}
 
-		for i, tx := range block.Transactions() {
-			evmKeeper.CommitStateDB.Prepare(tx.Hash(), block.Hash(), i)
-			// evmKeeper.CommitStateDB.Set(block.Hash())
+		for _, tx := range block.Transactions() {
 
 			receipt, gas, err := applyTransaction(
 				chainConfig, chainContext, nil, gp, evmKeeper, header, tx, usedGas, vmConfig,
@@ -287,10 +279,6 @@ func TestImportBlocks(t *testing.T) {
 		// apply mining rewards
 		accumulateRewards(chainConfig, evmKeeper, header, block.Uncles())
 
-		// commit stateDB
-		_, err := evmKeeper.CommitStateDB.Commit(chainConfig.IsEIP158(block.Number()))
-		require.NoError(t, err, "failed to commit StateDB")
-
 		// simulate BaseApp EndBlocker commitment
 		ms.Write()
 		cms.Commit()
@@ -325,12 +313,12 @@ func accumulateRewards(
 		r.Sub(r, header.Number)
 		r.Mul(r, blockReward)
 		r.Div(r, rewardBig8)
-		evmKeeper.CommitStateDB.AddBalance(uncle.Coinbase, r)
+		evmKeeper.AddBalance(uncle.Coinbase, r)
 		r.Div(blockReward, rewardBig32)
 		reward.Add(reward, r)
 	}
 
-	evmKeeper.CommitStateDB.AddBalance(header.Coinbase, reward)
+	evmKeeper.AddBalance(header.Coinbase, reward)
 }
 
 // ApplyDAOHardFork modifies the state database according to the DAO hard-fork
@@ -341,14 +329,13 @@ func accumulateRewards(
 // Ref: https://github.com/ethereum/go-ethereum/blob/52f2461774bcb8cdd310f86b4bc501df5b783852/consensus/misc/dao.go#L74
 func applyDAOHardFork(evmKeeper *evmkeeper.Keeper) {
 	// Retrieve the contract to refund balances into
-	if !evmKeeper.CommitStateDB.Exist(ethparams.DAORefundContract) {
-		evmKeeper.CommitStateDB.CreateAccount(ethparams.DAORefundContract)
+	if !evmKeeper.Exist(ethparams.DAORefundContract) {
+		evmKeeper.CreateAccount(ethparams.DAORefundContract)
 	}
 
 	// Move every DAO account and extra-balance account funds into the refund contract
 	for _, addr := range ethparams.DAODrainList() {
-		evmKeeper.CommitStateDB.AddBalance(ethparams.DAORefundContract, evmKeeper.CommitStateDB.GetBalance(addr))
-		evmKeeper.CommitStateDB.SetBalance(addr, new(big.Int))
+		evmKeeper.AddBalance(ethparams.DAORefundContract, evmKeeper.GetBalance(addr))
 	}
 }
 
@@ -374,7 +361,7 @@ func applyTransaction(
 
 	// Create a new environment which holds all relevant information
 	// about the transaction and calling mechanisms.
-	vmenv := ethvm.NewEVM(blockCtx, txCtx, evmKeeper.CommitStateDB, config, cfg)
+	vmenv := ethvm.NewEVM(blockCtx, txCtx, evmKeeper, config, cfg)
 
 	// Apply the transaction to the current state (included in the env)
 	execResult, err := ethcore.ApplyMessage(vmenv, msg, gp)
@@ -383,19 +370,11 @@ func applyTransaction(
 		return &ethtypes.Receipt{}, 0, nil
 	}
 
-	// Update the state with pending changes
-	var intRoot ethcmn.Hash
-	if config.IsByzantium(header.Number) {
-		err = evmKeeper.CommitStateDB.Finalise(true)
-	} else {
-		intRoot, err = evmKeeper.CommitStateDB.IntermediateRoot(config.IsEIP158(header.Number))
-	}
-
 	if err != nil {
 		return nil, execResult.UsedGas, err
 	}
 
-	root := intRoot.Bytes()
+	root := ethcmn.Hash{}.Bytes()
 	*usedGas += execResult.UsedGas
 
 	// Create a new receipt for the transaction, storing the intermediate root and gas used by the tx
@@ -410,11 +389,11 @@ func applyTransaction(
 	}
 
 	// Set the receipt logs and create a bloom for filtering
-	receipt.Logs, err = evmKeeper.CommitStateDB.GetLogs(tx.Hash())
+	receipt.Logs = evmKeeper.GetTxLogs(tx.Hash())
 	receipt.Bloom = ethtypes.CreateBloom(ethtypes.Receipts{receipt})
-	receipt.BlockHash = evmKeeper.CommitStateDB.BlockHash()
+	receipt.BlockHash = header.Hash()
 	receipt.BlockNumber = header.Number
-	receipt.TransactionIndex = uint(evmKeeper.CommitStateDB.TxIndex())
+	receipt.TransactionIndex = uint(evmKeeper.GetTxIndexTransient())
 
 	return receipt, execResult.UsedGas, err
 }

x/evm/genesis.go

@@ -18,16 +18,12 @@ func InitGenesis(
 	ctx sdk.Context,
 	k *keeper.Keeper,
 	accountKeeper types.AccountKeeper, // nolint: interfacer
-	bankKeeper types.BankKeeper,
 	data types.GenesisState,
 ) []abci.ValidatorUpdate {
 	k.WithContext(ctx)
 	k.WithChainID(ctx)
 
-	k.CommitStateDB.WithContext(ctx)
-
 	k.SetParams(ctx, data.Params)
-	evmDenom := data.Params.EvmDenom
 
 	for _, account := range data.Accounts {
 		address := ethcmn.HexToAddress(account.Address)
@@ -47,46 +43,25 @@ func InitGenesis(
 			)
 		}
 
-		evmBalance := bankKeeper.GetBalance(ctx, accAddress, evmDenom)
-		k.CommitStateDB.SetBalance(address, evmBalance.Amount.BigInt())
-		k.CommitStateDB.SetNonce(address, acc.GetSequence())
-		k.CommitStateDB.SetCode(address, ethcmn.Hex2Bytes(account.Code))
+		k.SetCode(address, ethcmn.Hex2Bytes(account.Code))
 
 		for _, storage := range account.Storage {
 			k.SetState(address, ethcmn.HexToHash(storage.Key), ethcmn.HexToHash(storage.Value))
 		}
 	}
 
-	var err error
 	for _, txLog := range data.TxsLogs {
-		err = k.CommitStateDB.SetLogs(ethcmn.HexToHash(txLog.Hash), txLog.EthLogs())
-		if err != nil {
-			panic(err)
-		}
+		k.SetLogs(ethcmn.HexToHash(txLog.Hash), txLog.EthLogs())
 	}
 
 	k.SetChainConfig(ctx, data.ChainConfig)
 
-	// set state objects and code to store
-	_, err = k.CommitStateDB.Commit(false)
-	if err != nil {
-		panic(err)
-	}
-
-	// set storage to store
-	// NOTE: don't delete empty object to prevent import-export simulation failure
-	err = k.CommitStateDB.Finalise(false)
-	if err != nil {
-		panic(err)
-	}
-
 	return []abci.ValidatorUpdate{}
 }
 
 // ExportGenesis exports genesis state of the EVM module
 func ExportGenesis(ctx sdk.Context, k *keeper.Keeper, ak types.AccountKeeper) *types.GenesisState {
 	k.WithContext(ctx)
-	k.CommitStateDB.WithContext(ctx)
 
 	// nolint: prealloc
 	var ethGenAccounts []types.GenesisAccount
@@ -106,7 +81,7 @@ func ExportGenesis(ctx sdk.Context, k *keeper.Keeper, ak types.AccountKeeper) *t
 
 		genAccount := types.GenesisAccount{
 			Address: addr.String(),
-			Code:    ethcmn.Bytes2Hex(k.CommitStateDB.GetCode(addr)),
+			Code:    ethcmn.Bytes2Hex(k.GetCode(addr)),
 			Storage: storage,
 		}
 

x/evm/genesis_test.go

@@ -91,13 +91,13 @@ func (suite *EvmTestSuite) TestInitGenesis() {
 			if tc.expPanic {
 				suite.Require().Panics(
 					func() {
-						_ = evm.InitGenesis(suite.ctx, suite.app.EvmKeeper, suite.app.AccountKeeper, suite.app.BankKeeper, *tc.genState)
+						_ = evm.InitGenesis(suite.ctx, suite.app.EvmKeeper, suite.app.AccountKeeper, *tc.genState)
 					},
 				)
 			} else {
 				suite.Require().NotPanics(
 					func() {
-						_ = evm.InitGenesis(suite.ctx, suite.app.EvmKeeper, suite.app.AccountKeeper, suite.app.BankKeeper, *tc.genState)
+						_ = evm.InitGenesis(suite.ctx, suite.app.EvmKeeper, suite.app.AccountKeeper, *tc.genState)
 					},
 				)
 			}

x/evm/handler.go

@@ -8,12 +8,11 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 
-	"github.com/cosmos/ethermint/x/evm/keeper"
 	"github.com/cosmos/ethermint/x/evm/types"
 )
 
 // NewHandler returns a handler for Ethermint type messages.
-func NewHandler(k *keeper.Keeper) sdk.Handler {
+func NewHandler(server types.MsgServer) sdk.Handler {
 	return func(ctx sdk.Context, msg sdk.Msg) (result *sdk.Result, err error) {
 		defer Recover(&err)
 
@@ -22,7 +21,7 @@ func NewHandler(k *keeper.Keeper) sdk.Handler {
 		switch msg := msg.(type) {
 		case *types.MsgEthereumTx:
 			// execute state transition
-			res, err := k.EthereumTx(sdk.WrapSDKContext(ctx), msg)
+			res, err := server.EthereumTx(sdk.WrapSDKContext(ctx), msg)
 			return sdk.WrapServiceResult(ctx, res, err)
 
 		default:

x/evm/handler_test.go

@@ -49,7 +49,7 @@ func (suite *EvmTestSuite) SetupTest() {
 
 	suite.app = app.Setup(checkTx)
 	suite.ctx = suite.app.BaseApp.NewContext(checkTx, tmproto.Header{Height: 1, ChainID: "ethermint-1", Time: time.Now().UTC()})
-	suite.app.EvmKeeper.CommitStateDB.WithContext(suite.ctx)
+	suite.app.EvmKeeper.WithContext(suite.ctx)
 	suite.handler = evm.NewHandler(suite.app.EvmKeeper)
 	suite.codec = suite.app.AppCodec()
 	suite.chainID = suite.app.EvmKeeper.ChainID()
@@ -84,7 +84,6 @@ func (suite *EvmTestSuite) TestHandleMsgEthereumTx() {
 		{
 			"passed",
 			func() {
-				suite.app.EvmKeeper.CommitStateDB.SetBalance(suite.from, big.NewInt(100))
 				to := ethcmn.BytesToAddress(suite.to)
 				tx = types.NewMsgEthereumTx(suite.chainID, 0, &to, big.NewInt(100), 0, big.NewInt(10000), nil, nil)
 				tx.From = suite.from.String()
@@ -189,11 +188,10 @@ func (suite *EvmTestSuite) TestHandlerLogs() {
 	suite.Require().Equal(len(txResponse.Logs[0].Topics), 2)
 
 	hash := []byte{1}
-	err = suite.app.EvmKeeper.CommitStateDB.SetLogs(ethcmn.BytesToHash(hash), types.LogsToEthereum(txResponse.Logs))
+	suite.app.EvmKeeper.SetLogs(ethcmn.BytesToHash(hash), types.LogsToEthereum(txResponse.Logs))
 	suite.Require().NoError(err)
 
-	logs, err := suite.app.EvmKeeper.CommitStateDB.GetLogs(ethcmn.BytesToHash(hash))
-	suite.Require().NoError(err, "failed to get logs")
+	logs := suite.app.EvmKeeper.GetTxLogs(ethcmn.BytesToHash(hash))
 
 	suite.Require().Equal(logs, txResponse.Logs)
 }
@@ -310,8 +308,6 @@ func (suite *EvmTestSuite) TestSendTransaction() {
 	gasLimit := uint64(21000)
 	gasPrice := big.NewInt(0x55ae82600)
 
-	suite.app.EvmKeeper.CommitStateDB.SetBalance(suite.from, big.NewInt(100))
-
 	// send simple value transfer with gasLimit=21000
 	tx := types.NewMsgEthereumTx(suite.chainID, 1, &ethcmn.Address{0x1}, big.NewInt(1), gasLimit, gasPrice, nil, nil)
 	tx.From = suite.from.String()
@@ -390,12 +386,12 @@ func (suite *EvmTestSuite) TestOutOfGasWhenDeployContract() {
 	err := tx.Sign(suite.ethSigner, suite.signer)
 	suite.Require().NoError(err)
 
-	snapshotCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper.CommitStateDB)
+	snapshotCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
 	suite.Require().Nil(err)
 
 	defer func() {
 		if r := recover(); r != nil {
-			currentCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper.CommitStateDB)
+			currentCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
 			suite.Require().Nil(err)
 			suite.Require().Equal(snapshotCommitStateDBJson, currentCommitStateDBJson)
 		} else {
@@ -419,13 +415,13 @@ func (suite *EvmTestSuite) TestErrorWhenDeployContract() {
 	err := tx.Sign(suite.ethSigner, suite.signer)
 	suite.Require().NoError(err)
 
-	snapshotCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper.CommitStateDB)
+	snapshotCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
 	suite.Require().Nil(err)
 
 	_, sdkErr := suite.handler(suite.ctx, tx)
 	suite.Require().NotNil(sdkErr)
 
-	currentCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper.CommitStateDB)
+	currentCommitStateDBJson, err := json.Marshal(suite.app.EvmKeeper)
 	suite.Require().Nil(err)
 	suite.Require().Equal(snapshotCommitStateDBJson, currentCommitStateDBJson)
 }

x/evm/keeper/abci.go

@@ -27,29 +27,13 @@ func (k *Keeper) BeginBlock(ctx sdk.Context, req abci.RequestBeginBlock) {
 // deleting the empty ones. It also sets the bloom filers for the request block to
 // the store. The EVM end block logic doesn't update the validator set, thus it returns
 // an empty slice.
-func (k Keeper) EndBlock(ctx sdk.Context, req abci.RequestEndBlock) []abci.ValidatorUpdate {
+func (k *Keeper) EndBlock(ctx sdk.Context, req abci.RequestEndBlock) []abci.ValidatorUpdate {
 	defer telemetry.ModuleMeasureSince(types.ModuleName, time.Now(), telemetry.MetricKeyEndBlocker)
 
 	// Gas costs are handled within msg handler so costs should be ignored
-	ctx = ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
-	k.CommitStateDB.WithContext(ctx)
+	infCtx := ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
 	k.WithContext(ctx)
 
-	// Update account balances before committing other parts of state
-	k.CommitStateDB.UpdateAccounts()
-
-	root, err := k.CommitStateDB.Commit(true)
-	// Commit state objects to KV store
-	if err != nil {
-		k.Logger(ctx).Error("failed to commit state objects", "error", err, "height", ctx.BlockHeight())
-		panic(err)
-	}
-
-	// reset all cache after account data has been committed, that make sure node state consistent
-	if err = k.CommitStateDB.Reset(root); err != nil {
-		panic(err)
-	}
-
 	// get the block bloom bytes from the transient store and set it to the persistent storage
 	bloomBig, found := k.GetBlockBloomTransient()
 	if !found {
@@ -57,7 +41,8 @@ func (k Keeper) EndBlock(ctx sdk.Context, req abci.RequestEndBlock) []abci.Valid
 	}
 
 	bloom := ethtypes.BytesToBloom(bloomBig.Bytes())
-	k.SetBlockBloom(ctx, req.Height, bloom)
+	k.SetBlockBloom(infCtx, req.Height, bloom)
+	k.WithContext(ctx)
 
 	return []abci.ValidatorUpdate{}
 }

x/evm/keeper/grpc_query.go

@@ -2,13 +2,10 @@ package keeper
 
 import (
 	"context"
-	"math/big"
 
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 
-	tmtypes "github.com/tendermint/tendermint/types"
-
 	"github.com/cosmos/cosmos-sdk/store/prefix"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/query"
@@ -33,19 +30,15 @@ func (k Keeper) Account(c context.Context, req *types.QueryAccountRequest) (*typ
 		)
 	}
 
-	ctx := sdk.UnwrapSDKContext(c)
-	k.CommitStateDB.WithContext(ctx)
+	addr := ethcmn.HexToAddress(req.Address)
 
-	so := k.CommitStateDB.GetOrNewStateObject(ethcmn.HexToAddress(req.Address))
-	balance, err := ethermint.MarshalBigInt(so.Balance())
-	if err != nil {
-		return nil, err
-	}
+	ctx := sdk.UnwrapSDKContext(c)
+	k.WithContext(ctx)
 
 	return &types.QueryAccountResponse{
-		Balance:  balance,
-		CodeHash: so.CodeHash(),
-		Nonce:    so.Nonce(),
+		Balance:  k.GetBalance(addr).String(),
+		CodeHash: k.GetCodeHash(addr).Hex(),
+		Nonce:    k.GetNonce(addr),
 	}, nil
 }
 
@@ -61,7 +54,7 @@ func (k Keeper) CosmosAccount(c context.Context, req *types.QueryCosmosAccountRe
 	}
 
 	ctx := sdk.UnwrapSDKContext(c)
-	k.CommitStateDB.WithContext(ctx)
+	k.WithContext(ctx)
 
 	ethAddr := ethcmn.HexToAddress(req.Address)
 	cosmosAddr := sdk.AccAddress(ethAddr.Bytes())
@@ -93,9 +86,9 @@ func (k Keeper) Balance(c context.Context, req *types.QueryBalanceRequest) (*typ
 	}
 
 	ctx := sdk.UnwrapSDKContext(c)
-	k.CommitStateDB.WithContext(ctx)
+	k.WithContext(ctx)
 
-	balanceInt := k.CommitStateDB.GetBalance(ethcmn.HexToAddress(req.Address))
+	balanceInt := k.GetBalance(ethcmn.HexToAddress(req.Address))
 	balance, err := ethermint.MarshalBigInt(balanceInt)
 	if err != nil {
 		return nil, status.Error(
@@ -130,12 +123,12 @@ func (k Keeper) Storage(c context.Context, req *types.QueryStorageRequest) (*typ
 	}
 
 	ctx := sdk.UnwrapSDKContext(c)
-	k.CommitStateDB.WithContext(ctx)
+	k.WithContext(ctx)
 
 	address := ethcmn.HexToAddress(req.Address)
 	key := ethcmn.HexToHash(req.Key)
 
-	state := k.CommitStateDB.GetState(address, key)
+	state := k.GetState(address, key)
 	stateHex := state.Hex()
 
 	if ethermint.IsEmptyHash(stateHex) {
@@ -163,10 +156,10 @@ func (k Keeper) Code(c context.Context, req *types.QueryCodeRequest) (*types.Que
 	}
 
 	ctx := sdk.UnwrapSDKContext(c)
-	k.CommitStateDB.WithContext(ctx)
+	k.WithContext(ctx)
 
 	address := ethcmn.HexToAddress(req.Address)
-	code := k.CommitStateDB.GetCode(address)
+	code := k.GetCode(address)
 
 	return &types.QueryCodeResponse{
 		Code: code,
@@ -187,19 +180,13 @@ func (k Keeper) TxLogs(c context.Context, req *types.QueryTxLogsRequest) (*types
 	}
 
 	ctx := sdk.UnwrapSDKContext(c)
-	k.CommitStateDB.WithContext(ctx)
+	k.WithContext(ctx)
 
 	hash := ethcmn.HexToHash(req.Hash)
-	logs, err := k.CommitStateDB.GetLogs(hash)
-	if err != nil {
-		return nil, status.Error(
-			codes.Internal,
-			err.Error(),
-		)
-	}
+	logs := k.GetTxLogs(hash)
 
 	return &types.QueryTxLogsResponse{
-		Logs: types.NewTransactionLogsFromEth(hash, logs).Logs,
+		Logs: types.NewLogsFromEth(logs),
 	}, nil
 }
 
@@ -277,59 +264,61 @@ func (k Keeper) StaticCall(c context.Context, req *types.QueryStaticCallRequest)
 		return nil, status.Error(codes.InvalidArgument, "empty request")
 	}
 
-	ctx := sdk.UnwrapSDKContext(c)
-	k.CommitStateDB.WithContext(ctx)
+	// ctx := sdk.UnwrapSDKContext(c)
+	// k.WithContext(ctx)
 
-	// parse the chainID from a string to a base-10 integer
-	chainIDEpoch, err := ethermint.ParseChainID(ctx.ChainID())
-	if err != nil {
-		return nil, status.Error(codes.Internal, err.Error())
-	}
+	// // parse the chainID from a string to a base-10 integer
+	// chainIDEpoch, err := ethermint.ParseChainID(ctx.ChainID())
+	// if err != nil {
+	// 	return nil, status.Error(codes.Internal, err.Error())
+	// }
 
-	txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
-	ethHash := ethcmn.BytesToHash(txHash)
+	// txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
+	// ethHash := ethcmn.BytesToHash(txHash)
 
-	var recipient *ethcmn.Address
-	if len(req.Address) > 0 {
-		addr := ethcmn.HexToAddress(req.Address)
-		recipient = &addr
-	}
+	// var recipient *ethcmn.Address
+	// if len(req.Address) > 0 {
+	// 	addr := ethcmn.HexToAddress(req.Address)
+	// 	recipient = &addr
+	// }
 
-	so := k.CommitStateDB.GetOrNewStateObject(*recipient)
-	sender := ethcmn.HexToAddress("0xaDd00275E3d9d213654Ce5223f0FADE8b106b707")
+	// so := k.GetOrNewStateObject(*recipient)
+	// sender := ethcmn.HexToAddress("0xaDd00275E3d9d213654Ce5223f0FADE8b106b707")
 
-	msg := types.NewMsgEthereumTx(
-		chainIDEpoch, so.Nonce(), recipient, big.NewInt(0), 100000000, big.NewInt(0), req.Input, nil,
-	)
-	msg.From = sender.Hex()
+	// msg := types.NewMsgEthereumTx(
+	// 	chainIDEpoch, so.Nonce(), recipient, big.NewInt(0), 100000000, big.NewInt(0), req.Input, nil,
+	// )
+	// msg.From = sender.Hex()
 
-	if err := msg.ValidateBasic(); err != nil {
-		return nil, status.Error(codes.Internal, err.Error())
-	}
+	// if err := msg.ValidateBasic(); err != nil {
+	// 	return nil, status.Error(codes.Internal, err.Error())
+	// }
 
-	ethMsg, err := msg.AsMessage()
-	if err != nil {
-		return nil, status.Error(codes.Internal, err.Error())
-	}
+	// ethMsg, err := msg.AsMessage()
+	// if err != nil {
+	// 	return nil, status.Error(codes.Internal, err.Error())
+	// }
 
-	st := &types.StateTransition{
-		Message:  ethMsg,
-		Csdb:     k.CommitStateDB.WithContext(ctx),
-		ChainID:  chainIDEpoch,
-		TxHash:   &ethHash,
-		Simulate: ctx.IsCheckTx(),
-		Debug:    false,
-	}
+	// st := &types.StateTransition{
+	// 	Message:  ethMsg,
+	// 	Csdb:     k.WithContext(ctx),
+	// 	ChainID:  chainIDEpoch,
+	// 	TxHash:   &ethHash,
+	// 	Simulate: ctx.IsCheckTx(),
+	// 	Debug:    false,
+	// }
 
-	config, found := k.GetChainConfig(ctx)
-	if !found {
-		return nil, status.Error(codes.Internal, types.ErrChainConfigNotFound.Error())
-	}
+	// config, found := k.GetChainConfig(ctx)
+	// if !found {
+	// 	return nil, status.Error(codes.Internal, types.ErrChainConfigNotFound.Error())
+	// }
 
-	ret, err := st.StaticCall(ctx, config)
-	if err != nil {
-		return nil, status.Error(codes.Internal, err.Error())
-	}
+	// ret, err := st.StaticCall(ctx, config)
+	// if err != nil {
+	// 	return nil, status.Error(codes.Internal, err.Error())
+	// }
 
-	return &types.QueryStaticCallResponse{Data: ret}, nil
+	// return &types.QueryStaticCallResponse{Data: ret}, nil
+
+	return nil, nil
 }

x/evm/keeper/grpc_query_test.go

@@ -5,6 +5,7 @@ import (
 
 	"google.golang.org/grpc/metadata"
 
+	"github.com/ethereum/go-ethereum/common"
 	ethcmn "github.com/ethereum/go-ethereum/common"
 	ethtypes "github.com/ethereum/go-ethereum/core/types"
 	ethcrypto "github.com/ethereum/go-ethereum/crypto"
@@ -33,7 +34,7 @@ func (suite *KeeperTestSuite) TestQueryAccount() {
 				suite.app.BankKeeper.SetBalance(suite.ctx, suite.address.Bytes(), ethermint.NewPhotonCoinInt64(0))
 				expAccount = &types.QueryAccountResponse{
 					Balance:  "0",
-					CodeHash: ethcrypto.Keccak256(nil),
+					CodeHash: common.BytesToHash(ethcrypto.Keccak256(nil)).Hex(),
 					Nonce:    0,
 				}
 				req = &types.QueryAccountRequest{
@@ -48,7 +49,7 @@ func (suite *KeeperTestSuite) TestQueryAccount() {
 				suite.app.BankKeeper.SetBalance(suite.ctx, suite.address.Bytes(), ethermint.NewPhotonCoinInt64(100))
 				expAccount = &types.QueryAccountResponse{
 					Balance:  "100",
-					CodeHash: ethcrypto.Keccak256(nil),
+					CodeHash: common.BytesToHash(ethcrypto.Keccak256(nil)).Hex(),
 					Nonce:    0,
 				}
 				req = &types.QueryAccountRequest{
@@ -245,7 +246,7 @@ func (suite *KeeperTestSuite) TestQueryStorage() {
 				key := ethcmn.BytesToHash([]byte("key"))
 				value := ethcmn.BytesToHash([]byte("value"))
 				expValue = value.String()
-				suite.app.EvmKeeper.CommitStateDB.SetState(suite.address, key, value)
+				suite.app.EvmKeeper.SetState(suite.address, key, value)
 				req = &types.QueryStorageRequest{
 					Address: suite.address.String(),
 					Key:     key.String(),
@@ -300,7 +301,7 @@ func (suite *KeeperTestSuite) TestQueryCode() {
 			"success",
 			func() {
 				expCode = []byte("code")
-				suite.app.EvmKeeper.CommitStateDB.SetCode(suite.address, expCode)
+				suite.app.EvmKeeper.SetCode(suite.address, expCode)
 
 				req = &types.QueryCodeRequest{
 					Address: suite.address.String(),
@@ -377,7 +378,7 @@ func (suite *KeeperTestSuite) TestQueryTxLogs() {
 					},
 				}
 
-				suite.app.EvmKeeper.CommitStateDB.SetLogs(hash, types.LogsToEthereum(expLogs))
+				suite.app.EvmKeeper.SetLogs(hash, types.LogsToEthereum(expLogs))
 
 				req = &types.QueryTxLogsRequest{
 					Hash: hash.String(),
@@ -486,8 +487,8 @@ func (suite *KeeperTestSuite) TestQueryBlockLogs() {
 					},
 				}
 
-				suite.app.EvmKeeper.CommitStateDB.SetLogs(ethcmn.BytesToHash([]byte("tx_hash_0")), types.LogsToEthereum(expLogs[0].Logs))
-				suite.app.EvmKeeper.CommitStateDB.SetLogs(ethcmn.BytesToHash([]byte("tx_hash_1")), types.LogsToEthereum(expLogs[1].Logs))
+				suite.app.EvmKeeper.SetLogs(ethcmn.BytesToHash([]byte("tx_hash_0")), types.LogsToEthereum(expLogs[0].Logs))
+				suite.app.EvmKeeper.SetLogs(ethcmn.BytesToHash([]byte("tx_hash_1")), types.LogsToEthereum(expLogs[1].Logs))
 
 				req = &types.QueryBlockLogsRequest{
 					Hash: hash.String(),

x/evm/keeper/invariants.go

@@ -1,105 +0,0 @@
-package keeper
-
-import (
-	"fmt"
-
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
-
-	ethermint "github.com/cosmos/ethermint/types"
-	"github.com/cosmos/ethermint/x/evm/types"
-)
-
-const (
-	balanceInvariant = "balance"
-	nonceInvariant   = "nonce"
-)
-
-// RegisterInvariants registers the evm module invariants
-func RegisterInvariants(ir sdk.InvariantRegistry, k Keeper) {
-	ir.RegisterRoute(types.ModuleName, balanceInvariant, k.BalanceInvariant())
-	ir.RegisterRoute(types.ModuleName, nonceInvariant, k.NonceInvariant())
-}
-
-// BalanceInvariant checks that all auth module's EthAccounts in the application have the same balance
-// as the EVM one.
-func (k Keeper) BalanceInvariant() sdk.Invariant {
-	return func(ctx sdk.Context) (string, bool) {
-		var (
-			msg   string
-			count int
-		)
-
-		k.CommitStateDB.WithContext(ctx)
-
-		k.accountKeeper.IterateAccounts(ctx, func(account authtypes.AccountI) bool {
-			ethAccount, ok := account.(*ethermint.EthAccount)
-			if !ok {
-				// ignore non EthAccounts
-				return false
-			}
-
-			evmDenom := k.GetParams(ctx).EvmDenom
-
-			accountBalance := k.bankKeeper.GetBalance(ctx, ethAccount.GetAddress(), evmDenom)
-			evmBalance := k.CommitStateDB.GetBalance(ethAccount.EthAddress())
-
-			if evmBalance.Cmp(accountBalance.Amount.BigInt()) != 0 {
-				count++
-				msg += fmt.Sprintf(
-					"\tbalance mismatch for address %s: account balance %s, evm balance %s\n",
-					account.GetAddress(), accountBalance.String(), evmBalance.String(),
-				)
-			}
-
-			return false
-		})
-
-		broken := count != 0
-
-		return sdk.FormatInvariant(
-			types.ModuleName, balanceInvariant,
-			fmt.Sprintf("account balances mismatches found %d\n%s", count, msg),
-		), broken
-	}
-}
-
-// NonceInvariant checks that all auth module's EthAccounts in the application have the same nonce
-// sequence as the EVM.
-func (k Keeper) NonceInvariant() sdk.Invariant {
-	return func(ctx sdk.Context) (string, bool) {
-		var (
-			msg   string
-			count int
-		)
-
-		k.CommitStateDB.WithContext(ctx)
-
-		k.accountKeeper.IterateAccounts(ctx, func(account authtypes.AccountI) bool {
-			ethAccount, ok := account.(*ethermint.EthAccount)
-			if !ok {
-				// ignore non EthAccounts
-				return false
-			}
-
-			evmNonce := k.CommitStateDB.GetNonce(ethAccount.EthAddress())
-
-			if evmNonce != ethAccount.Sequence {
-				count++
-				msg += fmt.Sprintf(
-					"\nonce mismatch for address %s: account nonce %d, evm nonce %d\n",
-					account.GetAddress(), ethAccount.Sequence, evmNonce,
-				)
-			}
-
-			return false
-		})
-
-		broken := count != 0
-
-		return sdk.FormatInvariant(
-			types.ModuleName, nonceInvariant,
-			fmt.Sprintf("account nonces mismatches found %d\n%s", count, msg),
-		), broken
-	}
-}

x/evm/keeper/invariants_test.go

@@ -1,138 +0,0 @@
-package keeper_test
-
-import (
-	"math/big"
-
-	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
-	"github.com/cosmos/ethermint/crypto/ethsecp256k1"
-	ethermint "github.com/cosmos/ethermint/types"
-	ethcmn "github.com/ethereum/go-ethereum/common"
-)
-
-func (suite *KeeperTestSuite) TestBalanceInvariant() {
-	privkey, err := ethsecp256k1.GenerateKey()
-	suite.Require().NoError(err)
-
-	address := ethcmn.HexToAddress(privkey.PubKey().Address().String())
-
-	testCases := []struct {
-		name      string
-		malleate  func()
-		expBroken bool
-	}{
-		{
-			"balance mismatch",
-			func() {
-				acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, address.Bytes())
-				suite.Require().NotNil(acc)
-				suite.app.BankKeeper.SetBalance(suite.ctx, acc.GetAddress(), ethermint.NewPhotonCoinInt64(1))
-				suite.Require().NoError(err)
-				suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-
-				suite.app.EvmKeeper.CommitStateDB.SetBalance(address, big.NewInt(1000))
-			},
-			true,
-		},
-		{
-			"balance ok",
-			func() {
-				acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, address.Bytes())
-				suite.Require().NotNil(acc)
-				suite.app.BankKeeper.SetBalance(suite.ctx, acc.GetAddress(), ethermint.NewPhotonCoinInt64(1))
-				suite.Require().NoError(err)
-				suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-
-				suite.app.EvmKeeper.CommitStateDB.SetBalance(address, big.NewInt(1))
-			},
-			false,
-		},
-		{
-			"invalid account type",
-			func() {
-				acc := authtypes.NewBaseAccountWithAddress(address.Bytes())
-				suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-			},
-			false,
-		},
-	}
-
-	for _, tc := range testCases {
-		suite.Run(tc.name, func() {
-			suite.SetupTest() // reset values
-
-			suite.app.EvmKeeper.CommitStateDB.WithContext(suite.ctx)
-			tc.malleate()
-
-			_, broken := suite.app.EvmKeeper.BalanceInvariant()(suite.ctx)
-			if tc.expBroken {
-				suite.Require().True(broken)
-			} else {
-				suite.Require().False(broken)
-			}
-		})
-	}
-}
-
-func (suite *KeeperTestSuite) TestNonceInvariant() {
-	privkey, err := ethsecp256k1.GenerateKey()
-	suite.Require().NoError(err)
-
-	address := ethcmn.HexToAddress(privkey.PubKey().Address().String())
-
-	testCases := []struct {
-		name      string
-		malleate  func()
-		expBroken bool
-	}{
-		{
-			"nonce mismatch",
-			func() {
-				acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, address.Bytes())
-				suite.Require().NotNil(acc)
-				err := acc.SetSequence(1)
-				suite.Require().NoError(err)
-				suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-
-				suite.app.EvmKeeper.CommitStateDB.SetNonce(address, 100)
-			},
-			true,
-		},
-		{
-			"nonce ok",
-			func() {
-				acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, address.Bytes())
-				suite.Require().NotNil(acc)
-				err := acc.SetSequence(1)
-				suite.Require().NoError(err)
-				suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-
-				suite.app.EvmKeeper.CommitStateDB.SetNonce(address, 1)
-			},
-			false,
-		},
-		{
-			"invalid account type",
-			func() {
-				acc := authtypes.NewBaseAccountWithAddress(address.Bytes())
-				suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-			},
-			false,
-		},
-	}
-
-	for _, tc := range testCases {
-		suite.Run(tc.name, func() {
-			suite.SetupTest() // reset values
-
-			suite.app.EvmKeeper.CommitStateDB.WithContext(suite.ctx)
-			tc.malleate()
-
-			_, broken := suite.app.EvmKeeper.NonceInvariant()(suite.ctx)
-			if tc.expBroken {
-				suite.Require().True(broken)
-			} else {
-				suite.Require().False(broken)
-			}
-		})
-	}
-}

x/evm/keeper/keeper.go

@@ -42,10 +42,6 @@ type Keeper struct {
 	eip155ChainID *big.Int
 	debug         bool
 
-	// TODO: deprecate
-	// Ethermint concrete implementation on the EVM StateDB interface
-	CommitStateDB *types.CommitStateDB
-
 	// hash header for the current height. Reset during abci.RequestBeginBlock
 	headerHash common.Hash
 }
@@ -69,7 +65,6 @@ func NewKeeper(
 		stakingKeeper: sk,
 		storeKey:      storeKey,
 		transientKey:  transientKey,
-		CommitStateDB: types.NewCommitStateDB(sdk.Context{}, storeKey, transientKey, paramSpace, ak, bankKeeper),
 	}
 }
 

x/evm/keeper/msg_server.go

@@ -2,20 +2,15 @@ package keeper
 
 import (
 	"context"
-	"errors"
-	"math/big"
 	"time"
 
 	"github.com/armon/go-metrics"
-	ethcmn "github.com/ethereum/go-ethereum/common"
-	ethtypes "github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/core/vm"
 
+	tmbytes "github.com/tendermint/tendermint/libs/bytes"
 	tmtypes "github.com/tendermint/tendermint/types"
 
 	"github.com/cosmos/cosmos-sdk/telemetry"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 
 	"github.com/cosmos/ethermint/x/evm/types"
 )
@@ -26,17 +21,7 @@ func (k *Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*t
 	defer telemetry.ModuleMeasureSince(types.ModuleName, time.Now(), types.TypeMsgEthereumTx)
 
 	ctx := sdk.UnwrapSDKContext(goCtx)
-	k.CommitStateDB.WithContext(ctx)
-
-	ethMsg, err := msg.AsMessage()
-	if err != nil {
-		return nil, sdkerrors.Wrap(sdkerrors.ErrorInvalidSigner, err.Error())
-	}
-
-	config, found := k.GetChainConfig(ctx)
-	if !found {
-		return nil, types.ErrChainConfigNotFound
-	}
+	k.WithContext(ctx)
 
 	var labels []metrics.Label
 	if msg.To() == nil {
@@ -46,62 +31,22 @@ func (k *Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*t
 	} else {
 		labels = []metrics.Label{
 			telemetry.NewLabel("execution", "call"),
-			// add label to the called recipient address (contract or account)
-			telemetry.NewLabel("to", msg.Data.To),
+			telemetry.NewLabel("to", msg.Data.To), // recipient address (contract or account)
 		}
 	}
 
-	sender := ethMsg.From()
+	sender := msg.From
+	tx := msg.AsTransaction()
 
-	txHash := tmtypes.Tx(ctx.TxBytes()).Hash()
-	ethHash := ethcmn.BytesToHash(txHash)
-
-	// Ethereum formatted tx hash
-	etherumTxHash := msg.AsTransaction().Hash()
-
-	st := &types.StateTransition{
-		Message:  ethMsg,
-		Csdb:     k.CommitStateDB.WithContext(ctx),
-		ChainID:  msg.ChainID(),
-		TxHash:   &ethHash,
-		Simulate: ctx.IsCheckTx(),
-	}
-
-	// since the txCount is used by the stateDB, and a simulated tx is run only on the node it's submitted to,
-	// then this will cause the txCount/stateDB of the node that ran the simulated tx to be different than the
-	// other nodes, causing a consensus error
-	if !st.Simulate {
-		// Prepare db for logs
-		k.CommitStateDB.Prepare(ethHash, k.headerHash, int(k.GetTxIndexTransient()))
-		k.IncreaseTxIndexTransient()
-	}
-
-	executionResult, err := st.TransitionDb(ctx, config)
+	response, err := k.ApplyTransaction(tx)
 	if err != nil {
-		if errors.Is(err, vm.ErrExecutionReverted) && executionResult != nil {
-			// keep the execution result for revert reason
-			executionResult.Response.Reverted = true
-			return executionResult.Response, nil
-		}
-
 		return nil, err
 	}
 
-	if !st.Simulate {
-		bloom, found := k.GetBlockBloomTransient()
-		if !found {
-			bloom = big.NewInt(0)
-		}
-		// update block bloom filter
-		logsBloom := ethtypes.LogsBloom(executionResult.Logs)
-		bloom = bloom.Or(bloom, new(big.Int).SetBytes(logsBloom))
-		k.SetBlockBloomTransient(bloom)
-	}
-
 	defer func() {
-		if st.Message.Value().IsInt64() {
+		if tx.Value().IsInt64() {
 			telemetry.SetGauge(
-				float32(st.Message.Value().Int64()),
+				float32(tx.Value().Int64()),
 				"tx", "msg", "ethereum_tx",
 			)
 		}
@@ -114,9 +59,15 @@ func (k *Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*t
 	}()
 
 	attrs := []sdk.Attribute{
-		sdk.NewAttribute(sdk.AttributeKeyAmount, st.Message.Value().String()),
-		sdk.NewAttribute(types.AttributeKeyTxHash, ethcmn.BytesToHash(txHash).Hex()),
-		sdk.NewAttribute(types.AttributeKeyEthereumTxHash, etherumTxHash.Hex()),
+		sdk.NewAttribute(sdk.AttributeKeyAmount, tx.Value().String()),
+		// add event for ethereum transaction hash format
+		sdk.NewAttribute(types.AttributeKeyEthereumTxHash, response.Hash),
+	}
+
+	if len(ctx.TxBytes()) > 0 {
+		// add event for tendermint transaction hash format
+		hash := tmbytes.HexBytes(tmtypes.Tx(ctx.TxBytes()).Hash())
+		attrs = append(attrs, sdk.NewAttribute(types.AttributeKeyTxHash, hash.String()))
 	}
 
 	if len(msg.Data.To) > 0 {
@@ -132,10 +83,9 @@ func (k *Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*t
 		sdk.NewEvent(
 			sdk.EventTypeMessage,
 			sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
-			sdk.NewAttribute(sdk.AttributeKeySender, sender.String()),
+			sdk.NewAttribute(sdk.AttributeKeySender, sender),
 		),
 	})
 
-	executionResult.Response.Hash = etherumTxHash.Hex()
-	return executionResult.Response, nil
+	return response, nil
 }

x/evm/keeper/state_transition.go

@@ -18,6 +18,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
+	ethtypes "github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/params"
 )
@@ -91,7 +92,7 @@ func (k Keeper) GetHashFn() vm.GetHashFunc {
 	}
 }
 
-// TransitionDb runs and attempts to perform a state transition with the given transaction (i.e Message), that will
+// ApplyTransaction runs and attempts to perform a state transition with the given transaction (i.e Message), that will
 // only be persisted to the underlying KVStore if the transaction does not error.
 //
 // Gas tracking
@@ -108,23 +109,39 @@ func (k Keeper) GetHashFn() vm.GetHashFunc {
 // returning.
 //
 // For relevant discussion see: https://github.com/cosmos/cosmos-sdk/discussions/9072
-func (k *Keeper) TransitionDb(msg core.Message) (*types.ExecutionResult, error) {
+func (k *Keeper) ApplyTransaction(tx *ethtypes.Transaction) (*types.MsgEthereumTxResponse, error) {
 	defer telemetry.ModuleMeasureSince(types.ModuleName, time.Now(), types.MetricKeyTransitionDB)
 
-	cfg, found := k.GetChainConfig(k.ctx)
+	gasMeter := k.ctx.GasMeter() // tx gas meter
+	infCtx := k.ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
+
+	cfg, found := k.GetChainConfig(infCtx)
 	if !found {
 		return nil, types.ErrChainConfigNotFound
 	}
+	ethCfg := cfg.EthereumConfig(k.eip155ChainID)
 
-	evm := k.NewEVM(msg, cfg.EthereumConfig(k.eip155ChainID))
-
-	// create an ethereum StateTransition instance and run TransitionDb
-	result, err := k.ApplyMessage(evm, msg)
+	msg, err := tx.AsMessage(ethtypes.MakeSigner(ethCfg, big.NewInt(k.ctx.BlockHeight())))
 	if err != nil {
 		return nil, err
 	}
 
-	return result, nil
+	evm := k.NewEVM(msg, ethCfg)
+
+	k.IncreaseTxIndexTransient()
+
+	k.WithContext(k.ctx.WithGasMeter(gasMeter))
+	// create an ethereum StateTransition instance and run TransitionDb
+	res, err := k.ApplyMessage(evm, msg, ethCfg)
+	if err != nil {
+		return nil, err
+	}
+
+	txHash := tx.Hash()
+	res.Hash = txHash.Hex()
+	res.Logs = types.NewLogsFromEth(k.GetTxLogs(txHash))
+
+	return res, nil
 }
 
 // Gas consumption notes (write doc from this)
@@ -143,10 +160,10 @@ func (k *Keeper) TransitionDb(msg core.Message) (*types.ExecutionResult, error)
 // TODO: (@fedekunze) currently we consume the entire gas limit in the ante handler, so if a transaction fails
 // the amount spent will be grater than the gas spent in an Ethereum tx (i.e here the leftover gas won't be refunded).
 
-func (k *Keeper) ApplyMessage(evm *vm.EVM, msg core.Message) (*types.ExecutionResult, error) {
+func (k *Keeper) ApplyMessage(evm *vm.EVM, msg core.Message, cfg *params.ChainConfig) (*types.MsgEthereumTxResponse, error) {
 	var (
-		ret        []byte // return bytes from evm execution
-		vmErr, err error  // vm errors do not effect consensus and are therefore not assigned to err
+		ret   []byte // return bytes from evm execution
+		vmErr error  // vm errors do not effect consensus and are therefore not assigned to err
 	)
 
 	sender := vm.AccountRef(msg.From())
@@ -166,7 +183,7 @@ func (k *Keeper) ApplyMessage(evm *vm.EVM, msg core.Message) (*types.ExecutionRe
 
 	// ensure gas is consistent during CheckTx
 	if k.ctx.IsCheckTx() {
-		if err := k.checkGasConsumption(msg, gasConsumed, contractCreation); err != nil {
+		if err := k.CheckGasConsumption(msg, cfg, gasConsumed, contractCreation); err != nil {
 			return nil, err
 		}
 	}
@@ -178,8 +195,7 @@ func (k *Keeper) ApplyMessage(evm *vm.EVM, msg core.Message) (*types.ExecutionRe
 	}
 
 	// refund gas prior to handling the vm error in order to set the updated gas meter
-	gasConsumed, leftoverGas, err = k.refundGas(msg, leftoverGas)
-	if err != nil {
+	if err := k.RefundGas(msg, leftoverGas); err != nil {
 		return nil, err
 	}
 
@@ -193,26 +209,17 @@ func (k *Keeper) ApplyMessage(evm *vm.EVM, msg core.Message) (*types.ExecutionRe
 		return nil, sdkerrors.Wrap(types.ErrVMExecution, vmErr.Error())
 	}
 
-	return &types.ExecutionResult{
-		Response: &types.MsgEthereumTxResponse{
-			Ret: ret,
-		},
-		GasInfo: types.GasInfo{
-			GasLimit:    k.ctx.GasMeter().Limit(),
-			GasConsumed: gasConsumed,
-			GasRefunded: leftoverGas,
-		},
+	return &types.MsgEthereumTxResponse{
+		Ret:      ret,
+		Reverted: false,
 	}, nil
 }
 
-// checkGasConsumption verifies that the amount of gas consumed so far matches the intrinsic gas value.
-func (k *Keeper) checkGasConsumption(msg core.Message, gasConsumed uint64, isContractCreation bool) error {
-	cfg, _ := k.GetChainConfig(k.ctx)
-	ethCfg := cfg.EthereumConfig(k.eip155ChainID)
-
+// CheckGasConsumption verifies that the amount of gas consumed so far matches the intrinsic gas value.
+func (k *Keeper) CheckGasConsumption(msg core.Message, cfg *params.ChainConfig, gasConsumed uint64, isContractCreation bool) error {
 	height := big.NewInt(k.ctx.BlockHeight())
-	homestead := ethCfg.IsHomestead(height)
-	istanbul := ethCfg.IsIstanbul(height)
+	homestead := cfg.IsHomestead(height)
+	istanbul := cfg.IsIstanbul(height)
 
 	intrinsicGas, err := core.IntrinsicGas(msg.Data(), msg.AccessList(), isContractCreation, homestead, istanbul)
 	if err != nil {
@@ -227,11 +234,11 @@ func (k *Keeper) checkGasConsumption(msg core.Message, gasConsumed uint64, isCon
 	return nil
 }
 
-// refundGas transfers the leftover gas to the sender of the message, caped to half of the total gas
+// RefundGas transfers the leftover gas to the sender of the message, caped to half of the total gas
 // consumed in the transaction. Additionally, the function sets the total gas consumed to the value
 // returned by the EVM execution, thus ignoring the previous intrinsic gas inconsumed during in the
 // AnteHandler.
-func (k *Keeper) refundGas(msg core.Message, leftoverGas uint64) (consumed, leftover uint64, err error) {
+func (k *Keeper) RefundGas(msg core.Message, leftoverGas uint64) error {
 	gasConsumed := msg.Gas() - leftoverGas
 
 	// Apply refund counter, capped to half of the used gas.
@@ -246,18 +253,21 @@ func (k *Keeper) refundGas(msg core.Message, leftoverGas uint64) (consumed, left
 	// Return EVM tokens for remaining gas, exchanged at the original rate.
 	remaining := new(big.Int).Mul(new(big.Int).SetUint64(leftoverGas), msg.GasPrice())
 
+	// ignore gas consumption
+	infCtx := k.ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
+
 	switch remaining.Sign() {
 	case -1:
 		// negative refund errors
-		return 0, 0, fmt.Errorf("refunded amount value cannot be negative %d", remaining.Int64())
+		return fmt.Errorf("refunded amount value cannot be negative %d", remaining.Int64())
 	case 1:
 		// positive amount refund
-		params := k.GetParams(k.ctx)
+		params := k.GetParams(infCtx)
 		refundedCoins := sdk.Coins{sdk.NewCoin(params.EvmDenom, sdk.NewIntFromBigInt(remaining))}
 
 		// refund to sender from the fee collector module account, which is the escrow account in charge of collecting tx fees
-		if err := k.bankKeeper.SendCoinsFromModuleToAccount(k.ctx, authtypes.FeeCollectorName, msg.From().Bytes(), refundedCoins); err != nil {
-			return 0, 0, sdkerrors.Wrapf(sdkerrors.ErrInsufficientFunds, "fee collector account failed to refund fees: %s", err.Error())
+		if err := k.bankKeeper.SendCoinsFromModuleToAccount(infCtx, authtypes.FeeCollectorName, msg.From().Bytes(), refundedCoins); err != nil {
+			return sdkerrors.Wrapf(sdkerrors.ErrInsufficientFunds, "fee collector account failed to refund fees: %s", err.Error())
 		}
 	default:
 		// no refund, consume gas and update the tx gas meter
@@ -270,5 +280,5 @@ func (k *Keeper) refundGas(msg core.Message, leftoverGas uint64) (consumed, left
 	gasMeter.ConsumeGas(gasConsumed, "update gas consumption after refund")
 	k.WithContext(k.ctx.WithGasMeter(gasMeter))
 
-	return gasConsumed, leftoverGas, nil
+	return nil
 }

x/evm/module.go

@@ -88,16 +88,14 @@ type AppModule struct {
 	AppModuleBasic
 	keeper *keeper.Keeper
 	ak     types.AccountKeeper
-	bk     types.BankKeeper
 }
 
 // NewAppModule creates a new AppModule object
-func NewAppModule(k *keeper.Keeper, ak types.AccountKeeper, bk types.BankKeeper) AppModule {
+func NewAppModule(k *keeper.Keeper, ak types.AccountKeeper) AppModule {
 	return AppModule{
 		AppModuleBasic: AppModuleBasic{},
 		keeper:         k,
 		ak:             ak,
-		bk:             bk,
 	}
 }
 
@@ -151,7 +149,7 @@ func (am AppModule) InitGenesis(ctx sdk.Context, cdc codec.JSONMarshaler, data j
 	var genesisState types.GenesisState
 
 	cdc.MustUnmarshalJSON(data, &genesisState)
-	InitGenesis(ctx, am.keeper, am.ak, am.bk, genesisState)
+	InitGenesis(ctx, am.keeper, am.ak, genesisState)
 	return []abci.ValidatorUpdate{}
 }
 

x/evm/types/journal.go

@@ -1,348 +0,0 @@
-package types
-
-import (
-	sdk "github.com/cosmos/cosmos-sdk/types"
-
-	ethcmn "github.com/ethereum/go-ethereum/common"
-)
-
-var ripemd = ethcmn.HexToAddress("0000000000000000000000000000000000000003")
-
-// journalEntry is a modification entry in the state change journal that can be
-// reverted on demand.
-type journalEntry interface {
-	// revert undoes the changes introduced by this journal entry.
-	revert(*CommitStateDB)
-
-	// dirtied returns the Ethereum address modified by this journal entry.
-	dirtied() *ethcmn.Address
-}
-
-type revision struct {
-	id           int
-	journalIndex int
-}
-
-// journal contains the list of state modifications applied since the last state
-// commit. These are tracked to be able to be reverted in case of an execution
-// exception or revertal request.
-type journal struct {
-	entries               []journalEntry         // Current changes tracked by the journal
-	dirties               []dirty                // Dirty accounts and the number of changes
-	addressToJournalIndex map[ethcmn.Address]int // map from address to the index of the dirties slice
-}
-
-// dirty represents a single key value pair of the journal dirties, where the
-// key correspons to the account address and the value to the number of
-// changes for that account.
-type dirty struct {
-	address ethcmn.Address
-	changes int
-}
-
-// newJournal create a new initialized journal.
-func newJournal() *journal {
-	return &journal{
-		dirties:               []dirty{},
-		addressToJournalIndex: make(map[ethcmn.Address]int),
-	}
-}
-
-// append inserts a new modification entry to the end of the change journal.
-func (j *journal) append(entry journalEntry) {
-	j.entries = append(j.entries, entry)
-	if addr := entry.dirtied(); addr != nil {
-		j.addDirty(*addr)
-	}
-}
-
-// revert undoes a batch of journalled modifications along with any reverted
-// dirty handling too.
-func (j *journal) revert(statedb *CommitStateDB, snapshot int) {
-	for i := len(j.entries) - 1; i >= snapshot; i-- {
-		// Undo the changes made by the operation
-		j.entries[i].revert(statedb)
-
-		// Drop any dirty tracking induced by the change
-		if addr := j.entries[i].dirtied(); addr != nil {
-			j.substractDirty(*addr)
-			if j.getDirty(*addr) == 0 {
-				j.deleteDirty(*addr)
-			}
-		}
-	}
-	j.entries = j.entries[:snapshot]
-}
-
-// dirty explicitly sets an address to dirty, even if the change entries would
-// otherwise suggest it as clean. This method is an ugly hack to handle the RIPEMD
-// precompile consensus exception.
-func (j *journal) dirty(addr ethcmn.Address) {
-	j.addDirty(addr)
-}
-
-// length returns the current number of entries in the journal.
-func (j *journal) length() int {
-	return len(j.entries)
-}
-
-// getDirty returns the dirty count for a given address. If the address is not
-// found it returns 0.
-func (j *journal) getDirty(addr ethcmn.Address) int {
-	idx, found := j.addressToJournalIndex[addr]
-	if !found {
-		return 0
-	}
-
-	return j.dirties[idx].changes
-}
-
-// addDirty adds 1 to the dirty count of an address. If the dirty entry is not
-// found it creates it.
-func (j *journal) addDirty(addr ethcmn.Address) {
-	idx, found := j.addressToJournalIndex[addr]
-	if !found {
-		j.dirties = append(j.dirties, dirty{address: addr, changes: 0})
-		idx = len(j.dirties) - 1
-		j.addressToJournalIndex[addr] = idx
-	}
-
-	j.dirties[idx].changes++
-}
-
-// substractDirty subtracts 1 to the dirty count of an address. It performs a
-// no-op if the address is not found.
-func (j *journal) substractDirty(addr ethcmn.Address) {
-	idx, found := j.addressToJournalIndex[addr]
-	if !found {
-		return
-	}
-
-	if j.dirties[idx].changes == 0 {
-		return
-	}
-	j.dirties[idx].changes--
-}
-
-// deleteDirty deletes a dirty entry from the jounal's dirties slice. If the
-// entry is not found it performs a no-op.
-func (j *journal) deleteDirty(addr ethcmn.Address) {
-	idx, found := j.addressToJournalIndex[addr]
-	if !found {
-		return
-	}
-
-	j.dirties = append(j.dirties[:idx], j.dirties[idx+1:]...)
-	delete(j.addressToJournalIndex, addr)
-}
-
-type (
-	// Changes to the account trie.
-	createObjectChange struct {
-		account *ethcmn.Address
-	}
-
-	resetObjectChange struct {
-		prev *stateObject
-	}
-
-	suicideChange struct {
-		account     *ethcmn.Address
-		prev        bool // whether account had already suicided
-		prevBalance sdk.Int
-	}
-
-	// Changes to individual accounts.
-	balanceChange struct {
-		account *ethcmn.Address
-		prev    sdk.Int
-	}
-
-	nonceChange struct {
-		account *ethcmn.Address
-		prev    uint64
-	}
-
-	storageChange struct {
-		account        *ethcmn.Address
-		key, prevValue ethcmn.Hash
-	}
-
-	codeChange struct {
-		account            *ethcmn.Address
-		prevCode, prevHash []byte
-	}
-
-	// Changes to other state values.
-	refundChange struct {
-		prev uint64
-	}
-
-	addLogChange struct {
-		txhash ethcmn.Hash
-	}
-
-	addPreimageChange struct {
-		hash ethcmn.Hash
-	}
-
-	touchChange struct {
-		account *ethcmn.Address
-		// prev      bool
-		// prevDirty bool
-	}
-)
-
-func (ch createObjectChange) revert(s *CommitStateDB) {
-	delete(s.stateObjectsDirty, *ch.account)
-
-	idx, exists := s.addressToObjectIndex[*ch.account]
-	if !exists {
-		// perform no-op
-		return
-	}
-
-	// remove from the slice
-	delete(s.addressToObjectIndex, *ch.account)
-
-	// if the slice contains one element, delete it
-	if len(s.stateObjects) == 1 {
-		s.stateObjects = []stateEntry{}
-		return
-	}
-
-	// move the elements one position left on the array
-	for i := idx + 1; i < len(s.stateObjects); i++ {
-		s.stateObjects[i-1] = s.stateObjects[i]
-		// the new index is i - 1
-		s.addressToObjectIndex[s.stateObjects[i].address] = i - 1
-	}
-
-	//  finally, delete the last element of the slice to account for the removed object
-	s.stateObjects = s.stateObjects[:len(s.stateObjects)-1]
-}
-
-func (ch createObjectChange) dirtied() *ethcmn.Address {
-	return ch.account
-}
-
-func (ch resetObjectChange) revert(s *CommitStateDB) {
-	s.setStateObject(ch.prev)
-}
-
-func (ch resetObjectChange) dirtied() *ethcmn.Address {
-	return nil
-}
-
-func (ch suicideChange) revert(s *CommitStateDB) {
-	so := s.getStateObject(*ch.account)
-	if so != nil {
-		so.suicided = ch.prev
-		so.setBalance(ch.prevBalance)
-	}
-}
-
-func (ch suicideChange) dirtied() *ethcmn.Address {
-	return ch.account
-}
-
-func (ch touchChange) revert(s *CommitStateDB) {
-}
-
-func (ch touchChange) dirtied() *ethcmn.Address {
-	return ch.account
-}
-
-func (ch balanceChange) revert(s *CommitStateDB) {
-	s.getStateObject(*ch.account).setBalance(ch.prev)
-}
-
-func (ch balanceChange) dirtied() *ethcmn.Address {
-	return ch.account
-}
-
-func (ch nonceChange) revert(s *CommitStateDB) {
-	s.getStateObject(*ch.account).setNonce(ch.prev)
-}
-
-func (ch nonceChange) dirtied() *ethcmn.Address {
-	return ch.account
-}
-
-func (ch codeChange) revert(s *CommitStateDB) {
-	s.getStateObject(*ch.account).setCode(ethcmn.BytesToHash(ch.prevHash), ch.prevCode)
-}
-
-func (ch codeChange) dirtied() *ethcmn.Address {
-	return ch.account
-}
-
-func (ch storageChange) revert(s *CommitStateDB) {
-	s.getStateObject(*ch.account).setState(ch.key, ch.prevValue)
-}
-
-func (ch storageChange) dirtied() *ethcmn.Address {
-	return ch.account
-}
-
-func (ch refundChange) revert(s *CommitStateDB) {
-	s.refund = ch.prev
-}
-
-func (ch refundChange) dirtied() *ethcmn.Address {
-	return nil
-}
-
-func (ch addLogChange) revert(s *CommitStateDB) {
-	logs, err := s.GetLogs(ch.txhash)
-	if err != nil {
-		// panic on unmarshal error
-		panic(err)
-	}
-
-	// delete logs if entry is empty or has only one item
-	if len(logs) <= 1 {
-		s.DeleteLogs(ch.txhash)
-	} else if err := s.SetLogs(ch.txhash, logs[:len(logs)-1]); err != nil {
-		// panic on marshal error
-		panic(err)
-	}
-
-	s.logSize--
-}
-
-func (ch addLogChange) dirtied() *ethcmn.Address {
-	return nil
-}
-
-func (ch addPreimageChange) revert(s *CommitStateDB) {
-	idx, exists := s.hashToPreimageIndex[ch.hash]
-	if !exists {
-		// perform no-op
-		return
-	}
-
-	// remove from the slice
-	delete(s.hashToPreimageIndex, ch.hash)
-
-	// if the slice contains one element, delete it
-	if len(s.preimages) == 1 {
-		s.preimages = []preimageEntry{}
-		return
-	}
-
-	// move the elements one position left on the array
-	for i := idx + 1; i < len(s.preimages); i++ {
-		s.preimages[i-1] = s.preimages[i]
-		// the new index is i - 1
-		s.hashToPreimageIndex[s.preimages[i].hash] = i - 1
-	}
-
-	//  finally, delete the last element
-
-	s.preimages = s.preimages[:len(s.preimages)-1]
-}
-
-func (ch addPreimageChange) dirtied() *ethcmn.Address {
-	return nil
-}

x/evm/types/journal_test.go

@@ -1,354 +0,0 @@
-package types
-
-import (
-	"fmt"
-	"os"
-	"testing"
-
-	"github.com/cosmos/ethermint/crypto/ethsecp256k1"
-	enccodec "github.com/cosmos/ethermint/encoding/codec"
-	ethermint "github.com/cosmos/ethermint/types"
-
-	"github.com/stretchr/testify/suite"
-
-	tmlog "github.com/tendermint/tendermint/libs/log"
-	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
-	tmdb "github.com/tendermint/tm-db"
-
-	"github.com/cosmos/cosmos-sdk/store"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	authkeeper "github.com/cosmos/cosmos-sdk/x/auth/keeper"
-	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
-	bankkeeper "github.com/cosmos/cosmos-sdk/x/bank/keeper"
-	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
-	paramkeeper "github.com/cosmos/cosmos-sdk/x/params/keeper"
-	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
-
-	ethcmn "github.com/ethereum/go-ethereum/common"
-	ethtypes "github.com/ethereum/go-ethereum/core/types"
-	ethcrypto "github.com/ethereum/go-ethereum/crypto"
-
-	"github.com/cosmos/cosmos-sdk/codec"
-	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
-)
-
-func newTestCodec() (codec.BinaryMarshaler, *codec.LegacyAmino) {
-	interfaceRegistry := codectypes.NewInterfaceRegistry()
-	cdc := codec.NewProtoCodec(interfaceRegistry)
-	amino := codec.NewLegacyAmino()
-
-	sdk.RegisterLegacyAminoCodec(amino)
-
-	enccodec.RegisterInterfaces(interfaceRegistry)
-
-	return cdc, amino
-}
-
-type JournalTestSuite struct {
-	suite.Suite
-
-	address ethcmn.Address
-	journal *journal
-	ctx     sdk.Context
-	stateDB *CommitStateDB
-}
-
-func (suite *JournalTestSuite) SetupTest() {
-	suite.setup()
-
-	privkey, err := ethsecp256k1.GenerateKey()
-	suite.Require().NoError(err)
-
-	suite.address = ethcmn.BytesToAddress(privkey.PubKey().Address().Bytes())
-	suite.journal = newJournal()
-
-	balance := ethermint.NewPhotonCoin(sdk.NewInt(100))
-	acc := &ethermint.EthAccount{
-		BaseAccount: authtypes.NewBaseAccount(sdk.AccAddress(suite.address.Bytes()), nil, 0, 0),
-		CodeHash:    ethcrypto.Keccak256(nil),
-	}
-
-	suite.stateDB.accountKeeper.SetAccount(suite.ctx, acc)
-	suite.stateDB.bankKeeper.SetBalance(suite.ctx, sdk.AccAddress(suite.address.Bytes()), balance)
-	suite.stateDB.SetLogs(ethcmn.BytesToHash([]byte("txhash")), []*ethtypes.Log{
-		{
-			Address:     suite.address,
-			Topics:      []ethcmn.Hash{ethcmn.BytesToHash([]byte("topic_0"))},
-			Data:        []byte("data_0"),
-			BlockNumber: 1,
-			TxHash:      ethcmn.BytesToHash([]byte("tx_hash")),
-			TxIndex:     1,
-			BlockHash:   ethcmn.BytesToHash([]byte("block_hash")),
-			Index:       1,
-			Removed:     false,
-		},
-		{
-			Address:     suite.address,
-			Topics:      []ethcmn.Hash{ethcmn.BytesToHash([]byte("topic_1"))},
-			Data:        []byte("data_1"),
-			BlockNumber: 10,
-			TxHash:      ethcmn.BytesToHash([]byte("tx_hash")),
-			TxIndex:     0,
-			BlockHash:   ethcmn.BytesToHash([]byte("block_hash")),
-			Index:       0,
-			Removed:     false,
-		},
-	})
-}
-
-// setup performs a manual setup of the GoLevelDB and mounts the required IAVL stores. We use the manual
-// setup here instead of the Ethermint app test setup because the journal methods are private and using
-// the latter would result in a cycle dependency. We also want to avoid declaring the journal methods public
-// to maintain consistency with the Geth implementation.
-func (suite *JournalTestSuite) setup() {
-	authKey := sdk.NewKVStoreKey(authtypes.StoreKey)
-	paramsKey := sdk.NewKVStoreKey(paramtypes.StoreKey)
-	paramsTKey := sdk.NewTransientStoreKey(paramtypes.TStoreKey)
-	tKey := sdk.NewTransientStoreKey(TransientKey)
-	bankKey := sdk.NewKVStoreKey(banktypes.StoreKey)
-	storeKey := sdk.NewKVStoreKey(StoreKey)
-
-	db, err := tmdb.NewDB("state", tmdb.GoLevelDBBackend, "temp")
-	suite.Require().NoError(err)
-
-	defer func() {
-		os.RemoveAll("temp")
-	}()
-
-	cms := store.NewCommitMultiStore(db)
-	cms.MountStoreWithDB(authKey, sdk.StoreTypeIAVL, db)
-	cms.MountStoreWithDB(bankKey, sdk.StoreTypeIAVL, db)
-	cms.MountStoreWithDB(paramsKey, sdk.StoreTypeIAVL, db)
-	cms.MountStoreWithDB(storeKey, sdk.StoreTypeIAVL, db)
-	cms.MountStoreWithDB(paramsTKey, sdk.StoreTypeTransient, db)
-	cms.MountStoreWithDB(tKey, sdk.StoreTypeTransient, db)
-
-	err = cms.LoadLatestVersion()
-	suite.Require().NoError(err)
-
-	cdc, amino := newTestCodec()
-
-	paramsKeeper := paramkeeper.NewKeeper(cdc, amino, paramsKey, paramsTKey)
-
-	authSubspace := paramsKeeper.Subspace(authtypes.ModuleName)
-	bankSubspace := paramsKeeper.Subspace(banktypes.ModuleName)
-	evmSubspace := paramsKeeper.Subspace(ModuleName).WithKeyTable(ParamKeyTable())
-
-	ak := authkeeper.NewAccountKeeper(cdc, authKey, authSubspace, ethermint.ProtoAccount, nil)
-	bk := bankkeeper.NewBaseKeeper(cdc, bankKey, ak, bankSubspace, nil)
-	suite.ctx = sdk.NewContext(cms, tmproto.Header{ChainID: "ethermint-8"}, false, tmlog.NewNopLogger())
-	suite.stateDB = NewCommitStateDB(suite.ctx, storeKey, tKey, evmSubspace, ak, bk).WithContext(suite.ctx)
-	suite.stateDB.SetParams(DefaultParams())
-}
-
-func TestJournalTestSuite(t *testing.T) {
-	suite.Run(t, new(JournalTestSuite))
-}
-
-func (suite *JournalTestSuite) TestJournal_append_revert() {
-	testCases := []struct {
-		name  string
-		entry journalEntry
-	}{
-		{
-			"createObjectChange",
-			createObjectChange{
-				account: &suite.address,
-			},
-		},
-		{
-			"resetObjectChange",
-			resetObjectChange{
-				prev: &stateObject{
-					address: suite.address,
-					balance: sdk.OneInt(),
-				},
-			},
-		},
-		{
-			"suicideChange",
-			suicideChange{
-				account:     &suite.address,
-				prev:        false,
-				prevBalance: sdk.OneInt(),
-			},
-		},
-		{
-			"balanceChange",
-			balanceChange{
-				account: &suite.address,
-				prev:    sdk.OneInt(),
-			},
-		},
-		{
-			"nonceChange",
-			nonceChange{
-				account: &suite.address,
-				prev:    1,
-			},
-		},
-		{
-			"storageChange",
-			storageChange{
-				account:   &suite.address,
-				key:       ethcmn.BytesToHash([]byte("key")),
-				prevValue: ethcmn.BytesToHash([]byte("value")),
-			},
-		},
-		{
-			"codeChange",
-			codeChange{
-				account:  &suite.address,
-				prevCode: []byte("code"),
-				prevHash: []byte("hash"),
-			},
-		},
-		{
-			"touchChange",
-			touchChange{
-				account: &suite.address,
-			},
-		},
-		{
-			"refundChange",
-			refundChange{
-				prev: 1,
-			},
-		},
-		{
-			"addPreimageChange",
-			addPreimageChange{
-				hash: ethcmn.BytesToHash([]byte("hash")),
-			},
-		},
-		{
-			"addLogChange",
-			addLogChange{
-				txhash: ethcmn.BytesToHash([]byte("hash")),
-			},
-		},
-		{
-			"addLogChange - 2 logs",
-			addLogChange{
-				txhash: ethcmn.BytesToHash([]byte("txhash")),
-			},
-		},
-		{
-			"accessListAddAccountChange",
-			accessListAddAccountChange{
-				address: &suite.address,
-			},
-		},
-	}
-	var dirtyCount int
-	for i, tc := range testCases {
-		suite.journal.append(tc.entry)
-		suite.Require().Equal(suite.journal.length(), i+1, tc.name)
-		if tc.entry.dirtied() != nil {
-			dirtyCount++
-
-			suite.Require().Equal(dirtyCount, suite.journal.getDirty(suite.address), tc.name)
-		}
-	}
-
-	// revert to the initial journal state
-	suite.journal.revert(suite.stateDB, 0)
-
-	// verify the dirty entry has been deleted
-	idx, ok := suite.journal.addressToJournalIndex[suite.address]
-	suite.Require().False(ok)
-	suite.Require().Zero(idx)
-}
-
-func (suite *JournalTestSuite) TestJournal_preimage_revert() {
-	suite.stateDB.preimages = []preimageEntry{
-		{
-			hash:     ethcmn.BytesToHash([]byte("hash")),
-			preimage: []byte("preimage0"),
-		},
-		{
-			hash:     ethcmn.BytesToHash([]byte("hash1")),
-			preimage: []byte("preimage1"),
-		},
-		{
-			hash:     ethcmn.BytesToHash([]byte("hash2")),
-			preimage: []byte("preimage2"),
-		},
-	}
-
-	for i, preimage := range suite.stateDB.preimages {
-		suite.stateDB.hashToPreimageIndex[preimage.hash] = i
-	}
-
-	change := addPreimageChange{
-		hash: ethcmn.BytesToHash([]byte("hash")),
-	}
-
-	// delete first entry
-	change.revert(suite.stateDB)
-	suite.Require().Len(suite.stateDB.preimages, 2)
-	suite.Require().Equal(len(suite.stateDB.preimages), len(suite.stateDB.hashToPreimageIndex))
-
-	for i, entry := range suite.stateDB.preimages {
-		suite.Require().Equal(fmt.Sprintf("preimage%d", i+1), string(entry.preimage), entry.hash.String())
-		idx, found := suite.stateDB.hashToPreimageIndex[entry.hash]
-		suite.Require().True(found)
-		suite.Require().Equal(i, idx)
-	}
-}
-
-func (suite *JournalTestSuite) TestJournal_createObjectChange_revert() {
-	addr := ethcmn.BytesToAddress([]byte("addr"))
-
-	suite.stateDB.stateObjects = []stateEntry{
-		{
-			address: addr,
-			stateObject: &stateObject{
-				address: addr,
-			},
-		},
-		{
-			address: ethcmn.BytesToAddress([]byte("addr1")),
-			stateObject: &stateObject{
-				address: ethcmn.BytesToAddress([]byte("addr1")),
-			},
-		},
-		{
-			address: ethcmn.BytesToAddress([]byte("addr2")),
-			stateObject: &stateObject{
-				address: ethcmn.BytesToAddress([]byte("addr2")),
-			},
-		},
-	}
-
-	for i, so := range suite.stateDB.stateObjects {
-		suite.stateDB.addressToObjectIndex[so.address] = i
-	}
-
-	change := createObjectChange{
-		account: &addr,
-	}
-
-	// delete first entry
-	change.revert(suite.stateDB)
-	suite.Require().Len(suite.stateDB.stateObjects, 2)
-	suite.Require().Equal(len(suite.stateDB.stateObjects), len(suite.stateDB.addressToObjectIndex))
-
-	for i, entry := range suite.stateDB.stateObjects {
-		suite.Require().Equal(ethcmn.BytesToAddress([]byte(fmt.Sprintf("addr%d", i+1))).String(), entry.address.String())
-		idx, found := suite.stateDB.addressToObjectIndex[entry.address]
-		suite.Require().True(found)
-		suite.Require().Equal(i, idx)
-	}
-}
-
-func (suite *JournalTestSuite) TestJournal_dirty() {
-	// dirty entry hasn't been set
-	idx, ok := suite.journal.addressToJournalIndex[suite.address]
-	suite.Require().False(ok)
-	suite.Require().Zero(idx)
-
-	// update dirty count
-	suite.journal.dirty(suite.address)
-	suite.Require().Equal(1, suite.journal.getDirty(suite.address))
-}

x/evm/types/logs.go

@@ -89,7 +89,7 @@ func (log *Log) ToEthereum() *ethtypes.Log {
 }
 
 func NewLogsFromEth(ethlogs []*ethtypes.Log) []*Log {
-	var logs []*Log
+	var logs []*Log // nolint: prealloc
 	for _, ethlog := range ethlogs {
 		logs = append(logs, NewLogFromEth(ethlog))
 	}

x/evm/types/msg.go

@@ -2,7 +2,6 @@ package types
 
 import (
 	"fmt"
-	"io"
 	"math/big"
 
 	"github.com/cosmos/cosmos-sdk/crypto/keyring"
@@ -14,7 +13,6 @@ import (
 	ethcmn "github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core"
 	ethtypes "github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/rlp"
 )
 
 var (
@@ -191,48 +189,6 @@ func (msg MsgEthereumTx) GetSignBytes() []byte {
 	panic("must use 'RLPSignBytes' with a chain ID to get the valid bytes to sign")
 }
 
-// RLPSignBytes returns the RLP hash of an Ethereum transaction message with a
-// given chainID used for signing.
-func (msg MsgEthereumTx) RLPSignBytes(chainID *big.Int) ethcmn.Hash {
-	if msg.Data.ChainID != nil {
-		chainID = new(big.Int).SetBytes(msg.Data.ChainID)
-	}
-
-	var accessList *ethtypes.AccessList
-	if msg.Data.Accesses != nil {
-		accessList = msg.Data.Accesses.ToEthAccessList()
-	}
-
-	return rlpHash([]interface{}{
-		chainID,
-		msg.Data.Nonce,
-		new(big.Int).SetBytes(msg.Data.GasPrice),
-		msg.Data.GasLimit,
-		msg.To(),
-		new(big.Int).SetBytes(msg.Data.Amount),
-		new(big.Int).SetBytes(msg.Data.Input),
-		accessList,
-	})
-}
-
-// EncodeRLP implements the rlp.Encoder interface.
-func (msg *MsgEthereumTx) EncodeRLP(w io.Writer) error {
-	tx := msg.AsTransaction()
-	return tx.EncodeRLP(w)
-}
-
-// DecodeRLP implements the rlp.Decoder interface.
-func (msg *MsgEthereumTx) DecodeRLP(stream *rlp.Stream) error {
-	tx := &ethtypes.Transaction{}
-	if err := tx.DecodeRLP(stream); err != nil {
-		return err
-	}
-
-	msg.FromEthereumTx(tx)
-
-	return nil
-}
-
 // Sign calculates a secp256k1 ECDSA signature and signs the transaction. It
 // takes a keyring signer and the chainID to sign an Ethereum transaction according to
 // EIP155 standard.

x/evm/types/msg_test.go

@@ -1,7 +1,6 @@
 package types
 
 import (
-	"bytes"
 	"math/big"
 	"testing"
 
@@ -15,7 +14,6 @@ import (
 	ethcmn "github.com/ethereum/go-ethereum/common"
 	ethtypes "github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/rlp"
 )
 
 type MsgsTestSuite struct {
@@ -91,23 +89,6 @@ func (suite *MsgsTestSuite) TestMsgEthereumTx_ValidateBasic() {
 	}
 }
 
-func (suite *MsgsTestSuite) TestMsgEthereumTx_EncodeRLP() {
-	expMsg := NewMsgEthereumTx(suite.chainID, 0, &suite.to, nil, 100000, nil, []byte("test"), nil)
-
-	raw, err := rlp.EncodeToBytes(&expMsg)
-	suite.Require().NoError(err)
-
-	msg := &MsgEthereumTx{}
-	err = rlp.Decode(bytes.NewReader(raw), &msg)
-	suite.Require().NoError(err)
-	suite.Require().Equal(expMsg.Data, msg.Data)
-}
-
-func (suite *MsgsTestSuite) TestMsgEthereumTx_RLPSignBytes() {
-	msg := NewMsgEthereumTx(suite.chainID, 0, &suite.to, nil, 100000, nil, []byte("test"), nil)
-	suite.NotPanics(func() { _ = msg.RLPSignBytes(suite.chainID) })
-}
-
 func (suite *MsgsTestSuite) TestMsgEthereumTx_Sign() {
 	msg := NewMsgEthereumTx(suite.chainID, 0, &suite.to, nil, 100000, nil, []byte("test"), nil)
 

x/evm/types/query.pb.go

@@ -73,8 +73,8 @@ var xxx_messageInfo_QueryAccountRequest proto.InternalMessageInfo
 type QueryAccountResponse struct {
 	// balance is the balance of the EVM denomination.
 	Balance string `protobuf:"bytes,1,opt,name=balance,proto3" json:"balance,omitempty"`
-	// code_hash is the code bytes from the EOA.
-	CodeHash []byte `protobuf:"bytes,2,opt,name=code_hash,json=codeHash,proto3" json:"code_hash,omitempty"`
+	// code hash is the hex-formatted code bytes from the EOA.
+	CodeHash string `protobuf:"bytes,2,opt,name=code_hash,json=codeHash,proto3" json:"code_hash,omitempty"`
 	// nonce is the account's sequence number.
 	Nonce uint64 `protobuf:"varint,3,opt,name=nonce,proto3" json:"nonce,omitempty"`
 }
@@ -119,11 +119,11 @@ func (m *QueryAccountResponse) GetBalance() string {
 	return ""
 }
 
-func (m *QueryAccountResponse) GetCodeHash() []byte {
+func (m *QueryAccountResponse) GetCodeHash() string {
 	if m != nil {
 		return m.CodeHash
 	}
-	return nil
+	return ""
 }
 
 func (m *QueryAccountResponse) GetNonce() uint64 {
@@ -972,72 +972,72 @@ func init() {
 }
 
 var fileDescriptor_8bbc79ec2b6c5cb2 = []byte{
-	// 1028 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x9c, 0x96, 0xcf, 0x6f, 0x1b, 0x45,
-	0x14, 0xc7, 0xbd, 0x8d, 0x63, 0x27, 0x2f, 0x09, 0x2a, 0x83, 0x29, 0x61, 0x8b, 0x1c, 0x6b, 0x51,
-	0x63, 0xe7, 0x47, 0x77, 0x6b, 0x23, 0xf1, 0x4b, 0x48, 0x28, 0xa9, 0x14, 0x2a, 0x51, 0xa1, 0xe2,
-	0xf4, 0xc4, 0xc5, 0x1a, 0xaf, 0x47, 0x6b, 0x2b, 0xeb, 0x1d, 0xd7, 0xb3, 0xb6, 0x12, 0x45, 0xb9,
-	0x70, 0x40, 0x20, 0x71, 0x00, 0x71, 0xa0, 0x42, 0x42, 0xea, 0x95, 0x1b, 0x7f, 0x46, 0x8f, 0x95,
-	0xb8, 0x70, 0x42, 0x28, 0xe1, 0xc0, 0x9f, 0x81, 0x66, 0xe6, 0xad, 0xbd, 0x9b, 0x78, 0xb3, 0x0e,
-	0xb7, 0x9d, 0xf1, 0xfb, 0xf1, 0x79, 0xef, 0xcd, 0x7c, 0xc7, 0x60, 0xb1, 0xb0, 0xcb, 0x86, 0xfd,
-	0x5e, 0x10, 0x3a, 0x6c, 0xdc, 0x77, 0xc6, 0x75, 0xea, 0x0f, 0xba, 0xb4, 0xee, 0x3c, 0x1b, 0xb1,
-	0xe1, 0x89, 0x3d, 0x18, 0xf2, 0x90, 0x93, 0x3b, 0x13, 0x1b, 0x9b, 0x8d, 0xfb, 0x76, 0x64, 0x63,
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-	0xda, 0x54, 0x30, 0x1d, 0xc6, 0x19, 0xd7, 0xdb, 0x2c, 0xa4, 0x75, 0x67, 0x40, 0xbd, 0x5e, 0x40,
-	0xc3, 0x1e, 0x0f, 0xd0, 0xf6, 0x1d, 0x8f, 0x73, 0xcf, 0x67, 0x0e, 0x1d, 0xf4, 0x1c, 0x1a, 0x04,
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-	0xa5, 0xcc, 0xb0, 0xe7, 0xba, 0x7c, 0x14, 0x84, 0x4d, 0xf6, 0x6c, 0xc4, 0x44, 0x48, 0xd6, 0xa1,
-	0x48, 0x3b, 0x9d, 0x21, 0x13, 0x62, 0xdd, 0xa8, 0x18, 0xb5, 0xe5, 0x66, 0xb4, 0xfc, 0x78, 0xe9,
-	0xdb, 0x17, 0x1b, 0xb9, 0x7f, 0x5f, 0x6c, 0xe4, 0x2c, 0x17, 0x4a, 0x49, 0x57, 0x31, 0xe0, 0x81,
-	0x60, 0xd2, 0xb7, 0x4d, 0x7d, 0x1a, 0xb8, 0x2c, 0xf2, 0xc5, 0x25, 0xb9, 0x0b, 0xcb, 0x2e, 0xef,
-	0xb0, 0x56, 0x97, 0x8a, 0xee, 0xfa, 0xad, 0x8a, 0x51, 0x5b, 0x6d, 0x2e, 0xc9, 0x8d, 0x47, 0x54,
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-	0xde, 0x87, 0xdb, 0xd8, 0xef, 0xce, 0x8d, 0x8a, 0xac, 0xc2, 0xeb, 0x31, 0x3f, 0x4c, 0x41, 0x20,
-	0x2f, 0x0f, 0x88, 0xf2, 0x5a, 0x6d, 0xaa, 0x6f, 0xab, 0x01, 0x44, 0x19, 0x3e, 0x3d, 0x7e, 0xcc,
-	0x3d, 0x11, 0xa5, 0x20, 0x90, 0x57, 0xc7, 0x4a, 0xc7, 0x57, 0xdf, 0xb1, 0xe0, 0x07, 0xd8, 0x8f,
-	0xc8, 0x07, 0xc3, 0x3b, 0x90, 0xf7, 0xb9, 0x27, 0xa1, 0x16, 0x6a, 0x2b, 0x8d, 0xbb, 0xf6, 0xec,
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-	0xad, 0x0c, 0x00, 0x00,
+	// 1026 bytes of a gzipped FileDescriptorProto
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+	0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -2579,7 +2579,7 @@ func (m *QueryAccountResponse) Unmarshal(dAtA []byte) error {
 			if wireType != 2 {
 				return fmt.Errorf("proto: wrong wireType = %d for field CodeHash", wireType)
 			}
-			var byteLen int
+			var stringLen uint64
 			for shift := uint(0); ; shift += 7 {
 				if shift >= 64 {
 					return ErrIntOverflowQuery
@@ -2589,25 +2589,23 @@ func (m *QueryAccountResponse) Unmarshal(dAtA []byte) error {
 				}
 				b := dAtA[iNdEx]
 				iNdEx++
-				byteLen |= int(b&0x7F) << shift
+				stringLen |= uint64(b&0x7F) << shift
 				if b < 0x80 {
 					break
 				}
 			}
-			if byteLen < 0 {
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
 				return ErrInvalidLengthQuery
 			}
-			postIndex := iNdEx + byteLen
+			postIndex := iNdEx + intStringLen
 			if postIndex < 0 {
 				return ErrInvalidLengthQuery
 			}
 			if postIndex > l {
 				return io.ErrUnexpectedEOF
 			}
-			m.CodeHash = append(m.CodeHash[:0], dAtA[iNdEx:postIndex]...)
-			if m.CodeHash == nil {
-				m.CodeHash = []byte{}
-			}
+			m.CodeHash = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
 		case 3:
 			if wireType != 0 {

x/evm/types/state_object.go

@@ -1,457 +0,0 @@
-package types
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-	"math/big"
-
-	"github.com/cosmos/cosmos-sdk/store/prefix"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
-
-	ethermint "github.com/cosmos/ethermint/types"
-
-	ethcmn "github.com/ethereum/go-ethereum/common"
-	ethstate "github.com/ethereum/go-ethereum/core/state"
-	ethcrypto "github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/rlp"
-)
-
-var (
-	_ StateObject = (*stateObject)(nil)
-
-	EmptyCodeHash = ethcrypto.Keccak256(nil)
-)
-
-// StateObject interface for interacting with state object
-type StateObject interface {
-	GetCommittedState(db ethstate.Database, key ethcmn.Hash) ethcmn.Hash
-	GetState(db ethstate.Database, key ethcmn.Hash) ethcmn.Hash
-	SetState(db ethstate.Database, key, value ethcmn.Hash)
-
-	Code(db ethstate.Database) []byte
-	SetCode(codeHash ethcmn.Hash, code []byte)
-	CodeHash() []byte
-
-	AddBalance(amount *big.Int)
-	SubBalance(amount *big.Int)
-	SetBalance(amount *big.Int)
-
-	Balance() *big.Int
-	ReturnGas(gas *big.Int)
-	Address() ethcmn.Address
-
-	SetNonce(nonce uint64)
-	Nonce() uint64
-}
-
-// stateObject represents an Ethereum account which is being modified.
-//
-// The usage pattern is as follows:
-// First you need to obtain a state object.
-// Account values can be accessed and modified through the object.
-// Finally, call CommitTrie to write the modified storage trie into a database.
-type stateObject struct {
-	code ethermint.Code // contract bytecode, which gets set when code is loaded
-	// State objects are used by the consensus core and VM which are
-	// unable to deal with database-level errors. Any error that occurs
-	// during a database read is memoized here and will eventually be returned
-	// by StateDB.Commit.
-	originStorage Storage // Storage cache of original entries to dedup rewrites
-	dirtyStorage  Storage // Storage entries that need to be flushed to disk
-
-	// DB error
-	dbErr   error
-	stateDB *CommitStateDB
-	account *ethermint.EthAccount
-	// balance represents the amount of the EVM denom token that an account holds
-	balance sdk.Int
-
-	keyToOriginStorageIndex map[ethcmn.Hash]int
-	keyToDirtyStorageIndex  map[ethcmn.Hash]int
-
-	address ethcmn.Address
-
-	// cache flags
-	//
-	// When an object is marked suicided it will be delete from the trie during
-	// the "update" phase of the state transition.
-	dirtyCode bool // true if the code was updated
-	suicided  bool
-	deleted   bool
-}
-
-func newStateObject(db *CommitStateDB, accProto authtypes.AccountI, balance sdk.Int) *stateObject {
-	ethAccount, ok := accProto.(*ethermint.EthAccount)
-	if !ok {
-		panic(fmt.Sprintf("invalid account type for state object: %T", accProto))
-	}
-
-	// set empty code hash
-	if ethAccount.CodeHash == nil {
-		ethAccount.CodeHash = EmptyCodeHash
-	}
-
-	return &stateObject{
-		stateDB:                 db,
-		account:                 ethAccount,
-		balance:                 balance,
-		address:                 ethAccount.EthAddress(),
-		originStorage:           Storage{},
-		dirtyStorage:            Storage{},
-		keyToOriginStorageIndex: make(map[ethcmn.Hash]int),
-		keyToDirtyStorageIndex:  make(map[ethcmn.Hash]int),
-	}
-}
-
-// ----------------------------------------------------------------------------
-// Setters
-// ----------------------------------------------------------------------------
-
-// SetState updates a value in account storage. Note, the key will be prefixed
-// with the address of the state object.
-func (so *stateObject) SetState(db ethstate.Database, key, value ethcmn.Hash) {
-	// if the new value is the same as old, don't set
-	prev := so.GetState(db, key)
-	if prev == value {
-		return
-	}
-
-	prefixKey := so.GetStorageByAddressKey(key.Bytes())
-
-	// since the new value is different, update and journal the change
-	so.stateDB.journal.append(storageChange{
-		account:   &so.address,
-		key:       prefixKey,
-		prevValue: prev,
-	})
-
-	so.setState(prefixKey, value)
-}
-
-// setState sets a state with a prefixed key and value to the dirty storage.
-func (so *stateObject) setState(key, value ethcmn.Hash) {
-	idx, ok := so.keyToDirtyStorageIndex[key]
-	if ok {
-		so.dirtyStorage[idx].Value = value.String()
-		return
-	}
-
-	// create new entry
-	so.dirtyStorage = append(so.dirtyStorage, NewState(key, value))
-	idx = len(so.dirtyStorage) - 1
-	so.keyToDirtyStorageIndex[key] = idx
-}
-
-// SetCode sets the state object's code.
-func (so *stateObject) SetCode(codeHash ethcmn.Hash, code []byte) {
-	prevCode := so.Code(nil)
-
-	so.stateDB.journal.append(codeChange{
-		account:  &so.address,
-		prevHash: so.CodeHash(),
-		prevCode: prevCode,
-	})
-
-	so.setCode(codeHash, code)
-}
-
-func (so *stateObject) setCode(codeHash ethcmn.Hash, code []byte) {
-	so.code = code
-	so.account.CodeHash = codeHash.Bytes()
-	so.dirtyCode = true
-}
-
-// AddBalance adds an amount to a state object's balance. It is used to add
-// funds to the destination account of a transfer.
-func (so *stateObject) AddBalance(amount *big.Int) {
-	amt := sdk.NewIntFromBigInt(amount)
-	// EIP158: We must check emptiness for the objects such that the account
-	// clearing (0,0,0 objects) can take effect.
-
-	// NOTE: this will panic if amount is nil
-	if amt.IsZero() {
-		if so.empty() {
-			so.touch()
-		}
-		return
-	}
-
-	newBalance := so.balance.Add(amt)
-	so.SetBalance(newBalance.BigInt())
-}
-
-// SubBalance removes an amount from the stateObject's balance. It is used to
-// remove funds from the origin account of a transfer.
-func (so *stateObject) SubBalance(amount *big.Int) {
-	amt := sdk.NewIntFromBigInt(amount)
-	if amt.IsZero() {
-		return
-	}
-
-	newBalance := so.balance.Sub(amt)
-	so.SetBalance(newBalance.BigInt())
-}
-
-// SetBalance sets the state object's balance. It doesn't perform any validation
-// on the amount value.
-func (so *stateObject) SetBalance(amount *big.Int) {
-	amt := sdk.NewIntFromBigInt(amount)
-
-	so.stateDB.journal.append(balanceChange{
-		account: &so.address,
-		prev:    so.balance,
-	})
-
-	so.setBalance(amt)
-}
-
-func (so *stateObject) setBalance(amount sdk.Int) {
-	so.balance = amount
-}
-
-// SetNonce sets the state object's nonce (i.e sequence number of the account).
-func (so *stateObject) SetNonce(nonce uint64) {
-	so.stateDB.journal.append(nonceChange{
-		account: &so.address,
-		prev:    so.account.Sequence,
-	})
-
-	so.setNonce(nonce)
-}
-
-func (so *stateObject) setNonce(nonce uint64) {
-	if so.account == nil {
-		panic("state object account is empty")
-	}
-	so.account.Sequence = nonce
-}
-
-// setError remembers the first non-nil error it is called with.
-func (so *stateObject) setError(err error) {
-	if so.dbErr == nil {
-		so.dbErr = err
-	}
-}
-
-func (so *stateObject) markSuicided() {
-	so.suicided = true
-}
-
-// commitState commits all dirty storage to a KVStore and resets
-// the dirty storage slice to the empty state.
-func (so *stateObject) commitState() {
-	ctx := so.stateDB.ctx
-	store := prefix.NewStore(ctx.KVStore(so.stateDB.storeKey), AddressStoragePrefix(so.Address()))
-
-	for _, state := range so.dirtyStorage {
-		// NOTE: key is already prefixed from GetStorageByAddressKey
-
-		key := ethcmn.HexToHash(state.Key)
-		value := ethcmn.HexToHash(state.Value)
-		// delete empty values from the store
-		if ethermint.IsEmptyHash(state.Value) {
-			store.Delete(key.Bytes())
-		}
-
-		delete(so.keyToDirtyStorageIndex, key)
-
-		// skip no-op changes, persist actual changes
-		idx, ok := so.keyToOriginStorageIndex[key]
-		if !ok {
-			continue
-		}
-
-		if ethermint.IsEmptyHash(state.Value) {
-			delete(so.keyToOriginStorageIndex, key)
-			continue
-		}
-
-		if state.Value == so.originStorage[idx].Value {
-			continue
-		}
-
-		so.originStorage[idx].Value = state.Value
-		store.Set(key.Bytes(), value.Bytes())
-	}
-	// clean storage as all entries are dirty
-	so.dirtyStorage = Storage{}
-}
-
-// commitCode persists the state object's code to the KVStore.
-func (so *stateObject) commitCode() {
-	ctx := so.stateDB.ctx
-	store := prefix.NewStore(ctx.KVStore(so.stateDB.storeKey), KeyPrefixCode)
-	store.Set(so.CodeHash(), so.code)
-}
-
-// ----------------------------------------------------------------------------
-// Getters
-// ----------------------------------------------------------------------------
-
-// Address returns the address of the state object.
-func (so stateObject) Address() ethcmn.Address {
-	return so.address
-}
-
-// Balance returns the state object's current balance.
-func (so *stateObject) Balance() *big.Int {
-	balance := so.balance.BigInt()
-	if balance == nil {
-		return zeroBalance
-	}
-	return balance
-}
-
-// CodeHash returns the state object's code hash.
-func (so *stateObject) CodeHash() []byte {
-	if so.account == nil || len(so.account.CodeHash) == 0 {
-		return EmptyCodeHash
-	}
-	return so.account.CodeHash
-}
-
-// Nonce returns the state object's current nonce (sequence number).
-func (so *stateObject) Nonce() uint64 {
-	if so.account == nil {
-		return 0
-	}
-	return so.account.Sequence
-}
-
-// Code returns the contract code associated with this object, if any.
-func (so *stateObject) Code(_ ethstate.Database) []byte {
-	if len(so.code) > 0 {
-		return so.code
-	}
-
-	if bytes.Equal(so.CodeHash(), EmptyCodeHash) {
-		return nil
-	}
-
-	ctx := so.stateDB.ctx
-	store := prefix.NewStore(ctx.KVStore(so.stateDB.storeKey), KeyPrefixCode)
-	code := store.Get(so.CodeHash())
-
-	if len(code) == 0 {
-		so.setError(fmt.Errorf("failed to get code hash %x for address %s", so.CodeHash(), so.Address().String()))
-	}
-
-	return code
-}
-
-// GetState retrieves a value from the account storage trie. Note, the key will
-// be prefixed with the address of the state object.
-func (so *stateObject) GetState(db ethstate.Database, key ethcmn.Hash) ethcmn.Hash {
-	prefixKey := so.GetStorageByAddressKey(key.Bytes())
-
-	// if we have a dirty value for this state entry, return it
-	idx, dirty := so.keyToDirtyStorageIndex[prefixKey]
-	if dirty {
-		value := ethcmn.HexToHash(so.dirtyStorage[idx].Value)
-		return value
-	}
-
-	// otherwise return the entry's original value
-	value := so.GetCommittedState(db, key)
-	return value
-}
-
-// GetCommittedState retrieves a value from the committed account storage trie.
-//
-// NOTE: the key will be prefixed with the address of the state object.
-func (so *stateObject) GetCommittedState(_ ethstate.Database, key ethcmn.Hash) ethcmn.Hash {
-	prefixKey := so.GetStorageByAddressKey(key.Bytes())
-
-	// if we have the original value cached, return that
-	idx, cached := so.keyToOriginStorageIndex[prefixKey]
-	if cached {
-		value := ethcmn.HexToHash(so.originStorage[idx].Value)
-		return value
-	}
-
-	// otherwise load the value from the KVStore
-	state := NewState(prefixKey, ethcmn.Hash{})
-	value := ethcmn.Hash{}
-
-	ctx := so.stateDB.ctx
-	store := prefix.NewStore(ctx.KVStore(so.stateDB.storeKey), AddressStoragePrefix(so.Address()))
-	rawValue := store.Get(prefixKey.Bytes())
-
-	if len(rawValue) > 0 {
-		value.SetBytes(rawValue)
-		state.Value = value.String()
-	}
-
-	so.originStorage = append(so.originStorage, state)
-	so.keyToOriginStorageIndex[prefixKey] = len(so.originStorage) - 1
-	return value
-}
-
-// ----------------------------------------------------------------------------
-// Auxiliary
-// ----------------------------------------------------------------------------
-
-// ReturnGas returns the gas back to the origin. Used by the Virtual machine or
-// Closures. It performs a no-op.
-func (so *stateObject) ReturnGas(gas *big.Int) {}
-
-func (so *stateObject) deepCopy(db *CommitStateDB) *stateObject {
-	newStateObj := newStateObject(db, so.account, so.balance)
-
-	newStateObj.code = so.code
-	newStateObj.dirtyStorage = so.dirtyStorage.Copy()
-	newStateObj.originStorage = so.originStorage.Copy()
-	newStateObj.suicided = so.suicided
-	newStateObj.dirtyCode = so.dirtyCode
-	newStateObj.deleted = so.deleted
-
-	return newStateObj
-}
-
-// empty returns whether the account is considered empty.
-func (so *stateObject) empty() bool {
-	return so.account == nil ||
-		(so.account != nil &&
-			so.account.Sequence == 0 &&
-			(so.balance.BigInt() == nil || so.balance.IsZero()) &&
-			bytes.Equal(so.account.CodeHash, EmptyCodeHash))
-}
-
-// EncodeRLP implements rlp.Encoder.
-func (so *stateObject) EncodeRLP(w io.Writer) error {
-	return rlp.Encode(w, so.account)
-}
-
-func (so *stateObject) touch() {
-	so.stateDB.journal.append(touchChange{
-		account: &so.address,
-	})
-
-	if so.address == ripemd {
-		// Explicitly put it in the dirty-cache, which is otherwise generated from
-		// flattened journals.
-		so.stateDB.journal.dirty(so.address)
-	}
-}
-
-// GetStorageByAddressKey returns a hash of the composite key for a state
-// object's storage prefixed with it's address.
-func (so stateObject) GetStorageByAddressKey(key []byte) ethcmn.Hash {
-	prefix := so.Address().Bytes()
-	compositeKey := make([]byte, len(prefix)+len(key))
-
-	copy(compositeKey, prefix)
-	copy(compositeKey[len(prefix):], key)
-
-	return ethcrypto.Keccak256Hash(compositeKey)
-}
-
-// stateEntry represents a single key value pair from the StateDB's stateObject mappindg.
-// This is to prevent non determinism at genesis initialization or export.
-type stateEntry struct {
-	// address key of the state object
-	address     ethcmn.Address
-	stateObject *stateObject
-}

x/evm/types/state_object_test.go

@@ -1,135 +0,0 @@
-package types_test
-
-import (
-	"math/big"
-
-	ethcmn "github.com/ethereum/go-ethereum/common"
-)
-
-func (suite *StateDBTestSuite) TestStateObject_State() {
-	testCase := []struct {
-		name     string
-		key      ethcmn.Hash
-		expValue ethcmn.Hash
-		malleate func()
-	}{
-		{
-			"no set value, load from KVStore",
-			ethcmn.BytesToHash([]byte("key")),
-			ethcmn.Hash{},
-			func() {},
-		},
-		{
-			"no-op SetState",
-			ethcmn.BytesToHash([]byte("key")),
-			ethcmn.Hash{},
-			func() {
-				suite.stateObject.SetState(nil, ethcmn.BytesToHash([]byte("key")), ethcmn.Hash{})
-			},
-		},
-		{
-			"cached value",
-			ethcmn.BytesToHash([]byte("key1")),
-			ethcmn.BytesToHash([]byte("value1")),
-			func() {
-				suite.stateObject.SetState(nil, ethcmn.BytesToHash([]byte("key1")), ethcmn.BytesToHash([]byte("value1")))
-			},
-		},
-		{
-			"update value",
-			ethcmn.BytesToHash([]byte("key1")),
-			ethcmn.BytesToHash([]byte("value2")),
-			func() {
-				suite.stateObject.SetState(nil, ethcmn.BytesToHash([]byte("key1")), ethcmn.BytesToHash([]byte("value2")))
-			},
-		},
-		{
-			"update various keys",
-			ethcmn.BytesToHash([]byte("key1")),
-			ethcmn.BytesToHash([]byte("value1")),
-			func() {
-				suite.stateObject.SetState(nil, ethcmn.BytesToHash([]byte("key1")), ethcmn.BytesToHash([]byte("value1")))
-				suite.stateObject.SetState(nil, ethcmn.BytesToHash([]byte("key2")), ethcmn.BytesToHash([]byte("value2")))
-				suite.stateObject.SetState(nil, ethcmn.BytesToHash([]byte("key3")), ethcmn.BytesToHash([]byte("value3")))
-			},
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-
-		value := suite.stateObject.GetState(nil, tc.key)
-		suite.Require().Equal(tc.expValue, value, tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateObject_AddBalance() {
-	testCase := []struct {
-		name       string
-		amount     *big.Int
-		expBalance *big.Int
-	}{
-		{"zero amount", big.NewInt(0), big.NewInt(0)},
-		{"positive amount", big.NewInt(10), big.NewInt(10)},
-		{"negative amount", big.NewInt(-1), big.NewInt(9)},
-	}
-
-	for _, tc := range testCase {
-		suite.stateObject.AddBalance(tc.amount)
-		suite.Require().Equal(tc.expBalance, suite.stateObject.Balance(), tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateObject_SubBalance() {
-	testCase := []struct {
-		name       string
-		amount     *big.Int
-		expBalance *big.Int
-	}{
-		{"zero amount", big.NewInt(0), big.NewInt(0)},
-		{"negative amount", big.NewInt(-10), big.NewInt(10)},
-		{"positive amount", big.NewInt(1), big.NewInt(9)},
-	}
-
-	for _, tc := range testCase {
-		suite.stateObject.SubBalance(tc.amount)
-		suite.Require().Equal(tc.expBalance, suite.stateObject.Balance(), tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateObject_Code() {
-	testCase := []struct {
-		name     string
-		expCode  []byte
-		malleate func()
-	}{
-		{
-			"cached code",
-			[]byte("code"),
-			func() {
-				suite.stateObject.SetCode(ethcmn.BytesToHash([]byte("code_hash")), []byte("code"))
-			},
-		},
-		{
-			"empty code hash",
-			nil,
-			func() {
-				suite.stateObject.SetCode(ethcmn.Hash{}, nil)
-			},
-		},
-		{
-			"empty code",
-			nil,
-			func() {
-				suite.stateObject.SetCode(ethcmn.BytesToHash([]byte("code_hash")), nil)
-			},
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-
-		code := suite.stateObject.Code(nil)
-		suite.Require().Equal(tc.expCode, code, tc.name)
-	}
-}

x/evm/types/state_transition.go

@@ -1,340 +0,0 @@
-package types
-
-import (
-	"math/big"
-	"os"
-	"time"
-
-	"github.com/pkg/errors"
-	log "github.com/xlab/suplog"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
-	ethtypes "github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/core/vm"
-	tmtypes "github.com/tendermint/tendermint/types"
-
-	"github.com/cosmos/cosmos-sdk/telemetry"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-)
-
-// StateTransition defines data to transitionDB in evm
-type StateTransition struct {
-	// TxData fields
-	Message core.Message
-
-	ChainID  *big.Int
-	Csdb     *CommitStateDB
-	TxHash   *common.Hash
-	Simulate bool // i.e CheckTx execution
-	Debug    bool // enable EVM debugging
-}
-
-// GasInfo returns the gas limit, gas consumed and gas refunded from the EVM transition
-// execution
-type GasInfo struct {
-	GasLimit    uint64
-	GasConsumed uint64
-	GasRefunded uint64
-}
-
-// ExecutionResult represents what's returned from a transition
-type ExecutionResult struct {
-	Logs     []*ethtypes.Log
-	Bloom    *big.Int
-	Response *MsgEthereumTxResponse
-	GasInfo  GasInfo
-}
-
-// GetHashFn implements vm.GetHashFunc for Ethermint. It handles 3 cases:
-//  1. The requested height matches the current height from context (and thus same epoch number)
-//  2. The requested height is from an previous height from the same chain epoch
-//  3. The requested height is from a height greater than the latest one
-func GetHashFn(ctx sdk.Context, csdb *CommitStateDB) vm.GetHashFunc {
-	return func(height uint64) common.Hash {
-		switch {
-		case ctx.BlockHeight() == int64(height):
-			// Case 1: The requested height matches the one from the context so we can retrieve the header
-			// hash directly from the context.
-			return csdb.bhash
-
-		case ctx.BlockHeight() > int64(height):
-			// Case 2: if the chain is not the current height we need to retrieve the hash from the store for the
-			// current chain epoch. This only applies if the current height is greater than the requested height.
-			return csdb.WithContext(ctx).GetHeightHash(height)
-
-		default:
-			// Case 3: heights greater than the current one returns an empty hash.
-			return common.Hash{}
-		}
-	}
-}
-
-func (st *StateTransition) newEVM(
-	ctx sdk.Context,
-	csdb *CommitStateDB,
-	gasLimit uint64,
-	config ChainConfig,
-	extraEIPs []int64,
-) *vm.EVM {
-	// Create context for evm
-	blockCtx := vm.BlockContext{
-		CanTransfer: core.CanTransfer,
-		Transfer:    core.Transfer,
-		GetHash:     GetHashFn(ctx, csdb),
-		Coinbase:    common.Address{}, // there's no beneficiary since we're not mining
-		BlockNumber: big.NewInt(ctx.BlockHeight()),
-		Time:        big.NewInt(ctx.BlockHeader().Time.Unix()),
-		Difficulty:  big.NewInt(0), // unused. Only required in PoW context
-		GasLimit:    gasLimit,
-	}
-
-	txCtx := core.NewEVMTxContext(st.Message)
-
-	eips := make([]int, len(extraEIPs))
-	for i, eip := range extraEIPs {
-		eips[i] = int(eip)
-	}
-
-	vmConfig := vm.Config{
-		EnablePreimageRecording: false, // no need for StateDB.AddPreimage
-		ExtraEips:               eips,
-	}
-
-	if st.Debug {
-		vmConfig.Tracer = vm.NewJSONLogger(&vm.LogConfig{
-			Debug: true,
-		}, os.Stderr)
-
-		vmConfig.Debug = true
-	}
-
-	return vm.NewEVM(blockCtx, txCtx, csdb, config.EthereumConfig(st.ChainID), vmConfig)
-}
-
-// TransitionDb will transition the state by applying the current transaction and
-// returning the evm execution result.
-// NOTE: State transition checks are run during AnteHandler execution.
-func (st *StateTransition) TransitionDb(ctx sdk.Context, config ChainConfig) (resp *ExecutionResult, err error) {
-	defer telemetry.ModuleMeasureSince(ModuleName, time.Now(), MetricKeyTransitionDB)
-
-	contractCreation := st.Message.To() == nil
-
-	cost, err := core.IntrinsicGas(st.Message.Data(), st.Message.AccessList(), true, false, true)
-	if err != nil {
-		err = sdkerrors.Wrap(err, "invalid intrinsic gas for transaction")
-		return nil, err
-	}
-
-	// This gas limit the the transaction gas limit with intrinsic gas subtracted
-	gasLimit := st.Message.Gas() - ctx.GasMeter().GasConsumed()
-
-	csdb := st.Csdb.WithContext(ctx)
-	if st.Simulate {
-		// gasLimit is set here because stdTxs incur gaskv charges in the ante handler, but for eth_call
-		// the cost needs to be the same as an Ethereum transaction sent through the web3 API
-		consumedGas := ctx.GasMeter().GasConsumed()
-		gasLimit = st.Message.Gas() - cost
-		if consumedGas < cost {
-			// If Cosmos standard tx ante handler cost is less than EVM intrinsic cost
-			// gas must be consumed to match to accurately simulate an Ethereum transaction
-			ctx.GasMeter().ConsumeGas(cost-consumedGas, "Intrinsic gas match")
-		}
-
-		csdb = st.Csdb.Copy()
-	}
-
-	// This gas meter is set up to consume gas from gaskv during evm execution and be ignored
-	currentGasMeter := ctx.GasMeter()
-	evmGasMeter := sdk.NewInfiniteGasMeter()
-	csdb.WithContext(ctx.WithGasMeter(evmGasMeter))
-
-	// Clear cache of accounts to handle changes outside of the EVM
-	csdb.UpdateAccounts()
-
-	params := csdb.GetParams()
-
-	gasPrice := ctx.MinGasPrices().AmountOf(params.EvmDenom)
-	//gasPrice := sdk.ZeroDec()
-	if gasPrice.IsNil() {
-		return nil, errors.New("min gas price cannot be nil")
-	}
-
-	evm := st.newEVM(ctx, csdb, gasLimit, config, params.ExtraEIPs)
-
-	var (
-		ret             []byte
-		leftOverGas     uint64
-		contractAddress common.Address
-		senderRef       = vm.AccountRef(st.Message.From())
-	)
-
-	// Get nonce of account outside of the EVM
-	currentNonce := csdb.GetNonce(st.Message.From())
-	// Set nonce of sender account before evm state transition for usage in generating Create address
-	csdb.SetNonce(st.Message.From(), st.Message.Nonce())
-
-	// create contract or execute call
-	switch contractCreation {
-	case true:
-		if !params.EnableCreate {
-			return nil, ErrCreateDisabled
-		}
-
-		ret, contractAddress, leftOverGas, err = evm.Create(senderRef, st.Message.Data(), gasLimit, st.Message.Value())
-
-		if err != nil {
-			log.WithField("simulate", st.Simulate).
-				WithField("nonce", st.Message.Nonce()).
-				WithField("contract", contractAddress.String()).
-				WithError(err).Warningln("evm contract creation failed")
-		}
-
-		gasConsumed := gasLimit - leftOverGas
-		resp = &ExecutionResult{
-			Response: &MsgEthereumTxResponse{
-				Ret: ret,
-			},
-			GasInfo: GasInfo{
-				GasConsumed: gasConsumed,
-				GasLimit:    gasLimit,
-				GasRefunded: leftOverGas,
-			},
-		}
-	default:
-		if !params.EnableCall {
-			return nil, ErrCallDisabled
-		}
-
-		// Increment the nonce for the next transaction	(just for evm state transition)
-		csdb.SetNonce(st.Message.From(), csdb.GetNonce(st.Message.From())+1)
-
-		ret, leftOverGas, err = evm.Call(senderRef, *st.Message.To(), st.Message.Data(), gasLimit, st.Message.Value())
-
-		// fmt.Println("EVM CALL!!!", senderRef.Address().Hex(), (*st.Message.To()).Hex(), gasLimit)
-		// fmt.Println("EVM CALL RESULT", common.ToHex(ret), leftOverGas, err)
-
-		if err != nil {
-			log.WithField("recipient", st.Message.To().String()).
-				WithError(err).Debugln("evm call failed")
-		}
-
-		gasConsumed := gasLimit - leftOverGas
-		resp = &ExecutionResult{
-			Response: &MsgEthereumTxResponse{
-				Ret: ret,
-			},
-			GasInfo: GasInfo{
-				GasConsumed: gasConsumed,
-				GasLimit:    gasLimit,
-				GasRefunded: leftOverGas,
-			},
-		}
-	}
-
-	if err != nil {
-		// Consume gas before returning
-		ctx.GasMeter().ConsumeGas(resp.GasInfo.GasConsumed, "evm execution consumption")
-		return resp, err
-	}
-
-	// Resets nonce to value pre state transition
-	csdb.SetNonce(st.Message.From(), currentNonce)
-
-	var (
-		logs []*ethtypes.Log
-	)
-
-	if st.TxHash != nil && !st.Simulate {
-		logs, err = csdb.GetLogs(*st.TxHash)
-		if err != nil {
-			err = errors.Wrap(err, "failed to get logs")
-			return nil, err
-		}
-	}
-
-	if !st.Simulate {
-		// Finalise state if not a simulated transaction
-		// TODO: change to depend on config
-		if err := csdb.Finalise(true); err != nil {
-			return nil, err
-		}
-	}
-
-	resp.Logs = logs
-	resp.Response = &MsgEthereumTxResponse{
-		Logs: NewLogsFromEth(logs),
-		Ret:  ret,
-	}
-
-	// TODO: Refund unused gas here, if intended in future
-
-	// Consume gas from evm execution
-	// Out of gas check does not need to be done here since it is done within the EVM execution
-
-	// TODO: @albert, @maxim, decide if can take this out, since InternalEthereumTx may want to continue execution afterwards
-	// which will use gas.
-	_ = currentGasMeter
-	//ctx.WithGasMeter(currentGasMeter).GasMeter().ConsumeGas(resp.GasInfo.GasConsumed, "EVM execution consumption")
-
-	return resp, nil
-}
-
-// StaticCall executes the contract associated with the addr with the given input
-// as parameters while disallowing any modifications to the state during the call.
-// Opcodes that attempt to perform such modifications will result in exceptions
-// instead of performing the modifications.
-func (st *StateTransition) StaticCall(ctx sdk.Context, config ChainConfig) ([]byte, error) {
-	defer telemetry.ModuleMeasureSince(ModuleName, time.Now(), MetricKeyStaticCall)
-
-	// This gas limit the the transaction gas limit with intrinsic gas subtracted
-	gasLimit := st.Message.Gas() - ctx.GasMeter().GasConsumed()
-	csdb := st.Csdb.WithContext(ctx)
-
-	// This gas meter is set up to consume gas from gaskv during evm execution and be ignored
-	evmGasMeter := sdk.NewInfiniteGasMeter()
-	csdb.WithContext(ctx.WithGasMeter(evmGasMeter))
-
-	// Clear cache of accounts to handle changes outside of the EVM
-	csdb.UpdateAccounts()
-
-	params := csdb.GetParams()
-
-	gasPrice := ctx.MinGasPrices().AmountOf(params.EvmDenom)
-	if gasPrice.IsNil() {
-		return []byte{}, errors.New("min gas price cannot be nil")
-	}
-
-	evm := st.newEVM(ctx, csdb, gasLimit, config, params.ExtraEIPs)
-	senderRef := vm.AccountRef(st.Message.From())
-
-	ret, _, err := evm.StaticCall(senderRef, *st.Message.To(), st.Message.Data(), gasLimit)
-
-	// fmt.Println("EVM STATIC CALL!!!", senderRef.Address().Hex(), (*st.Message.To()).Hex(), st.Message.Data(), gasLimit)
-	// fmt.Println("EVM STATIC CALL RESULT", common.ToHex(ret), leftOverGas, err)
-
-	return ret, err
-}
-
-// HashFromContext returns the Ethereum Header hash from the context's Tendermint
-// block header.
-func HashFromContext(ctx sdk.Context) common.Hash {
-	// cast the ABCI header to tendermint Header type
-	protoHeader := ctx.BlockHeader()
-	tmHeader, err := tmtypes.HeaderFromProto(&protoHeader)
-	if err != nil {
-		return common.Hash{}
-	}
-
-	// get the Tendermint block hash from the current header
-	tmBlockHash := tmHeader.Hash()
-
-	// NOTE: if the validator set hash is missing the hash will be returned as nil,
-	// so we need to check for this case to prevent a panic when calling Bytes()
-	if tmBlockHash == nil {
-		return common.Hash{}
-	}
-
-	return common.BytesToHash(tmBlockHash.Bytes())
-}

x/evm/types/state_transition_test.go

@@ -1,190 +0,0 @@
-package types_test
-
-import (
-	"math/big"
-
-	sdk "github.com/cosmos/cosmos-sdk/types"
-
-	"github.com/cosmos/ethermint/crypto/ethsecp256k1"
-	ethermint "github.com/cosmos/ethermint/types"
-	"github.com/cosmos/ethermint/x/evm/types"
-
-	ethcmn "github.com/ethereum/go-ethereum/common"
-	ethtypes "github.com/ethereum/go-ethereum/core/types"
-	ethcrypto "github.com/ethereum/go-ethereum/crypto"
-)
-
-func (suite *StateDBTestSuite) TestTransitionDb() {
-	suite.stateDB.SetNonce(suite.address, 123)
-
-	addr := sdk.AccAddress(suite.address.Bytes())
-	balance := ethermint.NewPhotonCoin(sdk.NewInt(5000))
-	acc := suite.app.AccountKeeper.GetAccount(suite.ctx, addr)
-	suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-	suite.app.BankKeeper.SetBalance(suite.ctx, addr, balance)
-
-	priv, err := ethsecp256k1.GenerateKey()
-	suite.Require().NoError(err)
-	recipient := ethcrypto.PubkeyToAddress(priv.ToECDSA().PublicKey)
-
-	testCase := []struct {
-		name     string
-		malleate func()
-		state    types.StateTransition
-		expPass  bool
-	}{
-		{
-			"passing state transition",
-			func() {},
-			types.StateTransition{
-				Message: ethtypes.NewMessage(
-					suite.address,
-					&recipient,
-					123,
-					big.NewInt(50),
-					11,
-					big.NewInt(10),
-					[]byte("data"),
-					nil,
-					true,
-				),
-				ChainID:  big.NewInt(1),
-				Csdb:     suite.stateDB,
-				TxHash:   &ethcmn.Hash{},
-				Simulate: suite.ctx.IsCheckTx(),
-			},
-			true,
-		},
-		{
-			"contract creation",
-			func() {},
-			types.StateTransition{
-				Message: ethtypes.NewMessage(
-					suite.address,
-					nil,
-					123,
-					big.NewInt(50),
-					11,
-					big.NewInt(10),
-					[]byte("data"),
-					nil,
-					true,
-				),
-				ChainID:  big.NewInt(1),
-				Csdb:     suite.stateDB,
-				TxHash:   &ethcmn.Hash{},
-				Simulate: true,
-			},
-			true,
-		},
-		{
-			"state transition simulation",
-			func() {},
-			types.StateTransition{
-				Message: ethtypes.NewMessage(
-					suite.address,
-					&recipient,
-					123,
-					big.NewInt(50),
-					11,
-					big.NewInt(10),
-					[]byte("data"),
-					nil,
-					true,
-				),
-				ChainID:  big.NewInt(1),
-				Csdb:     suite.stateDB,
-				TxHash:   &ethcmn.Hash{},
-				Simulate: true,
-			},
-			true,
-		},
-		{
-			"fail by sending more than balance",
-			func() {},
-			types.StateTransition{
-				Message: ethtypes.NewMessage(
-					suite.address,
-					&recipient,
-					123,
-					big.NewInt(50000000),
-					11,
-					big.NewInt(10),
-					[]byte("data"),
-					nil,
-					true,
-				),
-				ChainID:  big.NewInt(1),
-				Csdb:     suite.stateDB,
-				TxHash:   &ethcmn.Hash{},
-				Simulate: suite.ctx.IsCheckTx(),
-			},
-			false,
-		},
-		{
-			"failed to Finalize",
-			func() {},
-			types.StateTransition{
-				Message: ethtypes.NewMessage(
-					suite.address,
-					&recipient,
-					123,
-					big.NewInt(-5000),
-					11,
-					big.NewInt(10),
-					[]byte("data"),
-					nil,
-					true,
-				),
-				ChainID:  big.NewInt(1),
-				Csdb:     suite.stateDB,
-				TxHash:   &ethcmn.Hash{},
-				Simulate: false,
-			},
-			false,
-		},
-		{
-			"nil gas price",
-			func() {
-				invalidGas := sdk.DecCoins{
-					{Denom: ethermint.AttoPhoton},
-				}
-				suite.ctx = suite.ctx.WithMinGasPrices(invalidGas)
-			},
-			types.StateTransition{
-				Message: ethtypes.NewMessage(
-					suite.address,
-					&recipient,
-					123,
-					big.NewInt(50),
-					11,
-					nil,
-					[]byte("data"),
-					nil,
-					true,
-				),
-				ChainID:  big.NewInt(1),
-				Csdb:     suite.stateDB,
-				TxHash:   &ethcmn.Hash{},
-				Simulate: suite.ctx.IsCheckTx(),
-			},
-			false,
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-
-		_, err = tc.state.TransitionDb(suite.ctx, types.DefaultChainConfig())
-
-		if tc.expPass {
-			suite.Require().NoError(err, tc.name)
-			fromBalance := suite.app.EvmKeeper.CommitStateDB.GetBalance(suite.address)
-			toBalance := suite.app.EvmKeeper.CommitStateDB.GetBalance(recipient)
-			suite.Require().Equal(fromBalance, big.NewInt(4950), tc.name)
-			suite.Require().Equal(toBalance, big.NewInt(50), tc.name)
-		} else {
-			suite.Require().Error(err, tc.name)
-		}
-	}
-}

x/evm/types/statedb.go

@@ -1,990 +0,0 @@
-package types
-
-import (
-	"fmt"
-	"math/big"
-	"sort"
-	"sync"
-
-	"github.com/cosmos/cosmos-sdk/store/prefix"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
-
-	ethermint "github.com/cosmos/ethermint/types"
-
-	ethcmn "github.com/ethereum/go-ethereum/common"
-	ethstate "github.com/ethereum/go-ethereum/core/state"
-	ethtypes "github.com/ethereum/go-ethereum/core/types"
-	ethvm "github.com/ethereum/go-ethereum/core/vm"
-	ethcrypto "github.com/ethereum/go-ethereum/crypto"
-)
-
-var (
-	_ ethvm.StateDB = (*CommitStateDB)(nil)
-
-	zeroBalance = sdk.ZeroInt().BigInt()
-)
-
-// CommitStateDB implements the Geth state.StateDB interface. Instead of using
-// a trie and database for querying and persistence, the Keeper uses KVStores
-// and an AccountKeeper to facilitate state transitions.
-//
-// TODO: This implementation is subject to change in regards to its statefull
-// manner. In otherwords, how this relates to the keeper in this module.
-type CommitStateDB struct {
-	// TODO: We need to store the context as part of the structure itself opposed
-	// to being passed as a parameter (as it should be) in order to implement the
-	// StateDB interface. Perhaps there is a better way.
-	ctx sdk.Context
-
-	storeKey      sdk.StoreKey
-	transientKey  sdk.StoreKey
-	paramSpace    paramtypes.Subspace
-	accountKeeper AccountKeeper
-	bankKeeper    BankKeeper
-
-	// array that hold 'live' objects, which will get modified while processing a
-	// state transition
-	stateObjects         []stateEntry
-	addressToObjectIndex map[ethcmn.Address]int // map from address to the index of the state objects slice
-	stateObjectsDirty    map[ethcmn.Address]struct{}
-
-	// The refund counter, also used by state transitioning.
-	refund uint64
-
-	thash, bhash ethcmn.Hash
-	txIndex      int
-	logSize      uint
-
-	// TODO: Determine if we actually need this as we do not need preimages in
-	// the SDK, but it seems to be used elsewhere in Geth.
-	preimages           []preimageEntry
-	hashToPreimageIndex map[ethcmn.Hash]int // map from hash to the index of the preimages slice
-
-	// DB error.
-	// State objects are used by the consensus core and VM which are
-	// unable to deal with database-level errors. Any error that occurs
-	// during a database read is memo-ized here and will eventually be returned
-	// by StateDB.Commit.
-	dbErr error
-
-	// journal of state modifications. This is the backbone of
-	// Snapshot and RevertToSnapshot.
-	journal        *journal
-	validRevisions []revision
-	nextRevisionID int
-
-	// mutex for state deep copying
-	lock sync.Mutex
-}
-
-// NewCommitStateDB returns a reference to a newly initialized CommitStateDB
-// which implements Geth's state.StateDB interface.
-//
-// CONTRACT: Stores used for state must be cache-wrapped as the ordering of the
-// key/value space matters in determining the merkle root.
-func NewCommitStateDB(
-	ctx sdk.Context, storeKey, tKey sdk.StoreKey, paramSpace paramtypes.Subspace,
-	ak AccountKeeper, bankKeeper BankKeeper,
-) *CommitStateDB {
-	return &CommitStateDB{
-		ctx:                  ctx,
-		storeKey:             storeKey,
-		transientKey:         tKey,
-		paramSpace:           paramSpace,
-		accountKeeper:        ak,
-		bankKeeper:           bankKeeper,
-		stateObjects:         []stateEntry{},
-		addressToObjectIndex: make(map[ethcmn.Address]int),
-		stateObjectsDirty:    make(map[ethcmn.Address]struct{}),
-		preimages:            []preimageEntry{},
-		hashToPreimageIndex:  make(map[ethcmn.Hash]int),
-		journal:              newJournal(),
-	}
-}
-
-// WithContext returns a Database with an updated SDK context
-func (csdb *CommitStateDB) WithContext(ctx sdk.Context) *CommitStateDB {
-	csdb.ctx = ctx
-	return csdb
-}
-
-// ----------------------------------------------------------------------------
-// Setters
-// ----------------------------------------------------------------------------
-
-// SetHeightHash sets the block header hash associated with a given height.
-func (csdb *CommitStateDB) SetHeightHash(height uint64, hash ethcmn.Hash) {
-	store := prefix.NewStore(csdb.ctx.KVStore(csdb.storeKey), KeyPrefixHeightToHeaderHash)
-	store.Set(sdk.Uint64ToBigEndian(height), hash.Bytes())
-}
-
-// SetParams sets the evm parameters to the param space.
-func (csdb *CommitStateDB) SetParams(params Params) {
-	csdb.paramSpace.SetParamSet(csdb.ctx, &params)
-}
-
-// SetBalance sets the balance of an account.
-func (csdb *CommitStateDB) SetBalance(addr ethcmn.Address, amount *big.Int) {
-	so := csdb.GetOrNewStateObject(addr)
-	so.SetBalance(amount)
-}
-
-// AddBalance adds amount to the account associated with addr.
-func (csdb *CommitStateDB) AddBalance(addr ethcmn.Address, amount *big.Int) {
-	so := csdb.GetOrNewStateObject(addr)
-	so.AddBalance(amount)
-}
-
-// SubBalance subtracts amount from the account associated with addr.
-func (csdb *CommitStateDB) SubBalance(addr ethcmn.Address, amount *big.Int) {
-	so := csdb.GetOrNewStateObject(addr)
-	so.SubBalance(amount)
-}
-
-// SetNonce sets the nonce (sequence number) of an account.
-func (csdb *CommitStateDB) SetNonce(addr ethcmn.Address, nonce uint64) {
-	so := csdb.GetOrNewStateObject(addr)
-	so.SetNonce(nonce)
-}
-
-// SetState sets the storage state with a key, value pair for an account.
-func (csdb *CommitStateDB) SetState(addr ethcmn.Address, key, value ethcmn.Hash) {
-	so := csdb.GetOrNewStateObject(addr)
-	so.SetState(nil, key, value)
-}
-
-// SetCode sets the code for a given account.
-func (csdb *CommitStateDB) SetCode(addr ethcmn.Address, code []byte) {
-	so := csdb.GetOrNewStateObject(addr)
-	so.SetCode(ethcrypto.Keccak256Hash(code), code)
-}
-
-// ----------------------------------------------------------------------------
-// Transaction logs
-// Required for upgrade logic or ease of querying.
-// NOTE: we use BinaryLengthPrefixed since the tx logs are also included on Result data,
-// which can't use BinaryBare.
-// ----------------------------------------------------------------------------
-
-// SetLogs sets the logs for a transaction in the KVStore.
-func (csdb *CommitStateDB) SetLogs(hash ethcmn.Hash, logs []*ethtypes.Log) error {
-	store := prefix.NewStore(csdb.ctx.KVStore(csdb.storeKey), KeyPrefixLogs)
-
-	txLogs := NewTransactionLogsFromEth(hash, logs)
-	bz, err := ModuleCdc.MarshalBinaryBare(&txLogs)
-	if err != nil {
-		return err
-	}
-
-	store.Set(hash.Bytes(), bz)
-	csdb.logSize = uint(len(logs))
-	return nil
-}
-
-// DeleteLogs removes the logs from the KVStore. It is used during journal.Revert.
-func (csdb *CommitStateDB) DeleteLogs(hash ethcmn.Hash) {
-	store := prefix.NewStore(csdb.ctx.KVStore(csdb.storeKey), KeyPrefixLogs)
-	store.Delete(hash.Bytes())
-}
-
-// AddLog adds a new log to the state and sets the log metadata from the state.
-func (csdb *CommitStateDB) AddLog(log *ethtypes.Log) {
-	csdb.journal.append(addLogChange{txhash: csdb.thash})
-
-	log.TxHash = csdb.thash
-	log.BlockHash = csdb.bhash
-	log.TxIndex = uint(csdb.txIndex)
-	log.Index = csdb.logSize
-
-	logs, err := csdb.GetLogs(csdb.thash)
-	if err != nil {
-		// panic on unmarshal error
-		panic(err)
-	}
-
-	if err = csdb.SetLogs(csdb.thash, append(logs, log)); err != nil {
-		// panic on marshal error
-		panic(err)
-	}
-}
-
-// AddPreimage records a SHA3 preimage seen by the VM.
-func (csdb *CommitStateDB) AddPreimage(hash ethcmn.Hash, preimage []byte) {
-	if _, ok := csdb.hashToPreimageIndex[hash]; !ok {
-		csdb.journal.append(addPreimageChange{hash: hash})
-
-		pi := make([]byte, len(preimage))
-		copy(pi, preimage)
-
-		csdb.preimages = append(csdb.preimages, preimageEntry{hash: hash, preimage: pi})
-		csdb.hashToPreimageIndex[hash] = len(csdb.preimages) - 1
-	}
-}
-
-// AddRefund adds gas to the refund counter.
-func (csdb *CommitStateDB) AddRefund(gas uint64) {
-	csdb.journal.append(refundChange{prev: csdb.refund})
-	csdb.refund += gas
-}
-
-// SubRefund removes gas from the refund counter. It will panic if the refund
-// counter goes below zero.
-func (csdb *CommitStateDB) SubRefund(gas uint64) {
-	csdb.journal.append(refundChange{prev: csdb.refund})
-	if gas > csdb.refund {
-		panic("refund counter below zero")
-	}
-
-	csdb.refund -= gas
-}
-
-// ----------------------------------------------------------------------------
-// Access List // TODO: deprecate
-// ----------------------------------------------------------------------------
-
-// PrepareAccessList handles the preparatory steps for executing a state transition with
-// regards to both EIP-2929 and EIP-2930:
-//
-// 	- Add sender to access list (2929)
-// 	- Add destination to access list (2929)
-// 	- Add precompiles to access list (2929)
-// 	- Add the contents of the optional tx access list (2930)
-//
-// This method should only be called if Yolov3/Berlin/2929+2930 is applicable at the current number.
-func (csdb *CommitStateDB) PrepareAccessList(sender ethcmn.Address, dest *ethcmn.Address, precompiles []ethcmn.Address, txAccesses ethtypes.AccessList) {
-	csdb.AddAddressToAccessList(sender)
-	if dest != nil {
-		csdb.AddAddressToAccessList(*dest)
-		// If it's a create-tx, the destination will be added inside evm.create
-	}
-	for _, addr := range precompiles {
-		csdb.AddAddressToAccessList(addr)
-	}
-	for _, tuple := range txAccesses {
-		csdb.AddAddressToAccessList(tuple.Address)
-		for _, key := range tuple.StorageKeys {
-			csdb.AddSlotToAccessList(tuple.Address, key)
-		}
-	}
-}
-
-// AddressInAccessList returns true if the address is registered on the access list map.
-func (csdb *CommitStateDB) AddressInAccessList(addr ethcmn.Address) bool {
-	ts := prefix.NewStore(csdb.ctx.TransientStore(csdb.transientKey), KeyPrefixTransientAccessListAddress)
-	return ts.Has(addr.Bytes())
-}
-
-func (csdb *CommitStateDB) SlotInAccessList(addr ethcmn.Address, slot ethcmn.Hash) (addressOk bool, slotOk bool) {
-	addressOk = csdb.AddressInAccessList(addr)
-	slotOk = csdb.addressSlotInAccessList(addr, slot)
-	return addressOk, slotOk
-}
-
-func (csdb *CommitStateDB) addressSlotInAccessList(addr ethcmn.Address, slot ethcmn.Hash) bool {
-	ts := prefix.NewStore(csdb.ctx.TransientStore(csdb.transientKey), KeyPrefixTransientAccessListSlot)
-	key := append(addr.Bytes(), slot.Bytes()...)
-	return ts.Has(key)
-}
-
-// AddAddressToAccessList adds the given address to the access list. This operation is safe to perform
-// even if the feature/fork is not active yet
-func (csdb *CommitStateDB) AddAddressToAccessList(addr ethcmn.Address) {
-	if csdb.AddressInAccessList(addr) {
-		return
-	}
-
-	ts := prefix.NewStore(csdb.ctx.TransientStore(csdb.transientKey), KeyPrefixTransientAccessListAddress)
-	ts.Set(addr.Bytes(), []byte{0x1})
-}
-
-// AddSlotToAccessList adds the given (address,slot) to the access list. This operation is safe to perform
-// even if the feature/fork is not active yet
-func (csdb *CommitStateDB) AddSlotToAccessList(addr ethcmn.Address, slot ethcmn.Hash) {
-	csdb.AddAddressToAccessList(addr)
-	if csdb.addressSlotInAccessList(addr, slot) {
-		return
-	}
-
-	ts := prefix.NewStore(csdb.ctx.TransientStore(csdb.transientKey), KeyPrefixTransientAccessListSlot)
-	key := append(addr.Bytes(), slot.Bytes()...)
-	ts.Set(key, []byte{0x1})
-}
-
-// ----------------------------------------------------------------------------
-// Getters
-// ----------------------------------------------------------------------------
-
-// GetHeightHash returns the block header hash associated with a given block height and chain epoch number.
-func (csdb *CommitStateDB) GetHeightHash(height uint64) ethcmn.Hash {
-	store := prefix.NewStore(csdb.ctx.KVStore(csdb.storeKey), KeyPrefixHeightToHeaderHash)
-	key := sdk.Uint64ToBigEndian(height)
-	bz := store.Get(key)
-	if len(bz) == 0 {
-		return ethcmn.Hash{}
-	}
-
-	return ethcmn.BytesToHash(bz)
-}
-
-// GetParams returns the total set of evm parameters.
-func (csdb *CommitStateDB) GetParams() (params Params) {
-	csdb.paramSpace.GetParamSet(csdb.ctx, &params)
-	return params
-}
-
-// GetBalance retrieves the balance from the given address or 0 if object not
-// found.
-func (csdb *CommitStateDB) GetBalance(addr ethcmn.Address) *big.Int {
-	so := csdb.getStateObject(addr)
-	if so != nil {
-		return so.Balance()
-	}
-
-	return zeroBalance
-}
-
-// GetNonce returns the nonce (sequence number) for a given account.
-func (csdb *CommitStateDB) GetNonce(addr ethcmn.Address) uint64 {
-	so := csdb.getStateObject(addr)
-	if so != nil {
-		return so.Nonce()
-	}
-
-	return 0
-}
-
-// TxIndex returns the current transaction index set by Prepare.
-func (csdb *CommitStateDB) TxIndex() int {
-	return csdb.txIndex
-}
-
-// BlockHash returns the current block hash set by Prepare.
-func (csdb *CommitStateDB) BlockHash() ethcmn.Hash {
-	return csdb.bhash
-}
-
-// GetCode returns the code for a given account.
-func (csdb *CommitStateDB) GetCode(addr ethcmn.Address) []byte {
-	so := csdb.getStateObject(addr)
-	if so != nil {
-		return so.Code(nil)
-	}
-
-	return nil
-}
-
-// GetCodeSize returns the code size for a given account.
-func (csdb *CommitStateDB) GetCodeSize(addr ethcmn.Address) int {
-	so := csdb.getStateObject(addr)
-	if so == nil {
-		return 0
-	}
-
-	if so.code != nil {
-		return len(so.code)
-	}
-
-	return len(so.Code(nil))
-}
-
-// GetCodeHash returns the code hash for a given account.
-func (csdb *CommitStateDB) GetCodeHash(addr ethcmn.Address) ethcmn.Hash {
-	so := csdb.getStateObject(addr)
-	if so == nil {
-		return ethcmn.Hash{}
-	}
-
-	return ethcmn.BytesToHash(so.CodeHash())
-}
-
-// GetState retrieves a value from the given account's storage store.
-func (csdb *CommitStateDB) GetState(addr ethcmn.Address, hash ethcmn.Hash) ethcmn.Hash {
-	so := csdb.getStateObject(addr)
-	if so != nil {
-		return so.GetState(nil, hash)
-	}
-
-	return ethcmn.Hash{}
-}
-
-// GetCommittedState retrieves a value from the given account's committed
-// storage.
-func (csdb *CommitStateDB) GetCommittedState(addr ethcmn.Address, hash ethcmn.Hash) ethcmn.Hash {
-	so := csdb.getStateObject(addr)
-	if so != nil {
-		return so.GetCommittedState(nil, hash)
-	}
-
-	return ethcmn.Hash{}
-}
-
-// GetLogs returns the current logs for a given transaction hash from the KVStore.
-func (csdb *CommitStateDB) GetLogs(hash ethcmn.Hash) ([]*ethtypes.Log, error) {
-	store := prefix.NewStore(csdb.ctx.KVStore(csdb.storeKey), KeyPrefixLogs)
-	bz := store.Get(hash.Bytes())
-	if len(bz) == 0 {
-		// return nil error if logs are not found
-		return []*ethtypes.Log{}, nil
-	}
-
-	var txLogs TransactionLogs
-	if err := ModuleCdc.UnmarshalBinaryBare(bz, &txLogs); err != nil {
-		return []*ethtypes.Log{}, err
-	}
-
-	allLogs := []*ethtypes.Log{}
-	for _, txLog := range txLogs.Logs {
-		allLogs = append(allLogs, txLog.ToEthereum())
-	}
-
-	return allLogs, nil
-}
-
-// AllLogs returns all the current logs in the state.
-func (csdb *CommitStateDB) AllLogs() []*ethtypes.Log {
-	store := csdb.ctx.KVStore(csdb.storeKey)
-	iterator := sdk.KVStorePrefixIterator(store, KeyPrefixLogs)
-	defer iterator.Close()
-
-	allLogs := []*ethtypes.Log{}
-	for ; iterator.Valid(); iterator.Next() {
-		var txLogs TransactionLogs
-		ModuleCdc.MustUnmarshalBinaryBare(iterator.Value(), &txLogs)
-
-		for _, txLog := range txLogs.Logs {
-			allLogs = append(allLogs, txLog.ToEthereum())
-		}
-	}
-
-	return allLogs
-}
-
-// GetRefund returns the current value of the refund counter.
-func (csdb *CommitStateDB) GetRefund() uint64 {
-	return csdb.refund
-}
-
-// Preimages returns a list of SHA3 preimages that have been submitted.
-func (csdb *CommitStateDB) Preimages() map[ethcmn.Hash][]byte {
-	preimages := map[ethcmn.Hash][]byte{}
-
-	for _, pe := range csdb.preimages {
-		preimages[pe.hash] = pe.preimage
-	}
-	return preimages
-}
-
-// HasSuicided returns if the given account for the specified address has been
-// killed.
-func (csdb *CommitStateDB) HasSuicided(addr ethcmn.Address) bool {
-	so := csdb.getStateObject(addr)
-	if so != nil {
-		return so.suicided
-	}
-
-	return false
-}
-
-// StorageTrie returns nil as the state in Ethermint does not use a direct
-// storage trie.
-func (csdb *CommitStateDB) StorageTrie(addr ethcmn.Address) ethstate.Trie {
-	return nil
-}
-
-// ----------------------------------------------------------------------------
-// Persistence
-// ----------------------------------------------------------------------------
-
-// Commit writes the state to the appropriate KVStores. For each state object
-// in the cache, it will either be removed, or have it's code set and/or it's
-// state (storage) updated. In addition, the state object (account) itself will
-// be written. Finally, the root hash (version) will be returned.
-func (csdb *CommitStateDB) Commit(deleteEmptyObjects bool) (ethcmn.Hash, error) {
-	defer csdb.clearJournalAndRefund()
-
-	// remove dirty state object entries based on the journal
-	for _, dirty := range csdb.journal.dirties {
-		csdb.stateObjectsDirty[dirty.address] = struct{}{}
-	}
-
-	// set the state objects
-	for _, stateEntry := range csdb.stateObjects {
-		_, isDirty := csdb.stateObjectsDirty[stateEntry.address]
-
-		switch {
-		case stateEntry.stateObject.suicided || (isDirty && deleteEmptyObjects && stateEntry.stateObject.empty()):
-			// If the state object has been removed, don't bother syncing it and just
-			// remove it from the store.
-			csdb.deleteStateObject(stateEntry.stateObject)
-
-		case isDirty:
-			// write any contract code associated with the state object
-			if stateEntry.stateObject.code != nil && stateEntry.stateObject.dirtyCode {
-				stateEntry.stateObject.commitCode()
-				stateEntry.stateObject.dirtyCode = false
-			}
-
-			// update the object in the KVStore
-			if err := csdb.updateStateObject(stateEntry.stateObject); err != nil {
-				return ethcmn.Hash{}, err
-			}
-		}
-
-		delete(csdb.stateObjectsDirty, stateEntry.address)
-	}
-
-	// NOTE: Ethereum returns the trie merkle root here, but as commitment
-	// actually happens in the BaseApp at EndBlocker, we do not know the root at
-	// this time.
-	return ethcmn.Hash{}, nil
-}
-
-// Finalise finalizes the state objects (accounts) state by setting their state,
-// removing the csdb destructed objects and clearing the journal as well as the
-// refunds.
-func (csdb *CommitStateDB) Finalise(deleteEmptyObjects bool) error {
-	for _, dirty := range csdb.journal.dirties {
-		idx, exist := csdb.addressToObjectIndex[dirty.address]
-		if !exist {
-			// ripeMD is 'touched' at block 1714175, in tx:
-			// 0x1237f737031e40bcde4a8b7e717b2d15e3ecadfe49bb1bbc71ee9deb09c6fcf2
-			//
-			// That tx goes out of gas, and although the notion of 'touched' does not
-			// exist there, the touch-event will still be recorded in the journal.
-			// Since ripeMD is a special snowflake, it will persist in the journal even
-			// though the journal is reverted. In this special circumstance, it may
-			// exist in journal.dirties but not in stateObjects. Thus, we can safely
-			// ignore it here.
-			continue
-		}
-
-		stateEntry := csdb.stateObjects[idx]
-		if stateEntry.stateObject.suicided || (deleteEmptyObjects && stateEntry.stateObject.empty()) {
-			csdb.deleteStateObject(stateEntry.stateObject)
-		} else {
-			// Set all the dirty state storage items for the state object in the
-			// KVStore and finally set the account in the account mapper.
-			stateEntry.stateObject.commitState()
-			if err := csdb.updateStateObject(stateEntry.stateObject); err != nil {
-				return err
-			}
-		}
-
-		csdb.stateObjectsDirty[dirty.address] = struct{}{}
-	}
-
-	// invalidate journal because reverting across transactions is not allowed
-	csdb.clearJournalAndRefund()
-	return nil
-}
-
-// IntermediateRoot returns the current root hash of the state. It is called in
-// between transactions to get the root hash that goes into transaction
-// receipts.
-//
-// NOTE: The SDK has not concept or method of getting any intermediate merkle
-// root as commitment of the merkle-ized tree doesn't happen until the
-// BaseApps' EndBlocker.
-func (csdb *CommitStateDB) IntermediateRoot(deleteEmptyObjects bool) (ethcmn.Hash, error) {
-	if err := csdb.Finalise(deleteEmptyObjects); err != nil {
-		return ethcmn.Hash{}, err
-	}
-
-	return ethcmn.Hash{}, nil
-}
-
-// updateStateObject writes the given state object to the store.
-func (csdb *CommitStateDB) updateStateObject(so *stateObject) error {
-	evmDenom := csdb.GetParams().EvmDenom
-	// NOTE: we don't use sdk.NewCoin here to avoid panic on test importer's genesis
-	newBalance := sdk.Coin{Denom: evmDenom, Amount: sdk.NewIntFromBigInt(so.Balance())}
-	if !newBalance.IsValid() {
-		return fmt.Errorf("invalid balance %s", newBalance)
-	}
-
-	err := csdb.bankKeeper.SetBalance(csdb.ctx, so.account.GetAddress(), newBalance)
-	if err != nil {
-		return err
-	}
-	csdb.accountKeeper.SetAccount(csdb.ctx, so.account)
-	return nil
-}
-
-// deleteStateObject removes the given state object from the state store.
-func (csdb *CommitStateDB) deleteStateObject(so *stateObject) {
-	so.deleted = true
-	csdb.accountKeeper.RemoveAccount(csdb.ctx, so.account)
-}
-
-// ----------------------------------------------------------------------------
-// Snapshotting
-// ----------------------------------------------------------------------------
-
-// Snapshot returns an identifier for the current revision of the state.
-func (csdb *CommitStateDB) Snapshot() int {
-	id := csdb.nextRevisionID
-	csdb.nextRevisionID++
-
-	csdb.validRevisions = append(
-		csdb.validRevisions,
-		revision{
-			id:           id,
-			journalIndex: csdb.journal.length(),
-		},
-	)
-
-	return id
-}
-
-// RevertToSnapshot reverts all state changes made since the given revision.
-func (csdb *CommitStateDB) RevertToSnapshot(revID int) {
-	// find the snapshot in the stack of valid snapshots
-	idx := sort.Search(len(csdb.validRevisions), func(i int) bool {
-		return csdb.validRevisions[i].id >= revID
-	})
-
-	if idx == len(csdb.validRevisions) || csdb.validRevisions[idx].id != revID {
-		panic(fmt.Errorf("revision ID %v cannot be reverted", revID))
-	}
-
-	snapshot := csdb.validRevisions[idx].journalIndex
-
-	// replay the journal to undo changes and remove invalidated snapshots
-	csdb.journal.revert(csdb, snapshot)
-	csdb.validRevisions = csdb.validRevisions[:idx]
-}
-
-// ----------------------------------------------------------------------------
-// Auxiliary
-// ----------------------------------------------------------------------------
-
-// Database retrieves the low level database supporting the lower level trie
-// ops. It is not used in Ethermint, so it returns nil.
-func (csdb *CommitStateDB) Database() ethstate.Database {
-	return nil
-}
-
-// Empty returns whether the state object is either non-existent or empty
-// according to the EIP161 specification (balance = nonce = code = 0).
-func (csdb *CommitStateDB) Empty(addr ethcmn.Address) bool {
-	so := csdb.getStateObject(addr)
-	return so == nil || so.empty()
-}
-
-// Exist reports whether the given account address exists in the state. Notably,
-// this also returns true for suicided accounts.
-func (csdb *CommitStateDB) Exist(addr ethcmn.Address) bool {
-	return csdb.getStateObject(addr) != nil
-}
-
-// Error returns the first non-nil error the StateDB encountered.
-func (csdb *CommitStateDB) Error() error {
-	return csdb.dbErr
-}
-
-// Suicide marks the given account as suicided and clears the account balance.
-//
-// The account's state object is still available until the state is committed,
-// getStateObject will return a non-nil account after Suicide.
-func (csdb *CommitStateDB) Suicide(addr ethcmn.Address) bool {
-	so := csdb.getStateObject(addr)
-	if so == nil {
-		return false
-	}
-
-	csdb.journal.append(suicideChange{
-		account:     &addr,
-		prev:        so.suicided,
-		prevBalance: sdk.NewIntFromBigInt(so.Balance()),
-	})
-
-	so.markSuicided()
-	so.SetBalance(new(big.Int))
-
-	return true
-}
-
-// Reset clears out all ephemeral state objects from the state db, but keeps
-// the underlying account mapper and store keys to avoid reloading data for the
-// next operations.
-func (csdb *CommitStateDB) Reset(_ ethcmn.Hash) error {
-	csdb.stateObjects = []stateEntry{}
-	csdb.addressToObjectIndex = make(map[ethcmn.Address]int)
-	csdb.stateObjectsDirty = make(map[ethcmn.Address]struct{})
-	csdb.thash = ethcmn.Hash{}
-	csdb.bhash = ethcmn.Hash{}
-	csdb.txIndex = 0
-	csdb.logSize = 0
-	csdb.preimages = []preimageEntry{}
-	csdb.hashToPreimageIndex = make(map[ethcmn.Hash]int)
-
-	csdb.clearJournalAndRefund()
-	return nil
-}
-
-// UpdateAccounts updates the nonce and coin balances of accounts
-func (csdb *CommitStateDB) UpdateAccounts() {
-	for _, stateEntry := range csdb.stateObjects {
-		address := sdk.AccAddress(stateEntry.address.Bytes())
-		currAccount := csdb.accountKeeper.GetAccount(csdb.ctx, address)
-		ethAcc, ok := currAccount.(*ethermint.EthAccount)
-		if !ok {
-			continue
-		}
-
-		evmDenom := csdb.GetParams().EvmDenom
-		balance := csdb.bankKeeper.GetBalance(csdb.ctx, address, evmDenom)
-
-		if stateEntry.stateObject.Balance() != balance.Amount.BigInt() && balance.IsValid() {
-			stateEntry.stateObject.balance = balance.Amount
-		}
-
-		if stateEntry.stateObject.Nonce() != ethAcc.GetSequence() {
-			stateEntry.stateObject.account = ethAcc
-		}
-	}
-}
-
-// ClearStateObjects clears cache of state objects to handle account changes outside of the EVM
-func (csdb *CommitStateDB) ClearStateObjects() {
-	csdb.stateObjects = []stateEntry{}
-	csdb.addressToObjectIndex = make(map[ethcmn.Address]int)
-	csdb.stateObjectsDirty = make(map[ethcmn.Address]struct{})
-}
-
-func (csdb *CommitStateDB) clearJournalAndRefund() {
-	csdb.journal = newJournal()
-	csdb.validRevisions = csdb.validRevisions[:0]
-	csdb.refund = 0
-}
-
-// Prepare sets the current transaction hash and index and block hash which is
-// used when the EVM emits new state logs.
-func (csdb *CommitStateDB) Prepare(thash, bhash ethcmn.Hash, txi int) {
-	csdb.thash = thash
-	csdb.bhash = bhash
-	csdb.txIndex = txi
-}
-
-// CreateAccount explicitly creates a state object. If a state object with the
-// address already exists the balance is carried over to the new account.
-//
-// CreateAccount is called during the EVM CREATE operation. The situation might
-// arise that a contract does the following:
-//
-//   1. sends funds to sha(account ++ (nonce + 1))
-//   2. tx_create(sha(account ++ nonce)) (note that this gets the address of 1)
-//
-// Carrying over the balance ensures that Ether doesn't disappear.
-func (csdb *CommitStateDB) CreateAccount(addr ethcmn.Address) {
-	newobj, prevobj := csdb.createObject(addr)
-	if prevobj != nil {
-		newobj.setBalance(sdk.NewIntFromBigInt(prevobj.Balance()))
-	}
-}
-
-// Copy creates a deep, independent copy of the state.
-//
-// NOTE: Snapshots of the copied state cannot be applied to the copy.
-func (csdb *CommitStateDB) Copy() *CommitStateDB {
-
-	// copy all the basic fields, initialize the memory ones
-	state := &CommitStateDB{}
-	CopyCommitStateDB(csdb, state)
-
-	return state
-}
-
-func CopyCommitStateDB(from, to *CommitStateDB) {
-	from.lock.Lock()
-	defer from.lock.Unlock()
-
-	to.ctx = from.ctx
-	to.storeKey = from.storeKey
-	to.paramSpace = from.paramSpace
-	to.accountKeeper = from.accountKeeper
-	to.bankKeeper = from.bankKeeper
-	to.stateObjects = []stateEntry{}
-	to.addressToObjectIndex = make(map[ethcmn.Address]int)
-	to.stateObjectsDirty = make(map[ethcmn.Address]struct{})
-	to.refund = from.refund
-	to.logSize = from.logSize
-	to.preimages = make([]preimageEntry, len(from.preimages))
-	to.hashToPreimageIndex = make(map[ethcmn.Hash]int, len(from.hashToPreimageIndex))
-	to.journal = newJournal()
-	to.thash = from.thash
-	to.bhash = from.bhash
-	to.txIndex = from.txIndex
-	validRevisions := make([]revision, len(from.validRevisions))
-	copy(validRevisions, from.validRevisions)
-	to.validRevisions = validRevisions
-	to.nextRevisionID = from.nextRevisionID
-
-	// copy the dirty states, logs, and preimages
-	for _, dirty := range from.journal.dirties {
-		// There is a case where an object is in the journal but not in the
-		// stateObjects: OOG after touch on ripeMD prior to Byzantium. Thus, we
-		// need to check for nil.
-		//
-		// Ref: https://github.com/ethereum/go-ethereum/pull/16485#issuecomment-380438527
-		if idx, exist := from.addressToObjectIndex[dirty.address]; exist {
-			to.stateObjects = append(to.stateObjects, stateEntry{
-				address:     dirty.address,
-				stateObject: from.stateObjects[idx].stateObject.deepCopy(to),
-			})
-			to.addressToObjectIndex[dirty.address] = len(to.stateObjects) - 1
-			to.stateObjectsDirty[dirty.address] = struct{}{}
-		}
-	}
-
-	// Above, we don't copy the actual journal. This means that if the copy is
-	// copied, the loop above will be a no-op, since the copy's journal is empty.
-	// Thus, here we iterate over stateObjects, to enable copies of copies.
-	for addr := range from.stateObjectsDirty {
-		if idx, exist := to.addressToObjectIndex[addr]; !exist {
-			to.setStateObject(from.stateObjects[idx].stateObject.deepCopy(to))
-			to.stateObjectsDirty[addr] = struct{}{}
-		}
-	}
-
-	// copy pre-images
-	for i, preimageEntry := range from.preimages {
-		to.preimages[i] = preimageEntry
-		to.hashToPreimageIndex[preimageEntry.hash] = i
-	}
-}
-
-// ForEachStorage iterates over each storage items, all invoke the provided
-// callback on each key, value pair.
-func (csdb *CommitStateDB) ForEachStorage(addr ethcmn.Address, cb func(key, value ethcmn.Hash) (stop bool)) error {
-	so := csdb.getStateObject(addr)
-	if so == nil {
-		return nil
-	}
-
-	store := csdb.ctx.KVStore(csdb.storeKey)
-	prefix := AddressStoragePrefix(so.Address())
-	iterator := sdk.KVStorePrefixIterator(store, prefix)
-	defer iterator.Close()
-
-	for ; iterator.Valid(); iterator.Next() {
-		key := ethcmn.BytesToHash(iterator.Key())
-		value := ethcmn.BytesToHash(iterator.Value())
-
-		if idx, dirty := so.keyToDirtyStorageIndex[key]; dirty {
-			// check if iteration stops
-			if cb(key, ethcmn.HexToHash(so.dirtyStorage[idx].Value)) {
-				break
-			}
-
-			continue
-		}
-
-		// check if iteration stops
-		if cb(key, value) {
-			return nil
-		}
-	}
-
-	return nil
-}
-
-// GetOrNewStateObject retrieves a state object or create a new state object if
-// nil.
-func (csdb *CommitStateDB) GetOrNewStateObject(addr ethcmn.Address) StateObject {
-	so := csdb.getStateObject(addr)
-	if so == nil || so.deleted {
-		so, _ = csdb.createObject(addr)
-	}
-
-	return so
-}
-
-// createObject creates a new state object. If there is an existing account with
-// the given address, it is overwritten and returned as the second return value.
-func (csdb *CommitStateDB) createObject(addr ethcmn.Address) (newObj, prevObj *stateObject) {
-	prevObj = csdb.getStateObject(addr)
-
-	acc := csdb.accountKeeper.NewAccountWithAddress(csdb.ctx, sdk.AccAddress(addr.Bytes()))
-
-	newObj = newStateObject(csdb, acc, sdk.ZeroInt())
-	newObj.setNonce(0) // sets the object to dirty
-
-	if prevObj == nil {
-		csdb.journal.append(createObjectChange{account: &addr})
-	} else {
-		csdb.journal.append(resetObjectChange{prev: prevObj})
-	}
-
-	csdb.setStateObject(newObj)
-	return newObj, prevObj
-}
-
-// setError remembers the first non-nil error it is called with.
-func (csdb *CommitStateDB) setError(err error) {
-	if csdb.dbErr == nil {
-		csdb.dbErr = err
-	}
-}
-
-// getStateObject attempts to retrieve a state object given by the address.
-// Returns nil and sets an error if not found.
-func (csdb *CommitStateDB) getStateObject(addr ethcmn.Address) (stateObject *stateObject) {
-	if idx, found := csdb.addressToObjectIndex[addr]; found {
-		// prefer 'live' (cached) objects
-		if so := csdb.stateObjects[idx].stateObject; so != nil {
-			if so.deleted {
-				return nil
-			}
-
-			return so
-		}
-	}
-
-	// otherwise, attempt to fetch the account from the account mapper
-	acc := csdb.accountKeeper.GetAccount(csdb.ctx, sdk.AccAddress(addr.Bytes()))
-	if acc == nil {
-		csdb.setError(fmt.Errorf("no account found for address: %s", addr.String()))
-		return nil
-	}
-
-	evmDenom := csdb.GetParams().EvmDenom
-	balance := csdb.bankKeeper.GetBalance(csdb.ctx, acc.GetAddress(), evmDenom)
-
-	// insert the state object into the live set
-	so := newStateObject(csdb, acc, balance.Amount)
-	csdb.setStateObject(so)
-
-	return so
-}
-
-func (csdb *CommitStateDB) setStateObject(so *stateObject) {
-	if idx, found := csdb.addressToObjectIndex[so.Address()]; found {
-		// update the existing object
-		csdb.stateObjects[idx].stateObject = so
-		return
-	}
-
-	// append the new state object to the stateObjects slice
-	se := stateEntry{
-		address:     so.Address(),
-		stateObject: so,
-	}
-
-	csdb.stateObjects = append(csdb.stateObjects, se)
-	csdb.addressToObjectIndex[se.address] = len(csdb.stateObjects) - 1
-}
-
-// RawDump returns a raw state dump.
-//
-// TODO: Implement if we need it, especially for the RPC API.
-func (csdb *CommitStateDB) RawDump() ethstate.Dump {
-	return ethstate.Dump{}
-}
-
-type preimageEntry struct {
-	// hash key of the preimage entry
-	hash     ethcmn.Hash
-	preimage []byte
-}

x/evm/types/statedb_test.go

@@ -1,739 +0,0 @@
-package types_test
-
-import (
-	"fmt"
-	"math/big"
-	"testing"
-
-	"github.com/stretchr/testify/suite"
-
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
-
-	ethcmn "github.com/ethereum/go-ethereum/common"
-	ethtypes "github.com/ethereum/go-ethereum/core/types"
-	ethcrypto "github.com/ethereum/go-ethereum/crypto"
-
-	"github.com/cosmos/ethermint/app"
-	"github.com/cosmos/ethermint/crypto/ethsecp256k1"
-	ethermint "github.com/cosmos/ethermint/types"
-	"github.com/cosmos/ethermint/x/evm/types"
-
-	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
-)
-
-type StateDBTestSuite struct {
-	suite.Suite
-
-	ctx         sdk.Context
-	app         *app.EthermintApp
-	stateDB     *types.CommitStateDB
-	address     ethcmn.Address
-	stateObject types.StateObject
-}
-
-func TestStateDBTestSuite(t *testing.T) {
-	suite.Run(t, new(StateDBTestSuite))
-}
-
-func (suite *StateDBTestSuite) SetupTest() {
-	checkTx := false
-
-	suite.app = app.Setup(checkTx)
-	suite.ctx = suite.app.BaseApp.NewContext(checkTx, tmproto.Header{Height: 1})
-	suite.stateDB = suite.app.EvmKeeper.CommitStateDB.WithContext(suite.ctx)
-
-	privkey, err := ethsecp256k1.GenerateKey()
-	suite.Require().NoError(err)
-
-	suite.address = ethcmn.BytesToAddress(privkey.PubKey().Address().Bytes())
-
-	balance := ethermint.NewPhotonCoin(sdk.ZeroInt())
-	acc := &ethermint.EthAccount{
-		BaseAccount: authtypes.NewBaseAccount(sdk.AccAddress(suite.address.Bytes()), nil, 0, 0),
-		CodeHash:    ethcrypto.Keccak256(nil),
-	}
-
-	suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
-	err = suite.app.BankKeeper.SetBalance(suite.ctx, acc.GetAddress(), balance)
-	suite.Require().NoError(err)
-
-	suite.stateObject = suite.stateDB.GetOrNewStateObject(suite.address)
-}
-
-func (suite *StateDBTestSuite) TestParams() {
-	params := suite.stateDB.GetParams()
-	suite.Require().Equal(types.DefaultParams(), params)
-	params.EvmDenom = "inj"
-	suite.stateDB.SetParams(params)
-	newParams := suite.stateDB.GetParams()
-	suite.Require().Equal(newParams, params)
-}
-
-func (suite *StateDBTestSuite) TestBloomFilter() {
-	// Prepare db for logs
-	tHash := ethcmn.BytesToHash([]byte{0x1})
-	suite.stateDB.Prepare(tHash, ethcmn.Hash{}, 0)
-	contractAddress := ethcmn.BigToAddress(big.NewInt(1))
-	log := ethtypes.Log{Address: contractAddress}
-
-	testCase := []struct {
-		name     string
-		malleate func()
-		numLogs  int
-		isBloom  bool
-	}{
-		{
-			"no logs",
-			func() {},
-			0,
-			false,
-		},
-		{
-			"add log",
-			func() {
-				suite.stateDB.AddLog(&log)
-			},
-			1,
-			false,
-		},
-		{
-			"bloom",
-			func() {},
-			0,
-			true,
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-		logs, err := suite.stateDB.GetLogs(tHash)
-		if !tc.isBloom {
-			suite.Require().NoError(err, tc.name)
-			suite.Require().Len(logs, tc.numLogs, tc.name)
-			if len(logs) != 0 {
-				suite.Require().Equal(log, *logs[0], tc.name)
-			}
-		} else {
-			// get logs bloom from the log
-			bloomInt := ethtypes.LogsBloom(logs)
-			bloomFilter := ethtypes.BytesToBloom(bloomInt)
-			suite.Require().True(ethtypes.BloomLookup(bloomFilter, contractAddress), tc.name)
-			suite.Require().False(ethtypes.BloomLookup(bloomFilter, ethcmn.BigToAddress(big.NewInt(2))), tc.name)
-		}
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Balance() {
-	testCase := []struct {
-		name     string
-		malleate func()
-		balance  *big.Int
-	}{
-		{
-			"set balance",
-			func() {
-				suite.stateDB.SetBalance(suite.address, big.NewInt(100))
-			},
-			big.NewInt(100),
-		},
-		{
-			"sub balance",
-			func() {
-				suite.stateDB.SubBalance(suite.address, big.NewInt(100))
-			},
-			big.NewInt(0),
-		},
-		{
-			"add balance",
-			func() {
-				suite.stateDB.AddBalance(suite.address, big.NewInt(200))
-			},
-			big.NewInt(200),
-		},
-		{
-			"sub more than balance",
-			func() {
-				suite.stateDB.SubBalance(suite.address, big.NewInt(300))
-			},
-			big.NewInt(-100),
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-		suite.Require().Equal(tc.balance, suite.stateDB.GetBalance(suite.address), tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateDBNonce() {
-	nonce := uint64(123)
-	suite.stateDB.SetNonce(suite.address, nonce)
-	suite.Require().Equal(nonce, suite.stateDB.GetNonce(suite.address))
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Error() {
-	nonce := suite.stateDB.GetNonce(ethcmn.Address{})
-	suite.Require().Equal(0, int(nonce))
-	suite.Require().Error(suite.stateDB.Error())
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Database() {
-	suite.Require().Nil(suite.stateDB.Database())
-}
-
-func (suite *StateDBTestSuite) TestStateDB_State() {
-	key := ethcmn.BytesToHash([]byte("foo"))
-	val := ethcmn.BytesToHash([]byte("bar"))
-	suite.stateDB.SetState(suite.address, key, val)
-
-	testCase := []struct {
-		name    string
-		address ethcmn.Address
-		key     ethcmn.Hash
-		value   ethcmn.Hash
-	}{
-		{
-			"found state",
-			suite.address,
-			ethcmn.BytesToHash([]byte("foo")),
-			ethcmn.BytesToHash([]byte("bar")),
-		},
-		{
-			"state not found",
-			suite.address,
-			ethcmn.BytesToHash([]byte("key")),
-			ethcmn.Hash{},
-		},
-		{
-			"object not found",
-			ethcmn.Address{},
-			ethcmn.BytesToHash([]byte("foo")),
-			ethcmn.Hash{},
-		},
-	}
-	for _, tc := range testCase {
-		value := suite.stateDB.GetState(tc.address, tc.key)
-		suite.Require().Equal(tc.value, value, tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Code() {
-	testCase := []struct {
-		name     string
-		address  ethcmn.Address
-		code     []byte
-		malleate func()
-	}{
-		{
-			"no stored code for state object",
-			suite.address,
-			nil,
-			func() {},
-		},
-		{
-			"existing address",
-			suite.address,
-			[]byte("code"),
-			func() {
-				suite.stateDB.SetCode(suite.address, []byte("code"))
-			},
-		},
-		{
-			"state object not found",
-			ethcmn.Address{},
-			nil,
-			func() {},
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-
-		suite.Require().Equal(tc.code, suite.stateDB.GetCode(tc.address), tc.name)
-		suite.Require().Equal(len(tc.code), suite.stateDB.GetCodeSize(tc.address), tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Logs() {
-	testCase := []struct {
-		name string
-		log  ethtypes.Log
-	}{
-		{
-			"state db log",
-			ethtypes.Log{
-				Address:     suite.address,
-				Topics:      []ethcmn.Hash{ethcmn.BytesToHash([]byte("topic"))},
-				Data:        []byte("data"),
-				BlockNumber: 1,
-				TxHash:      ethcmn.Hash{},
-				TxIndex:     1,
-				BlockHash:   ethcmn.Hash{},
-				Index:       0,
-				Removed:     false,
-			},
-		},
-	}
-
-	for _, tc := range testCase {
-		hash := ethcmn.BytesToHash([]byte("hash"))
-		logs := []*ethtypes.Log{&tc.log}
-
-		err := suite.stateDB.SetLogs(hash, logs)
-		suite.Require().NoError(err, tc.name)
-		dbLogs, err := suite.stateDB.GetLogs(hash)
-		suite.Require().NoError(err, tc.name)
-		suite.Require().Equal(logs, dbLogs, tc.name)
-
-		suite.stateDB.DeleteLogs(hash)
-		dbLogs, err = suite.stateDB.GetLogs(hash)
-		suite.Require().NoError(err, tc.name)
-		suite.Require().Empty(dbLogs, tc.name)
-
-		suite.stateDB.AddLog(&tc.log)
-		suite.Require().Equal(logs, suite.stateDB.AllLogs(), tc.name)
-
-		//resets state but checking to see if storekey still persists.
-		err = suite.stateDB.Reset(hash)
-		suite.Require().NoError(err, tc.name)
-		suite.Require().Equal(logs, suite.stateDB.AllLogs(), tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Preimage() {
-	hash := ethcmn.BytesToHash([]byte("hash"))
-	preimage := []byte("preimage")
-
-	suite.stateDB.AddPreimage(hash, preimage)
-	suite.Require().Equal(preimage, suite.stateDB.Preimages()[hash])
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Refund() {
-	testCase := []struct {
-		name      string
-		addAmount uint64
-		subAmount uint64
-		expRefund uint64
-		expPanic  bool
-	}{
-		{
-			"refund 0",
-			0, 0, 0,
-			false,
-		},
-		{
-			"refund positive amount",
-			100, 0, 100,
-			false,
-		},
-		{
-			"refund panic",
-			100, 200, 100,
-			true,
-		},
-	}
-
-	for _, tc := range testCase {
-		suite.Run(tc.name, func() {
-			suite.SetupTest() // reset
-
-			suite.stateDB.AddRefund(tc.addAmount)
-			suite.Require().Equal(tc.addAmount, suite.stateDB.GetRefund())
-
-			if tc.expPanic {
-				suite.Panics(func() {
-					suite.stateDB.SubRefund(tc.subAmount)
-				})
-			} else {
-				suite.stateDB.SubRefund(tc.subAmount)
-				suite.Require().Equal(tc.expRefund, suite.stateDB.GetRefund())
-			}
-		})
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateDB_CreateAccount() {
-	prevBalance := big.NewInt(12)
-
-	testCase := []struct {
-		name     string
-		address  ethcmn.Address
-		malleate func()
-	}{
-		{
-			"existing account",
-			suite.address,
-			func() {
-				suite.stateDB.AddBalance(suite.address, prevBalance)
-			},
-		},
-		{
-			"new account",
-			ethcmn.HexToAddress("0x756F45E3FA69347A9A973A725E3C98bC4db0b4c1"),
-			func() {
-				prevBalance = big.NewInt(0)
-			},
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-
-		suite.stateDB.CreateAccount(tc.address)
-		suite.Require().True(suite.stateDB.Exist(tc.address), tc.name)
-		suite.Require().Equal(prevBalance, suite.stateDB.GetBalance(tc.address), tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestStateDB_ClearStateObj() {
-	priv, err := ethsecp256k1.GenerateKey()
-	suite.Require().NoError(err)
-
-	addr := ethcrypto.PubkeyToAddress(priv.ToECDSA().PublicKey)
-
-	suite.stateDB.CreateAccount(addr)
-	suite.Require().True(suite.stateDB.Exist(addr))
-
-	suite.stateDB.ClearStateObjects()
-	suite.Require().False(suite.stateDB.Exist(addr))
-}
-
-func (suite *StateDBTestSuite) TestStateDB_Reset() {
-	priv, err := ethsecp256k1.GenerateKey()
-	suite.Require().NoError(err)
-
-	addr := ethcrypto.PubkeyToAddress(priv.ToECDSA().PublicKey)
-
-	suite.stateDB.CreateAccount(addr)
-	suite.Require().True(suite.stateDB.Exist(addr))
-
-	err = suite.stateDB.Reset(ethcmn.BytesToHash(nil))
-	suite.Require().NoError(err)
-	suite.Require().False(suite.stateDB.Exist(addr))
-}
-
-func (suite *StateDBTestSuite) TestSuiteDB_Prepare() {
-	thash := ethcmn.BytesToHash([]byte("thash"))
-	bhash := ethcmn.BytesToHash([]byte("bhash"))
-	txi := 1
-
-	suite.stateDB.Prepare(thash, bhash, txi)
-
-	suite.Require().Equal(txi, suite.stateDB.TxIndex())
-	suite.Require().Equal(bhash, suite.stateDB.BlockHash())
-}
-
-func (suite *StateDBTestSuite) TestSuiteDB_CopyState() {
-	testCase := []struct {
-		name string
-		log  ethtypes.Log
-	}{
-		{
-			"copy state",
-			ethtypes.Log{
-				Address:     suite.address,
-				Topics:      []ethcmn.Hash{ethcmn.BytesToHash([]byte("topic"))},
-				Data:        []byte("data"),
-				BlockNumber: 1,
-				TxHash:      ethcmn.Hash{},
-				TxIndex:     1,
-				BlockHash:   ethcmn.Hash{},
-				Index:       0,
-				Removed:     false,
-			},
-		},
-	}
-
-	for _, tc := range testCase {
-		hash := ethcmn.BytesToHash([]byte("hash"))
-		logs := []*ethtypes.Log{&tc.log}
-
-		err := suite.stateDB.SetLogs(hash, logs)
-		suite.Require().NoError(err, tc.name)
-
-		copyDB := suite.stateDB.Copy()
-
-		copiedDBLogs, err := copyDB.GetLogs(hash)
-		suite.Require().NoError(err, tc.name)
-		suite.Require().Equal(logs, copiedDBLogs, tc.name)
-		suite.Require().Equal(suite.stateDB.Exist(suite.address), copyDB.Exist(suite.address), tc.name)
-	}
-}
-
-func (suite *StateDBTestSuite) TestSuiteDB_Empty() {
-	suite.Require().True(suite.stateDB.Empty(suite.address))
-
-	suite.stateDB.SetBalance(suite.address, big.NewInt(100))
-	suite.Require().False(suite.stateDB.Empty(suite.address))
-}
-
-func (suite *StateDBTestSuite) TestSuiteDB_Suicide() {
-	testCase := []struct {
-		name    string
-		amount  *big.Int
-		expPass bool
-		delete  bool
-	}{
-		{
-			"suicide zero balance",
-			big.NewInt(0),
-			false, false,
-		},
-		{
-			"suicide with balance",
-			big.NewInt(100),
-			true, false,
-		},
-		{
-			"delete",
-			big.NewInt(0),
-			true, true,
-		},
-	}
-
-	for _, tc := range testCase {
-		if tc.delete {
-			_, err := suite.stateDB.Commit(tc.delete)
-			suite.Require().NoError(err, tc.name)
-			suite.Require().False(suite.stateDB.Exist(suite.address), tc.name)
-			continue
-		}
-
-		if tc.expPass {
-			suite.stateDB.SetBalance(suite.address, tc.amount)
-			suicide := suite.stateDB.Suicide(suite.address)
-			suite.Require().True(suicide, tc.name)
-			suite.Require().True(suite.stateDB.HasSuicided(suite.address), tc.name)
-		} else {
-			//Suicide only works for an account with non-zero balance/nonce
-			priv, err := ethsecp256k1.GenerateKey()
-			suite.Require().NoError(err)
-
-			addr := ethcrypto.PubkeyToAddress(priv.ToECDSA().PublicKey)
-			suicide := suite.stateDB.Suicide(addr)
-			suite.Require().False(suicide, tc.name)
-			suite.Require().False(suite.stateDB.HasSuicided(addr), tc.name)
-		}
-	}
-}
-
-func (suite *StateDBTestSuite) TestCommitStateDB_Commit() {
-	testCase := []struct {
-		name       string
-		malleate   func()
-		deleteObjs bool
-		expPass    bool
-	}{
-		{
-			"commit suicided",
-			func() {
-				ok := suite.stateDB.Suicide(suite.address)
-				suite.Require().True(ok)
-			},
-			true, true,
-		},
-		{
-			"commit with dirty value",
-			func() {
-				suite.stateDB.SetCode(suite.address, []byte("code"))
-			},
-			false, true,
-		},
-		{
-			"faled to update state object",
-			func() {
-				suite.stateDB.SubBalance(suite.address, big.NewInt(10))
-			},
-			false, false,
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-
-		hash, err := suite.stateDB.Commit(tc.deleteObjs)
-		suite.Require().Equal(ethcmn.Hash{}, hash)
-
-		if !tc.expPass {
-			suite.Require().Error(err, tc.name)
-			continue
-		}
-
-		suite.Require().NoError(err, tc.name)
-		acc := suite.app.AccountKeeper.GetAccount(suite.ctx, sdk.AccAddress(suite.address.Bytes()))
-
-		if tc.deleteObjs {
-			suite.Require().Nil(acc, tc.name)
-			continue
-		}
-
-		suite.Require().NotNil(acc, tc.name)
-		ethAcc, ok := acc.(*ethermint.EthAccount)
-		suite.Require().True(ok)
-		suite.Require().Equal(ethcrypto.Keccak256([]byte("code")), ethAcc.CodeHash)
-	}
-}
-
-func (suite *StateDBTestSuite) TestCommitStateDB_Finalize() {
-	testCase := []struct {
-		name       string
-		malleate   func()
-		deleteObjs bool
-		expPass    bool
-	}{
-		{
-			"finalize suicided",
-			func() {
-				ok := suite.stateDB.Suicide(suite.address)
-				suite.Require().True(ok)
-			},
-			true, true,
-		},
-		{
-			"finalize, not suicided",
-			func() {
-				suite.stateDB.AddBalance(suite.address, big.NewInt(5))
-			},
-			false, true,
-		},
-		{
-			"finalize, dirty storage",
-			func() {
-				suite.stateDB.SetState(suite.address, ethcmn.BytesToHash([]byte("key")), ethcmn.BytesToHash([]byte("value")))
-			},
-			false, true,
-		},
-		{
-			"faled to update state object",
-			func() {
-				suite.stateDB.SubBalance(suite.address, big.NewInt(10))
-			},
-			false, false,
-		},
-	}
-
-	for _, tc := range testCase {
-		tc.malleate()
-
-		err := suite.stateDB.Finalise(tc.deleteObjs)
-
-		if !tc.expPass {
-			suite.Require().Error(err, tc.name)
-			hash := suite.stateDB.GetCommittedState(suite.address, ethcmn.BytesToHash([]byte("key")))
-			suite.Require().NotEqual(ethcmn.Hash{}, hash, tc.name)
-			continue
-		}
-
-		suite.Require().NoError(err, tc.name)
-		acc := suite.app.AccountKeeper.GetAccount(suite.ctx, sdk.AccAddress(suite.address.Bytes()))
-
-		if tc.deleteObjs {
-			suite.Require().Nil(acc, tc.name)
-			continue
-		}
-
-		suite.Require().NotNil(acc, tc.name)
-	}
-}
-func (suite *StateDBTestSuite) TestCommitStateDB_GetCommittedState() {
-	hash := suite.stateDB.GetCommittedState(ethcmn.Address{}, ethcmn.BytesToHash([]byte("key")))
-	suite.Require().Equal(ethcmn.Hash{}, hash)
-}
-
-func (suite *StateDBTestSuite) TestCommitStateDB_Snapshot() {
-	id := suite.stateDB.Snapshot()
-	suite.Require().NotPanics(func() {
-		suite.stateDB.RevertToSnapshot(id)
-	})
-
-	suite.Require().Panics(func() {
-		suite.stateDB.RevertToSnapshot(-1)
-	}, "invalid revision should panic")
-}
-
-func (suite *StateDBTestSuite) TestCommitStateDB_ForEachStorage() {
-	var storage types.Storage
-
-	testCase := []struct {
-		name      string
-		malleate  func()
-		callback  func(key, value ethcmn.Hash) (stop bool)
-		expValues []ethcmn.Hash
-	}{
-		{
-			"aggregate state",
-			func() {
-				for i := 0; i < 5; i++ {
-					suite.stateDB.SetState(suite.address, ethcmn.BytesToHash([]byte(fmt.Sprintf("key%d", i))), ethcmn.BytesToHash([]byte(fmt.Sprintf("value%d", i))))
-				}
-			},
-			func(key, value ethcmn.Hash) bool {
-				storage = append(storage, types.NewState(key, value))
-				return false
-			},
-			[]ethcmn.Hash{
-				ethcmn.BytesToHash([]byte("value0")),
-				ethcmn.BytesToHash([]byte("value1")),
-				ethcmn.BytesToHash([]byte("value2")),
-				ethcmn.BytesToHash([]byte("value3")),
-				ethcmn.BytesToHash([]byte("value4")),
-			},
-		},
-		{
-			"filter state",
-			func() {
-				suite.stateDB.SetState(suite.address, ethcmn.BytesToHash([]byte("key")), ethcmn.BytesToHash([]byte("value")))
-				suite.stateDB.SetState(suite.address, ethcmn.BytesToHash([]byte("filterkey")), ethcmn.BytesToHash([]byte("filtervalue")))
-			},
-			func(key, value ethcmn.Hash) bool {
-				if value == ethcmn.BytesToHash([]byte("filtervalue")) {
-					storage = append(storage, types.NewState(key, value))
-					return true
-				}
-				return false
-			},
-			[]ethcmn.Hash{
-				ethcmn.BytesToHash([]byte("filtervalue")),
-			},
-		},
-	}
-
-	for _, tc := range testCase {
-		suite.Run(tc.name, func() {
-			suite.SetupTest() // reset
-			tc.malleate()
-			suite.stateDB.Finalise(false)
-
-			err := suite.stateDB.ForEachStorage(suite.address, tc.callback)
-			suite.Require().NoError(err)
-			suite.Require().Equal(len(tc.expValues), len(storage), fmt.Sprintf("Expected values:\n%v\nStorage Values\n%v", tc.expValues, storage))
-
-			vals := make([]string, len(storage))
-			for i := range storage {
-				vals[i] = storage[i].Value
-			}
-
-			suite.Require().ElementsMatch(tc.expValues, vals)
-		})
-		storage = types.Storage{}
-	}
-}
-
-func (suite *StateDBTestSuite) TestCommitStateDB_AccessList() {
-	addr := ethcmn.Address([20]byte{77})
-	hash := ethcmn.Hash([32]byte{99})
-
-	suite.Require().False(suite.stateDB.AddressInAccessList(addr))
-
-	suite.stateDB.AddAddressToAccessList(addr)
-	suite.Require().True(suite.stateDB.AddressInAccessList(addr))
-	addrIn, slotIn := suite.stateDB.SlotInAccessList(addr, hash)
-	suite.Require().True(addrIn)
-	suite.Require().False(slotIn)
-
-	suite.stateDB.AddSlotToAccessList(addr, hash)
-	addrIn, slotIn = suite.stateDB.SlotInAccessList(addr, hash)
-	suite.Require().True(addrIn)
-	suite.Require().True(slotIn)
-}

x/evm/types/utils.go

@@ -5,20 +5,13 @@ import (
 
 	"github.com/gogo/protobuf/proto"
 	"github.com/pkg/errors"
-	"golang.org/x/crypto/sha3"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	ethcmn "github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/rlp"
+
+	"github.com/ethereum/go-ethereum/crypto"
 )
 
-func rlpHash(x interface{}) (hash ethcmn.Hash) {
-	hasher := sha3.NewLegacyKeccak256()
-	_ = rlp.Encode(hasher, x)
-	_ = hasher.Sum(hash[:0])
-
-	return hash
-}
+var EmptyCodeHash = crypto.Keccak256(nil)
 
 // EncodeTxResponse takes all of the necessary data from the EVM execution
 // and returns the data as a byte slice encoded with protobuf.