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evm: refactor statedb implementation (#729)

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* initial statedb module

unit tests

unit tests

keeper implementation

extract TxConfig

remove unused code

* keeper integration

* fix unit tests

* Apply suggestions from code review

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* fixup! initial statedb module

* changelog

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
This commit is contained in:
yihuang 2022-01-05 15:28:27 +08:00 committed by GitHub
parent e9f1ab646c
commit ade84319e6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
38 changed files with 2373 additions and 1710 deletions
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1
CHANGELOG.md
View File

@ -52,6 +52,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
* (evm) Reject invalid `MsgEthereumTx` wrapping tx
* (evm) Fix `SelfDestruct` opcode by deleting account code and state.
* (feemarket) [tharsis#855](https://github.com/tharsis/ethermint/pull/855) consistent `BaseFee` check logic.
* (evm) [tharsis#729](https://github.com/tharsis/ethermint/pull/729) Refactor EVM StateDB implementation.
### Improvements

4
app/ante/ante_test.go
View File

@ -23,7 +23,7 @@ func (suite AnteTestSuite) TestAnteHandler() {
suite.Require().NoError(acc.SetSequence(1))
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(10000000000))
suite.app.EvmKeeper.SetBalance(suite.ctx, addr, big.NewInt(10000000000))
suite.app.FeeMarketKeeper.SetBaseFee(suite.ctx, big.NewInt(100))
@ -577,7 +577,7 @@ func (suite AnteTestSuite) TestAnteHandlerWithDynamicTxFee() {
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
suite.ctx = suite.ctx.WithIsCheckTx(tc.checkTx).WithIsReCheckTx(tc.reCheckTx)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt((ethparams.InitialBaseFee+10)*100000))
suite.app.EvmKeeper.SetBalance(suite.ctx, addr, big.NewInt((ethparams.InitialBaseFee+10)*100000))
_, err := suite.anteHandler(suite.ctx, tc.txFn(), false)
if tc.expPass {
suite.Require().NoError(err)

39
app/ante/eth.go
View File

@ -10,6 +10,7 @@ import (
ethermint "github.com/tharsis/ethermint/types"
evmkeeper "github.com/tharsis/ethermint/x/evm/keeper"
"github.com/tharsis/ethermint/x/evm/statedb"
evmtypes "github.com/tharsis/ethermint/x/evm/types"
"github.com/ethereum/go-ethereum/common"
@ -95,9 +96,6 @@ func (avd EthAccountVerificationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx
return next(ctx, tx, simulate)
}
avd.evmKeeper.WithContext(ctx)
evmDenom := avd.evmKeeper.GetParams(ctx).EvmDenom
for i, msg := range tx.GetMsgs() {
msgEthTx, ok := msg.(*evmtypes.MsgEthereumTx)
if !ok {
@ -117,25 +115,25 @@ func (avd EthAccountVerificationDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx
// check whether the sender address is EOA
fromAddr := common.BytesToAddress(from)
codeHash := avd.evmKeeper.GetCodeHash(fromAddr)
if codeHash != common.BytesToHash(evmtypes.EmptyCodeHash) {
acct, err := avd.evmKeeper.GetAccount(ctx, fromAddr)
if err != nil {
return ctx, sdkerrors.Wrapf(sdkerrors.ErrInvalidType,
"the sender is not EOA: address <%v>, codeHash <%s>", fromAddr, codeHash)
"the sender is not EthAccount: address %s", fromAddr)
}
acc := avd.ak.GetAccount(ctx, from)
if acc == nil {
acc = avd.ak.NewAccountWithAddress(ctx, from)
if acct == nil {
acc := avd.ak.NewAccountWithAddress(ctx, from)
avd.ak.SetAccount(ctx, acc)
acct = statedb.NewEmptyAccount()
} else if acct.IsContract() {
return ctx, sdkerrors.Wrapf(sdkerrors.ErrInvalidType,
"the sender is not EOA: address %s, codeHash <%s>", fromAddr, acct.CodeHash)
}
if err := evmkeeper.CheckSenderBalance(ctx, avd.bankKeeper, from, txData, evmDenom); err != nil {
if err := evmkeeper.CheckSenderBalance(sdk.NewIntFromBigInt(acct.Balance), txData); err != nil {
return ctx, sdkerrors.Wrap(err, "failed to check sender balance")
}
}
// recover the original gas meter
avd.evmKeeper.WithContext(ctx)
return next(ctx, tx, simulate)
}
@ -221,9 +219,6 @@ func NewEthGasConsumeDecorator(
// - user doesn't have enough balance to deduct the transaction fees (gas_limit * gas_price)
// - transaction or block gas meter runs out of gas
func (egcd EthGasConsumeDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (newCtx sdk.Context, err error) {
// reset the refund gas value in the keeper for the current transaction
egcd.evmKeeper.ResetRefundTransient(ctx)
params := egcd.evmKeeper.GetParams(ctx)
ethCfg := params.ChainConfig.EthereumConfig(egcd.evmKeeper.ChainID())
@ -278,8 +273,6 @@ func (egcd EthGasConsumeDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simula
}
// we know that we have enough gas on the pool to cover the intrinsic gas
// set up the updated context to the evm Keeper
egcd.evmKeeper.WithContext(ctx)
return next(ctx, tx, simulate)
}
@ -301,8 +294,6 @@ func NewCanTransferDecorator(evmKeeper EVMKeeper, fmk evmtypes.FeeMarketKeeper)
// AnteHandle creates an EVM from the message and calls the BlockContext CanTransfer function to
// see if the address can execute the transaction.
func (ctd CanTransferDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (sdk.Context, error) {
ctd.evmKeeper.WithContext(ctx)
params := ctd.evmKeeper.GetParams(ctx)
ethCfg := params.ChainConfig.EthereumConfig(ctd.evmKeeper.ChainID())
signer := ethtypes.MakeSigner(ethCfg, big.NewInt(ctx.BlockHeight()))
@ -330,11 +321,12 @@ func (ctd CanTransferDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate
CoinBase: common.Address{},
BaseFee: baseFee,
}
evm := ctd.evmKeeper.NewEVM(coreMsg, cfg, evmtypes.NewNoOpTracer())
stateDB := statedb.New(ctx, ctd.evmKeeper, statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes())))
evm := ctd.evmKeeper.NewEVM(ctx, coreMsg, cfg, evmtypes.NewNoOpTracer(), stateDB)
// check that caller has enough balance to cover asset transfer for **topmost** call
// NOTE: here the gas consumed is from the context with the infinite gas meter
if coreMsg.Value().Sign() > 0 && !evm.Context.CanTransfer(ctd.evmKeeper, coreMsg.From(), coreMsg.Value()) {
if coreMsg.Value().Sign() > 0 && !evm.Context.CanTransfer(stateDB, coreMsg.From(), coreMsg.Value()) {
return ctx, sdkerrors.Wrapf(
sdkerrors.ErrInsufficientFunds,
"failed to transfer %s from address %s using the EVM block context transfer function",
@ -360,7 +352,6 @@ func (ctd CanTransferDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate
}
}
// set the original gas meter
return next(ctx, tx, simulate)
}
@ -422,8 +413,6 @@ func (vbd EthValidateBasicDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simu
return next(ctx, tx, simulate)
}
vbd.evmKeeper.WithContext(ctx)
err := tx.ValidateBasic()
// ErrNoSignatures is fine with eth tx
if err != nil && !errors.Is(err, sdkerrors.ErrNoSignatures) {

51
app/ante/eth_test.go
View File

@ -7,6 +7,7 @@ import (
"github.com/tharsis/ethermint/app/ante"
"github.com/tharsis/ethermint/tests"
"github.com/tharsis/ethermint/x/evm/statedb"
evmtypes "github.com/tharsis/ethermint/x/evm/types"
ethtypes "github.com/ethereum/go-ethereum/core/types"
@ -65,6 +66,8 @@ func (suite AnteTestSuite) TestNewEthAccountVerificationDecorator() {
tx := evmtypes.NewTxContract(suite.app.EvmKeeper.ChainID(), 1, big.NewInt(10), 1000, big.NewInt(1), nil, nil, nil, nil)
tx.From = addr.Hex()
var vmdb *statedb.StateDB
testCases := []struct {
name string
tx sdk.Tx
@ -86,7 +89,7 @@ func (suite AnteTestSuite) TestNewEthAccountVerificationDecorator() {
tx,
func() {
// set not as an EOA
suite.app.EvmKeeper.SetCode(addr, []byte("1"))
vmdb.SetCode(addr, []byte("1"))
},
true,
false,
@ -96,7 +99,7 @@ func (suite AnteTestSuite) TestNewEthAccountVerificationDecorator() {
tx,
func() {
// reset back to EOA
suite.app.EvmKeeper.SetCode(addr, nil)
vmdb.SetCode(addr, nil)
},
true,
false,
@ -105,7 +108,7 @@ func (suite AnteTestSuite) TestNewEthAccountVerificationDecorator() {
"success new account",
tx,
func() {
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(1000000))
vmdb.AddBalance(addr, big.NewInt(1000000))
},
true,
true,
@ -117,7 +120,7 @@ func (suite AnteTestSuite) TestNewEthAccountVerificationDecorator() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(1000000))
vmdb.AddBalance(addr, big.NewInt(1000000))
},
true,
true,
@ -126,7 +129,10 @@ func (suite AnteTestSuite) TestNewEthAccountVerificationDecorator() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
vmdb = suite.StateDB()
tc.malleate()
suite.Require().NoError(vmdb.Commit())
_, err := dec.AnteHandle(suite.ctx.WithIsCheckTx(tc.checkTx), tc.tx, false, nextFn)
if tc.expPass {
@ -204,6 +210,8 @@ func (suite AnteTestSuite) TestEthGasConsumeDecorator() {
tx2 := evmtypes.NewTxContract(suite.app.EvmKeeper.ChainID(), 1, big.NewInt(10), 1000000, big.NewInt(1), nil, nil, nil, &ethtypes.AccessList{{Address: addr, StorageKeys: nil}})
tx2.From = addr.Hex()
var vmdb *statedb.StateDB
testCases := []struct {
name string
tx sdk.Tx
@ -221,29 +229,20 @@ func (suite AnteTestSuite) TestEthGasConsumeDecorator() {
{
"gas limit too low",
tx,
func() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
},
func() {},
false, false,
},
{
"not enough balance for fees",
tx2,
func() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
},
func() {},
false, false,
},
{
"not enough tx gas",
tx2,
func() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(1000000))
vmdb.AddBalance(addr, big.NewInt(1000000))
},
false, true,
},
@ -251,10 +250,7 @@ func (suite AnteTestSuite) TestEthGasConsumeDecorator() {
"not enough block gas",
tx2,
func() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(1000000))
vmdb.AddBalance(addr, big.NewInt(1000000))
suite.ctx = suite.ctx.WithBlockGasMeter(sdk.NewGasMeter(1))
},
@ -264,10 +260,7 @@ func (suite AnteTestSuite) TestEthGasConsumeDecorator() {
"success",
tx2,
func() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(1000000))
vmdb.AddBalance(addr, big.NewInt(1000000))
suite.ctx = suite.ctx.WithBlockGasMeter(sdk.NewGasMeter(10000000000000000000))
},
@ -277,7 +270,9 @@ func (suite AnteTestSuite) TestEthGasConsumeDecorator() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
vmdb = suite.StateDB()
tc.malleate()
suite.Require().NoError(vmdb.Commit())
if tc.expPanic {
suite.Require().Panics(func() {
@ -331,6 +326,8 @@ func (suite AnteTestSuite) TestCanTransferDecorator() {
err := tx.Sign(suite.ethSigner, tests.NewSigner(privKey))
suite.Require().NoError(err)
var vmdb *statedb.StateDB
testCases := []struct {
name string
tx sdk.Tx
@ -355,7 +352,7 @@ func (suite AnteTestSuite) TestCanTransferDecorator() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(1000000))
vmdb.AddBalance(addr, big.NewInt(1000000))
},
true,
},
@ -363,7 +360,9 @@ func (suite AnteTestSuite) TestCanTransferDecorator() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
vmdb = suite.StateDB()
tc.malleate()
suite.Require().NoError(vmdb.Commit())
_, err := dec.AnteHandle(suite.ctx.WithIsCheckTx(true), tc.tx, false, nextFn)
@ -458,7 +457,7 @@ func (suite AnteTestSuite) TestEthIncrementSenderSequenceDecorator() {
txData, err := evmtypes.UnpackTxData(msg.Data)
suite.Require().NoError(err)
nonce := suite.app.EvmKeeper.GetNonce(addr)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, addr)
suite.Require().Equal(txData.GetNonce()+1, nonce)
} else {
suite.Require().Error(err)

9
app/ante/interfaces.go
View File

@ -5,23 +5,20 @@ import (
sdk "github.com/cosmos/cosmos-sdk/types"
tx "github.com/cosmos/cosmos-sdk/types/tx"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/params"
"github.com/tharsis/ethermint/x/evm/statedb"
evmtypes "github.com/tharsis/ethermint/x/evm/types"
)
// EVMKeeper defines the expected keeper interface used on the Eth AnteHandler
type EVMKeeper interface {
vm.StateDB
statedb.Keeper
ChainID() *big.Int
GetParams(ctx sdk.Context) evmtypes.Params
WithContext(ctx sdk.Context)
ResetRefundTransient(ctx sdk.Context)
NewEVM(msg core.Message, cfg *evmtypes.EVMConfig, tracer vm.Tracer) *vm.EVM
GetCodeHash(addr common.Address) common.Hash
NewEVM(ctx sdk.Context, msg core.Message, cfg *evmtypes.EVMConfig, tracer vm.Tracer, stateDB vm.StateDB) *vm.EVM
DeductTxCostsFromUserBalance(
ctx sdk.Context, msgEthTx evmtypes.MsgEthereumTx, txData evmtypes.TxData, denom string, homestead, istanbul, london bool,
) (sdk.Coins, error)

9
app/ante/sigs_test.go
View File

@ -4,6 +4,7 @@ import (
"math/big"
"github.com/tharsis/ethermint/tests"
"github.com/tharsis/ethermint/x/evm/statedb"
evmtypes "github.com/tharsis/ethermint/x/evm/types"
)
@ -14,11 +15,11 @@ func (suite AnteTestSuite) TestSignatures() {
addr, privKey := tests.NewAddrKey()
to := tests.GenerateAddress()
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, addr.Bytes())
suite.Require().NoError(acc.SetSequence(1))
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
acc := statedb.NewEmptyAccount()
acc.Nonce = 1
acc.Balance = big.NewInt(10000000000)
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(10000000000))
suite.app.EvmKeeper.SetAccount(suite.ctx, addr, *acc)
msgEthereumTx := evmtypes.NewTx(suite.app.EvmKeeper.ChainID(), 1, &to, big.NewInt(10), 100000, big.NewInt(1), nil, nil, nil, nil)
msgEthereumTx.From = addr.Hex()

6
app/ante/utils_test.go
View File

@ -5,6 +5,7 @@ import (
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/stretchr/testify/suite"
@ -25,6 +26,7 @@ import (
ante "github.com/tharsis/ethermint/app/ante"
"github.com/tharsis/ethermint/encoding"
"github.com/tharsis/ethermint/tests"
"github.com/tharsis/ethermint/x/evm/statedb"
evmtypes "github.com/tharsis/ethermint/x/evm/types"
feemarkettypes "github.com/tharsis/ethermint/x/feemarket/types"
@ -43,6 +45,10 @@ type AnteTestSuite struct {
enableLondonHF bool
}
func (suite *AnteTestSuite) StateDB() *statedb.StateDB {
return statedb.New(suite.ctx, suite.app.EvmKeeper, statedb.NewEmptyTxConfig(common.BytesToHash(suite.ctx.HeaderHash().Bytes())))
}
func (suite *AnteTestSuite) SetupTest() {
checkTx := false

33
tests/importer/importer_test.go
View File

@ -17,6 +17,7 @@ import (
sdk "github.com/cosmos/cosmos-sdk/types"
evmkeeper "github.com/tharsis/ethermint/x/evm/keeper"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
@ -139,23 +140,23 @@ func (suite *ImporterTestSuite) TestImportBlocks() {
})
ctx := suite.app.NewContext(false, tmheader)
ctx = ctx.WithBlockHeight(tmheader.Height)
suite.app.EvmKeeper.WithContext(ctx)
vmdb := statedb.New(ctx, suite.app.EvmKeeper, statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes())))
if chainConfig.DAOForkSupport && chainConfig.DAOForkBlock != nil && chainConfig.DAOForkBlock.Cmp(block.Number()) == 0 {
applyDAOHardFork(suite.app.EvmKeeper)
applyDAOHardFork(vmdb)
}
for _, tx := range block.Transactions() {
receipt, gas, err := applyTransaction(
chainConfig, chainContext, nil, gp, suite.app.EvmKeeper, header, tx, usedGas, vmConfig,
ctx, chainConfig, chainContext, nil, gp, suite.app.EvmKeeper, vmdb, header, tx, usedGas, vmConfig,
)
suite.Require().NoError(err, "failed to apply tx at block %d; tx: %X; gas %d; receipt:%v", block.NumberU64(), tx.Hash(), gas, receipt)
suite.Require().NotNil(receipt)
}
// apply mining rewards
accumulateRewards(chainConfig, suite.app.EvmKeeper, header, block.Uncles())
accumulateRewards(chainConfig, vmdb, header, block.Uncles())
// simulate BaseApp EndBlocker commitment
endBR := types.RequestEndBlock{Height: tmheader.Height}
@ -173,7 +174,7 @@ func (suite *ImporterTestSuite) TestImportBlocks() {
// reward. The total reward consists of the static block reward and rewards for
// included uncles. The coinbase of each uncle block is also rewarded.
func accumulateRewards(
config *ethparams.ChainConfig, evmKeeper *evmkeeper.Keeper,
config *ethparams.ChainConfig, vmdb ethvm.StateDB,
header *ethtypes.Header, uncles []*ethtypes.Header,
) {
// select the correct block reward based on chain progression
@ -191,12 +192,12 @@ func accumulateRewards(
r.Sub(r, header.Number)
r.Mul(r, blockReward)
r.Div(r, rewardBig8)
evmKeeper.AddBalance(uncle.Coinbase, r)
vmdb.AddBalance(uncle.Coinbase, r)
r.Div(blockReward, rewardBig32)
reward.Add(reward, r)
}
evmKeeper.AddBalance(header.Coinbase, reward)
vmdb.AddBalance(header.Coinbase, reward)
}
// ApplyDAOHardFork modifies the state database according to the DAO hard-fork
@ -205,15 +206,15 @@ func accumulateRewards(
// Code is pulled from go-ethereum 1.9 because the StateDB interface does not include the
// SetBalance function implementation
// Ref: https://github.com/ethereum/go-ethereum/blob/52f2461774bcb8cdd310f86b4bc501df5b783852/consensus/misc/dao.go#L74
func applyDAOHardFork(evmKeeper *evmkeeper.Keeper) {
func applyDAOHardFork(vmdb ethvm.StateDB) {
// Retrieve the contract to refund balances into
if !evmKeeper.Exist(ethparams.DAORefundContract) {
evmKeeper.CreateAccount(ethparams.DAORefundContract)
if !vmdb.Exist(ethparams.DAORefundContract) {
vmdb.CreateAccount(ethparams.DAORefundContract)
}
// Move every DAO account and extra-balance account funds into the refund contract
for _, addr := range ethparams.DAODrainList() {
evmKeeper.AddBalance(ethparams.DAORefundContract, evmKeeper.GetBalance(addr))
vmdb.AddBalance(ethparams.DAORefundContract, vmdb.GetBalance(addr))
}
}
@ -224,8 +225,8 @@ func applyDAOHardFork(evmKeeper *evmkeeper.Keeper) {
// Function is also pulled from go-ethereum 1.9 because of the incompatible usage
// Ref: https://github.com/ethereum/go-ethereum/blob/52f2461774bcb8cdd310f86b4bc501df5b783852/core/state_processor.go#L88
func applyTransaction(
config *ethparams.ChainConfig, bc ethcore.ChainContext, author *common.Address,
gp *ethcore.GasPool, evmKeeper *evmkeeper.Keeper, header *ethtypes.Header,
ctx sdk.Context, config *ethparams.ChainConfig, bc ethcore.ChainContext, author *common.Address,
gp *ethcore.GasPool, evmKeeper *evmkeeper.Keeper, vmdb *statedb.StateDB, header *ethtypes.Header,
tx *ethtypes.Transaction, usedGas *uint64, cfg ethvm.Config,
) (*ethtypes.Receipt, uint64, error) {
msg, err := tx.AsMessage(ethtypes.MakeSigner(config, header.Number), sdk.ZeroInt().BigInt())
@ -239,7 +240,7 @@ func applyTransaction(
// Create a new environment which holds all relevant information
// about the transaction and calling mechanisms.
vmenv := ethvm.NewEVM(blockCtx, txCtx, evmKeeper, config, cfg)
vmenv := ethvm.NewEVM(blockCtx, txCtx, vmdb, config, cfg)
// Apply the transaction to the current state (included in the env)
execResult, err := ethcore.ApplyMessage(vmenv, msg, gp)
@ -263,11 +264,11 @@ func applyTransaction(
}
// Set the receipt logs and create a bloom for filtering
receipt.Logs = evmKeeper.GetTxLogsTransient(tx.Hash())
receipt.Logs = vmdb.Logs()
receipt.Bloom = ethtypes.CreateBloom(ethtypes.Receipts{receipt})
receipt.BlockHash = header.Hash()
receipt.BlockNumber = header.Number
receipt.TransactionIndex = uint(evmKeeper.GetTxIndexTransient())
receipt.TransactionIndex = uint(evmKeeper.GetTxIndexTransient(ctx))
return receipt, execResult.UsedGas, err
}

14
x/evm/genesis.go
View File

@ -22,7 +22,6 @@ func InitGenesis(
accountKeeper types.AccountKeeper,
data types.GenesisState,
) []abci.ValidatorUpdate {
k.WithContext(ctx)
k.WithChainID(ctx)
k.SetParams(ctx, data.Params)
@ -55,10 +54,10 @@ func InitGenesis(
if !bytes.Equal(common.HexToHash(ethAcct.CodeHash).Bytes(), codeHash.Bytes()) {
panic("code don't match codeHash")
}
k.SetCode(address, code)
k.SetCode(ctx, codeHash.Bytes(), code)
for _, storage := range account.Storage {
k.SetState(address, common.HexToHash(storage.Key), common.HexToHash(storage.Value))
k.SetState(ctx, address, common.HexToHash(storage.Key), common.HexToHash(storage.Value).Bytes())
}
}
@ -67,8 +66,6 @@ func InitGenesis(
// ExportGenesis exports genesis state of the EVM module
func ExportGenesis(ctx sdk.Context, k *keeper.Keeper, ak types.AccountKeeper) *types.GenesisState {
k.WithContext(ctx)
var ethGenAccounts []types.GenesisAccount
ak.IterateAccounts(ctx, func(account authtypes.AccountI) bool {
ethAccount, ok := account.(*ethermint.EthAccount)
@ -79,14 +76,11 @@ func ExportGenesis(ctx sdk.Context, k *keeper.Keeper, ak types.AccountKeeper) *t
addr := ethAccount.EthAddress()
storage, err := k.GetAccountStorage(ctx, addr)
if err != nil {
panic(err)
}
storage := k.GetAccountStorage(ctx, addr)
genAccount := types.GenesisAccount{
Address: addr.String(),
Code: common.Bytes2Hex(k.GetCode(addr)),
Code: common.Bytes2Hex(k.GetCode(ctx, ethAccount.GetCodeHash())),
Storage: storage,
}

11
x/evm/genesis_test.go
View File

@ -8,6 +8,7 @@ import (
authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
"github.com/tharsis/ethermint/crypto/ethsecp256k1"
"github.com/tharsis/ethermint/x/evm"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
)
@ -17,6 +18,8 @@ func (suite *EvmTestSuite) TestInitGenesis() {
address := common.HexToAddress(privkey.PubKey().Address().String())
var vmdb *statedb.StateDB
testCases := []struct {
name string
malleate func()
@ -32,11 +35,7 @@ func (suite *EvmTestSuite) TestInitGenesis() {
{
"valid account",
func() {
acc := suite.app.AccountKeeper.NewAccountWithAddress(suite.ctx, address.Bytes())
suite.Require().NotNil(acc)
suite.app.EvmKeeper.AddBalance(address, big.NewInt(1))
suite.app.AccountKeeper.SetAccount(suite.ctx, acc)
vmdb.AddBalance(address, big.NewInt(1))
},
&types.GenesisState{
Params: types.DefaultParams(),
@ -102,8 +101,10 @@ func (suite *EvmTestSuite) TestInitGenesis() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupTest() // reset values
vmdb = suite.StateDB()
tc.malleate()
vmdb.Commit()
if tc.expPanic {
suite.Require().Panics(

41
x/evm/handler_test.go
View File

@ -33,6 +33,7 @@ import (
"github.com/tharsis/ethermint/tests"
ethermint "github.com/tharsis/ethermint/types"
"github.com/tharsis/ethermint/x/evm"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
"github.com/tendermint/tendermint/crypto/tmhash"
@ -137,7 +138,6 @@ func (suite *EvmTestSuite) DoSetupTest(t require.TestingT) {
ConsensusHash: tmhash.Sum([]byte("consensus")),
LastResultsHash: tmhash.Sum([]byte("last_result")),
})
suite.app.EvmKeeper.WithContext(suite.ctx)
queryHelper := baseapp.NewQueryServerTestHelper(suite.ctx, suite.app.InterfaceRegistry())
types.RegisterQueryServer(queryHelper, suite.app.EvmKeeper)
@ -173,6 +173,10 @@ func (suite *EvmTestSuite) SignTx(tx *types.MsgEthereumTx) {
suite.Require().NoError(err)
}
func (suite *EvmTestSuite) StateDB() *statedb.StateDB {
return statedb.New(suite.ctx, suite.app.EvmKeeper, statedb.NewEmptyTxConfig(common.BytesToHash(suite.ctx.HeaderHash().Bytes())))
}
func TestEvmTestSuite(t *testing.T) {
suite.Run(t, new(EvmTestSuite))
}
@ -230,7 +234,6 @@ func (suite *EvmTestSuite) TestHandleMsgEthereumTx() {
suite.SetupTest() // reset
//nolint
tc.malleate()
suite.app.EvmKeeper.Snapshot()
res, err := suite.handler(suite.ctx, tx)
//nolint
@ -282,16 +285,6 @@ func (suite *EvmTestSuite) TestHandlerLogs() {
suite.Require().Equal(len(txResponse.Logs), 1)
suite.Require().Equal(len(txResponse.Logs[0].Topics), 2)
tlogs := types.LogsToEthereum(txResponse.Logs)
for _, log := range tlogs {
suite.app.EvmKeeper.AddLogTransient(log)
}
suite.Require().NoError(err)
logs := suite.app.EvmKeeper.GetTxLogsTransient(tlogs[0].TxHash)
suite.Require().Equal(logs, tlogs)
}
func (suite *EvmTestSuite) TestDeployAndCallContract() {
@ -510,7 +503,7 @@ func (suite *EvmTestSuite) TestErrorWhenDeployContract() {
func (suite *EvmTestSuite) deployERC20Contract() common.Address {
k := suite.app.EvmKeeper
nonce := k.GetNonce(suite.from)
nonce := k.GetNonce(suite.ctx, suite.from)
ctorArgs, err := types.ERC20Contract.ABI.Pack("", suite.from, big.NewInt(10000000000))
suite.Require().NoError(err)
msg := ethtypes.NewMessage(
@ -526,7 +519,7 @@ func (suite *EvmTestSuite) deployERC20Contract() common.Address {
nil,
true,
)
rsp, err := k.ApplyMessage(msg, nil, true)
rsp, err := k.ApplyMessage(suite.ctx, msg, nil, true)
suite.Require().NoError(err)
suite.Require().False(rsp.Failed())
return crypto.CreateAddress(suite.from, nonce)
@ -571,14 +564,14 @@ func (suite *EvmTestSuite) TestERC20TransferReverted() {
k.SetHooks(tc.hooks)
// add some fund to pay gas fee
k.AddBalance(suite.from, big.NewInt(10000000000))
k.SetBalance(suite.ctx, suite.from, big.NewInt(10000000000))
contract := suite.deployERC20Contract()
data, err := types.ERC20Contract.ABI.Pack("transfer", suite.from, big.NewInt(10))
suite.Require().NoError(err)
nonce := k.GetNonce(suite.from)
nonce := k.GetNonce(suite.ctx, suite.from)
tx := types.NewTx(
suite.chainID,
nonce,
@ -593,7 +586,7 @@ func (suite *EvmTestSuite) TestERC20TransferReverted() {
)
suite.SignTx(tx)
before := k.GetBalance(suite.from)
before := k.GetBalance(suite.ctx, suite.from)
txData, err := types.UnpackTxData(tx.Data)
suite.Require().NoError(err)
@ -606,7 +599,7 @@ func (suite *EvmTestSuite) TestERC20TransferReverted() {
suite.Require().True(res.Failed())
suite.Require().Equal(tc.expErr, res.VmError)
after := k.GetBalance(suite.from)
after := k.GetBalance(suite.ctx, suite.from)
if tc.expErr == "out of gas" {
suite.Require().Equal(tc.gasLimit, res.GasUsed)
@ -618,7 +611,8 @@ func (suite *EvmTestSuite) TestERC20TransferReverted() {
suite.Require().Equal(big.NewInt(int64(res.GasUsed)), new(big.Int).Sub(before, after))
// nonce should not be increased.
suite.Require().Equal(nonce, k.GetNonce(suite.from))
nonce2 := k.GetNonce(suite.ctx, suite.from)
suite.Require().Equal(nonce, nonce2)
})
}
}
@ -650,7 +644,7 @@ func (suite *EvmTestSuite) TestContractDeploymentRevert() {
// test with different hooks scenarios
k.SetHooks(tc.hooks)
nonce := k.GetNonce(suite.from)
nonce := k.GetNonce(suite.ctx, suite.from)
ctorArgs, err := types.ERC20Contract.ABI.Pack("", suite.from, big.NewInt(0))
suite.Require().NoError(err)
@ -667,14 +661,17 @@ func (suite *EvmTestSuite) TestContractDeploymentRevert() {
suite.SignTx(tx)
// simulate nonce increment in ante handler
k.SetNonce(suite.from, nonce+1)
db := suite.StateDB()
db.SetNonce(suite.from, nonce+1)
suite.Require().NoError(db.Commit())
rsp, err := k.EthereumTx(sdk.WrapSDKContext(suite.ctx), tx)
suite.Require().NoError(err)
suite.Require().True(rsp.Failed())
// nonce don't change
suite.Require().Equal(nonce+1, k.GetNonce(suite.from))
nonce2 := k.GetNonce(suite.ctx, suite.from)
suite.Require().Equal(nonce+1, nonce2)
})
}
}

6
x/evm/keeper/abci.go
View File

@ -10,7 +10,6 @@ import (
// BeginBlock sets the sdk Context and EIP155 chain id to the Keeper.
func (k *Keeper) BeginBlock(ctx sdk.Context, req abci.RequestBeginBlock) {
k.WithContext(ctx)
k.WithChainID(ctx)
}
@ -20,12 +19,9 @@ func (k *Keeper) BeginBlock(ctx sdk.Context, req abci.RequestBeginBlock) {
func (k *Keeper) EndBlock(ctx sdk.Context, req abci.RequestEndBlock) []abci.ValidatorUpdate {
// Gas costs are handled within msg handler so costs should be ignored
infCtx := ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
k.WithContext(infCtx)
bloom := ethtypes.BytesToBloom(k.GetBlockBloomTransient().Bytes())
bloom := ethtypes.BytesToBloom(k.GetBlockBloomTransient(infCtx).Bytes())
k.EmitBlockBloomEvent(infCtx, bloom)
k.WithContext(ctx)
return []abci.ValidatorUpdate{}
}

48
x/evm/keeper/benchmark_test.go
View File

@ -12,7 +12,6 @@ import (
ethtypes "github.com/ethereum/go-ethereum/core/types"
ethermint "github.com/tharsis/ethermint/types"
"github.com/tharsis/ethermint/x/evm/keeper"
"github.com/tharsis/ethermint/x/evm/types"
)
@ -81,7 +80,7 @@ func BenchmarkTokenTransfer(b *testing.B) {
DoBenchmark(b, func(suite *KeeperTestSuite, contract common.Address) *types.MsgEthereumTx {
input, err := types.ERC20Contract.ABI.Pack("transfer", common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), big.NewInt(1000))
require.NoError(b, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
return types.NewTx(suite.app.EvmKeeper.ChainID(), nonce, &contract, big.NewInt(0), 410000, big.NewInt(1), nil, nil, input, nil)
})
}
@ -90,7 +89,7 @@ func BenchmarkEmitLogs(b *testing.B) {
DoBenchmark(b, func(suite *KeeperTestSuite, contract common.Address) *types.MsgEthereumTx {
input, err := types.ERC20Contract.ABI.Pack("benchmarkLogs", big.NewInt(1000))
require.NoError(b, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
return types.NewTx(suite.app.EvmKeeper.ChainID(), nonce, &contract, big.NewInt(0), 4100000, big.NewInt(1), nil, nil, input, nil)
})
}
@ -99,7 +98,7 @@ func BenchmarkTokenTransferFrom(b *testing.B) {
DoBenchmark(b, func(suite *KeeperTestSuite, contract common.Address) *types.MsgEthereumTx {
input, err := types.ERC20Contract.ABI.Pack("transferFrom", suite.address, common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), big.NewInt(0))
require.NoError(b, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
return types.NewTx(suite.app.EvmKeeper.ChainID(), nonce, &contract, big.NewInt(0), 410000, big.NewInt(1), nil, nil, input, nil)
})
}
@ -108,7 +107,7 @@ func BenchmarkTokenMint(b *testing.B) {
DoBenchmark(b, func(suite *KeeperTestSuite, contract common.Address) *types.MsgEthereumTx {
input, err := types.ERC20Contract.ABI.Pack("mint", common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), big.NewInt(1000))
require.NoError(b, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
return types.NewTx(suite.app.EvmKeeper.ChainID(), nonce, &contract, big.NewInt(0), 410000, big.NewInt(1), nil, nil, input, nil)
})
}
@ -118,7 +117,7 @@ func BenchmarkMessageCall(b *testing.B) {
input, err := types.TestMessageCall.ABI.Pack("benchmarkMessageCall", big.NewInt(10000))
require.NoError(b, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
msg := types.NewTx(suite.app.EvmKeeper.ChainID(), nonce, &contract, big.NewInt(0), 25000000, big.NewInt(1), nil, nil, input, nil)
msg.From = suite.address.Hex()
@ -143,40 +142,3 @@ func BenchmarkMessageCall(b *testing.B) {
require.False(b, rsp.Failed())
}
}
func DoBenchmarkDeepContextStack(b *testing.B, depth int) {
begin := []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
end := []byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
transientKey := suite.app.GetTKey(types.TransientKey)
var stack keeper.ContextStack
stack.Reset(suite.ctx)
for i := 0; i < depth; i++ {
stack.Snapshot()
store := stack.CurrentContext().TransientStore(transientKey)
store.Set(begin, []byte("value"))
}
store := stack.CurrentContext().TransientStore(transientKey)
for i := 0; i < b.N; i++ {
store.Iterator(begin, end)
}
}
func BenchmarkDeepContextStack1(b *testing.B) {
DoBenchmarkDeepContextStack(b, 1)
}
func BenchmarkDeepContextStack10(b *testing.B) {
DoBenchmarkDeepContextStack(b, 10)
}
func BenchmarkDeepContextStack13(b *testing.B) {
DoBenchmarkDeepContextStack(b, 13)
}

109
x/evm/keeper/context_stack.go
View File

@ -1,109 +0,0 @@
package keeper
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// cachedContext is a pair of cache context and its corresponding commit method.
// They are obtained from the return value of `context.CacheContext()`.
type cachedContext struct {
ctx sdk.Context
commit func()
}
// ContextStack manages the initial context and a stack of cached contexts,
// to support the `StateDB.Snapshot` and `StateDB.RevertToSnapshot` methods.
type ContextStack struct {
// Context of the initial state before transaction execution.
// It's the context used by `StateDB.CommitedState`.
initialCtx sdk.Context
cachedContexts []cachedContext
}
// CurrentContext returns the top context of cached stack,
// if the stack is empty, returns the initial context.
func (cs *ContextStack) CurrentContext() sdk.Context {
l := len(cs.cachedContexts)
if l == 0 {
return cs.initialCtx
}
return cs.cachedContexts[l-1].ctx
}
// Reset sets the initial context and clear the cache context stack.
func (cs *ContextStack) Reset(ctx sdk.Context) {
cs.initialCtx = ctx
if len(cs.cachedContexts) > 0 {
cs.cachedContexts = []cachedContext{}
}
}
// IsEmpty returns true if the cache context stack is empty.
func (cs *ContextStack) IsEmpty() bool {
return len(cs.cachedContexts) == 0
}
// Commit commits all the cached contexts from top to bottom in order and clears the stack by setting an empty slice of cache contexts.
func (cs *ContextStack) Commit() {
// commit in order from top to bottom
for i := len(cs.cachedContexts) - 1; i >= 0; i-- {
// keep all the cosmos events
cs.initialCtx.EventManager().EmitEvents(cs.cachedContexts[i].ctx.EventManager().Events())
if cs.cachedContexts[i].commit == nil {
panic(fmt.Sprintf("commit function at index %d should not be nil", i))
} else {
cs.cachedContexts[i].commit()
}
}
cs.cachedContexts = []cachedContext{}
}
// CommitToRevision commit the cache after the target revision,
// to improve efficiency of db operations.
func (cs *ContextStack) CommitToRevision(target int) error {
if target < 0 || target >= len(cs.cachedContexts) {
return fmt.Errorf("snapshot index %d out of bound [%d..%d)", target, 0, len(cs.cachedContexts))
}
targetCtx := cs.cachedContexts[target].ctx
// commit in order from top to bottom
for i := len(cs.cachedContexts) - 1; i > target; i-- {
// keep all the cosmos events
targetCtx.EventManager().EmitEvents(cs.cachedContexts[i].ctx.EventManager().Events())
if cs.cachedContexts[i].commit == nil {
return fmt.Errorf("commit function at index %d should not be nil", i)
}
cs.cachedContexts[i].commit()
}
cs.cachedContexts = cs.cachedContexts[0 : target+1]
return nil
}
// Snapshot pushes a new cached context to the stack,
// and returns the index of it.
func (cs *ContextStack) Snapshot() int {
i := len(cs.cachedContexts)
ctx, commit := cs.CurrentContext().CacheContext()
cs.cachedContexts = append(cs.cachedContexts, cachedContext{ctx: ctx, commit: commit})
return i
}
// RevertToSnapshot pops all the cached contexts after the target index (inclusive).
// the target should be snapshot index returned by `Snapshot`.
// This function panics if the index is out of bounds.
func (cs *ContextStack) RevertToSnapshot(target int) {
if target < 0 || target >= len(cs.cachedContexts) {
panic(fmt.Errorf("snapshot index %d out of bound [%d..%d)", target, 0, len(cs.cachedContexts)))
}
cs.cachedContexts = cs.cachedContexts[:target]
}
// RevertAll discards all the cache contexts.
func (cs *ContextStack) RevertAll() {
if len(cs.cachedContexts) > 0 {
cs.RevertToSnapshot(0)
}
}

108
x/evm/keeper/grpc_query.go
View File

@ -23,6 +23,7 @@ import (
ethparams "github.com/ethereum/go-ethereum/params"
ethermint "github.com/tharsis/ethermint/types"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
)
@ -47,12 +48,14 @@ func (k Keeper) Account(c context.Context, req *types.QueryAccountRequest) (*typ
addr := common.HexToAddress(req.Address)
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
acct, err := k.GetAccountOrEmpty(ctx, addr)
if err != nil {
return nil, status.Error(codes.InvalidArgument, err.Error())
}
return &types.QueryAccountResponse{
Balance: k.GetBalance(addr).String(),
CodeHash: k.GetCodeHash(addr).Hex(),
Nonce: k.GetNonce(addr),
Balance: acct.Balance.String(),
CodeHash: common.BytesToHash(acct.CodeHash).Hex(),
Nonce: acct.Nonce,
}, nil
}
@ -68,7 +71,6 @@ func (k Keeper) CosmosAccount(c context.Context, req *types.QueryCosmosAccountRe
}
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
ethAddr := common.HexToAddress(req.Address)
cosmosAddr := sdk.AccAddress(ethAddr.Bytes())
@ -99,7 +101,6 @@ func (k Keeper) ValidatorAccount(c context.Context, req *types.QueryValidatorAcc
}
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
validator, found := k.stakingKeeper.GetValidatorByConsAddr(ctx, consAddr)
if !found {
@ -135,9 +136,8 @@ func (k Keeper) Balance(c context.Context, req *types.QueryBalanceRequest) (*typ
}
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
balanceInt := k.GetBalance(common.HexToAddress(req.Address))
balanceInt := k.GetBalance(ctx, common.HexToAddress(req.Address))
return &types.QueryBalanceResponse{
Balance: balanceInt.String(),
@ -158,12 +158,11 @@ func (k Keeper) Storage(c context.Context, req *types.QueryStorageRequest) (*typ
}
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
address := common.HexToAddress(req.Address)
key := common.HexToHash(req.Key)
state := k.GetState(address, key)
state := k.GetState(ctx, address, key)
stateHex := state.Hex()
return &types.QueryStorageResponse{
@ -185,10 +184,17 @@ func (k Keeper) Code(c context.Context, req *types.QueryCodeRequest) (*types.Que
}
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
address := common.HexToAddress(req.Address)
code := k.GetCode(address)
acct, err := k.GetAccountWithoutBalance(ctx, address)
if err != nil {
return nil, status.Error(codes.InvalidArgument, err.Error())
}
var code []byte
if acct != nil && acct.IsContract() {
code = k.GetCode(ctx, common.BytesToHash(acct.CodeHash))
}
return &types.QueryCodeResponse{
Code: code,
@ -212,7 +218,6 @@ func (k Keeper) EthCall(c context.Context, req *types.EthCallRequest) (*types.Ms
}
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
var args types.TransactionArgs
err := json.Unmarshal(req.Args, &args)
@ -226,7 +231,7 @@ func (k Keeper) EthCall(c context.Context, req *types.EthCallRequest) (*types.Ms
}
// ApplyMessageWithConfig expect correct nonce set in msg
nonce := k.GetNonce(args.GetFrom())
nonce := k.GetNonce(ctx, args.GetFrom())
args.Nonce = (*hexutil.Uint64)(&nonce)
msg, err := args.ToMessage(req.GasCap, cfg.BaseFee)
@ -234,7 +239,10 @@ func (k Keeper) EthCall(c context.Context, req *types.EthCallRequest) (*types.Ms
return nil, status.Error(codes.InvalidArgument, err.Error())
}
res, err := k.ApplyMessageWithConfig(msg, nil, false, cfg)
txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash()))
// pass false to not commit StateDB
res, err := k.ApplyMessageWithConfig(ctx, msg, nil, false, cfg, txConfig)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
@ -249,7 +257,6 @@ func (k Keeper) EstimateGas(c context.Context, req *types.EthCallRequest) (*type
}
ctx := sdk.UnwrapSDKContext(c)
k.WithContext(ctx)
if req.GasCap < ethparams.TxGas {
return nil, status.Error(codes.InvalidArgument, "gas cap cannot be lower than 21,000")
@ -295,23 +302,22 @@ func (k Keeper) EstimateGas(c context.Context, req *types.EthCallRequest) (*type
}
// ApplyMessageWithConfig expect correct nonce set in msg
nonce := k.GetNonce(args.GetFrom())
nonce := k.GetNonce(ctx, args.GetFrom())
args.Nonce = (*hexutil.Uint64)(&nonce)
txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes()))
// Create a helper to check if a gas allowance results in an executable transaction
executable := func(gas uint64) (vmerror bool, rsp *types.MsgEthereumTxResponse, err error) {
args.Gas = (*hexutil.Uint64)(&gas)
// Reset to the initial context
k.WithContext(ctx)
msg, err := args.ToMessage(req.GasCap, cfg.BaseFee)
if err != nil {
return false, nil, err
}
rsp, err = k.ApplyMessageWithConfig(msg, nil, false, cfg)
// pass false to not commit StateDB
rsp, err = k.ApplyMessageWithConfig(ctx, msg, nil, false, cfg, txConfig)
if err != nil {
if errors.Is(err, core.ErrIntrinsicGas) {
return true, nil, nil // Special case, raise gas limit
@ -363,30 +369,33 @@ func (k Keeper) TraceTx(c context.Context, req *types.QueryTraceTxRequest) (*typ
ctx = ctx.WithBlockHeight(req.BlockNumber)
ctx = ctx.WithBlockTime(req.BlockTime)
ctx = ctx.WithHeaderHash(common.Hex2Bytes(req.BlockHash))
k.WithContext(ctx)
cfg, err := k.EVMConfig(ctx)
if err != nil {
return nil, status.Error(codes.Internal, "failed to load evm config")
return nil, status.Errorf(codes.Internal, "failed to load evm config: %s", err.Error())
}
signer := ethtypes.MakeSigner(cfg.ChainConfig, big.NewInt(ctx.BlockHeight()))
txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes()))
for i, tx := range req.Predecessors {
ethTx := tx.AsTransaction()
msg, err := ethTx.AsMessage(signer, cfg.BaseFee)
if err != nil {
continue
}
k.SetTxHashTransient(ethTx.Hash())
k.SetTxIndexTransient(uint64(i))
if _, err := k.ApplyMessageWithConfig(msg, types.NewNoOpTracer(), true, cfg); err != nil {
txConfig.TxHash = ethTx.Hash()
txConfig.TxIndex = uint(i)
rsp, err := k.ApplyMessageWithConfig(ctx, msg, types.NewNoOpTracer(), true, cfg, txConfig)
if err != nil {
continue
}
txConfig.LogIndex += uint(len(rsp.Logs))
}
tx := req.Msg.AsTransaction()
result, err := k.traceTx(ctx, cfg, signer, req.TxIndex, tx, req.TraceConfig, false)
txConfig.TxHash = tx.Hash()
txConfig.TxIndex++
result, _, err := k.traceTx(ctx, cfg, txConfig, signer, tx, req.TraceConfig, false)
if err != nil {
// error will be returned with detail status from traceTx
return nil, err
@ -418,7 +427,6 @@ func (k Keeper) TraceBlock(c context.Context, req *types.QueryTraceBlockRequest)
ctx = ctx.WithBlockHeight(req.BlockNumber)
ctx = ctx.WithBlockTime(req.BlockTime)
ctx = ctx.WithHeaderHash(common.Hex2Bytes(req.BlockHash))
k.WithContext(ctx)
cfg, err := k.EVMConfig(ctx)
if err != nil {
@ -428,14 +436,18 @@ func (k Keeper) TraceBlock(c context.Context, req *types.QueryTraceBlockRequest)
txsLength := len(req.Txs)
results := make([]*types.TxTraceResult, 0, txsLength)
txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash().Bytes()))
for i, tx := range req.Txs {
result := types.TxTraceResult{}
ethTx := tx.AsTransaction()
traceResult, err := k.traceTx(ctx, cfg, signer, uint64(i), ethTx, req.TraceConfig, true)
txConfig.TxHash = ethTx.Hash()
txConfig.TxIndex = uint(i)
traceResult, logIndex, err := k.traceTx(ctx, cfg, txConfig, signer, ethTx, req.TraceConfig, true)
if err != nil {
result.Error = err.Error()
continue
}
txConfig.LogIndex = logIndex
result.Result = traceResult
results = append(results, &result)
}
@ -450,15 +462,16 @@ func (k Keeper) TraceBlock(c context.Context, req *types.QueryTraceBlockRequest)
}, nil
}
// traceTx do trace on one transaction, it returns a tuple: (traceResult, nextLogIndex, error).
func (k *Keeper) traceTx(
ctx sdk.Context,
cfg *types.EVMConfig,
txConfig statedb.TxConfig,
signer ethtypes.Signer,
txIndex uint64,
tx *ethtypes.Transaction,
traceConfig *types.TraceConfig,
commitMessage bool,
) (*interface{}, error) {
) (*interface{}, uint, error) {
// Assemble the structured logger or the JavaScript tracer
var (
tracer vm.Tracer
@ -468,11 +481,9 @@ func (k *Keeper) traceTx(
msg, err := tx.AsMessage(signer, cfg.BaseFee)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
return nil, 0, status.Error(codes.Internal, err.Error())
}
txHash := tx.Hash()
if traceConfig != nil && traceConfig.Overrides != nil {
overrides = traceConfig.Overrides.EthereumConfig(cfg.ChainConfig.ChainID)
}
@ -485,19 +496,19 @@ func (k *Keeper) traceTx(
if traceConfig.Timeout != "" {
timeout, err = time.ParseDuration(traceConfig.Timeout)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "timeout value: %s", err.Error())
return nil, 0, status.Errorf(codes.InvalidArgument, "timeout value: %s", err.Error())
}
}
tCtx := &tracers.Context{
BlockHash: k.GetHashFn()(uint64(ctx.BlockHeight())),
TxIndex: int(txIndex),
TxHash: txHash,
BlockHash: txConfig.BlockHash,
TxIndex: int(txConfig.TxIndex),
TxHash: txConfig.TxHash,
}
// Construct the JavaScript tracer to execute with
if tracer, err = tracers.New(traceConfig.Tracer, tCtx); err != nil {
return nil, status.Error(codes.Internal, err.Error())
return nil, 0, status.Error(codes.Internal, err.Error())
}
// Handle timeouts and RPC cancellations
@ -526,12 +537,9 @@ func (k *Keeper) traceTx(
tracer = types.NewTracer(types.TracerStruct, msg, cfg.ChainConfig, ctx.BlockHeight())
}
k.SetTxHashTransient(txHash)
k.SetTxIndexTransient(txIndex)
res, err := k.ApplyMessageWithConfig(msg, tracer, commitMessage, cfg)
res, err := k.ApplyMessageWithConfig(ctx, msg, tracer, commitMessage, cfg, txConfig)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
return nil, 0, status.Error(codes.Internal, err.Error())
}
var result interface{}
@ -549,12 +557,12 @@ func (k *Keeper) traceTx(
case *tracers.Tracer:
result, err = tracer.GetResult()
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
return nil, 0, status.Error(codes.Internal, err.Error())
}
default:
return nil, status.Errorf(codes.InvalidArgument, "invalid tracer type %T", tracer)
return nil, 0, status.Errorf(codes.InvalidArgument, "invalid tracer type %T", tracer)
}
return &result, nil
return &result, txConfig.LogIndex + uint(len(res.Logs)), nil
}

69
x/evm/keeper/grpc_query_test.go
View File

@ -7,7 +7,9 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/tharsis/ethermint/x/evm/statedb"
sdk "github.com/cosmos/cosmos-sdk/types"
@ -232,12 +234,12 @@ func (suite *KeeperTestSuite) TestQueryStorage() {
testCases := []struct {
msg string
malleate func()
malleate func(vm.StateDB)
expPass bool
}{
{
"invalid address",
func() {
func(vm.StateDB) {
req = &types.QueryStorageRequest{
Address: invalidAddress,
}
@ -246,11 +248,11 @@ func (suite *KeeperTestSuite) TestQueryStorage() {
},
{
"success",
func() {
func(vmdb vm.StateDB) {
key := common.BytesToHash([]byte("key"))
value := common.BytesToHash([]byte("value"))
expValue = value.String()
suite.app.EvmKeeper.SetState(suite.address, key, value)
vmdb.SetState(suite.address, key, value)
req = &types.QueryStorageRequest{
Address: suite.address.String(),
Key: key.String(),
@ -264,7 +266,10 @@ func (suite *KeeperTestSuite) TestQueryStorage() {
suite.Run(fmt.Sprintf("Case %s", tc.msg), func() {
suite.SetupTest() // reset
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
suite.Require().NoError(vmdb.Commit())
ctx := sdk.WrapSDKContext(suite.ctx)
res, err := suite.queryClient.Storage(ctx, req)
@ -288,12 +293,12 @@ func (suite *KeeperTestSuite) TestQueryCode() {
testCases := []struct {
msg string
malleate func()
malleate func(vm.StateDB)
expPass bool
}{
{
"invalid address",
func() {
func(vm.StateDB) {
req = &types.QueryCodeRequest{
Address: invalidAddress,
}
@ -304,9 +309,9 @@ func (suite *KeeperTestSuite) TestQueryCode() {
},
{
"success",
func() {
func(vmdb vm.StateDB) {
expCode = []byte("code")
suite.app.EvmKeeper.SetCode(suite.address, expCode)
vmdb.SetCode(suite.address, expCode)
req = &types.QueryCodeRequest{
Address: suite.address.String(),
@ -320,7 +325,10 @@ func (suite *KeeperTestSuite) TestQueryCode() {
suite.Run(fmt.Sprintf("Case %s", tc.msg), func() {
suite.SetupTest() // reset
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
suite.Require().NoError(vmdb.Commit())
ctx := sdk.WrapSDKContext(suite.ctx)
res, err := suite.queryClient.Code(ctx, req)
@ -338,26 +346,25 @@ func (suite *KeeperTestSuite) TestQueryCode() {
func (suite *KeeperTestSuite) TestQueryTxLogs() {
var (
txHash common.Hash
expLogs []*types.Log
)
txHash := common.BytesToHash([]byte("tx_hash"))
txIndex := uint(1)
logIndex := uint(1)
testCases := []struct {
msg string
malleate func()
malleate func(vm.StateDB)
}{
{
"empty logs",
func() {
txHash = common.BytesToHash([]byte("hash"))
func(vm.StateDB) {
expLogs = nil
},
},
{
"success",
func() {
txHash = common.BytesToHash([]byte("tx_hash"))
func(vmdb vm.StateDB) {
expLogs = []*types.Log{
{
Address: suite.address.String(),
@ -365,17 +372,15 @@ func (suite *KeeperTestSuite) TestQueryTxLogs() {
Data: []byte("data"),
BlockNumber: 1,
TxHash: txHash.String(),
TxIndex: 1,
TxIndex: uint64(txIndex),
BlockHash: common.BytesToHash(suite.ctx.HeaderHash()).Hex(),
Index: 0,
Index: uint64(logIndex),
Removed: false,
},
}
suite.app.EvmKeeper.SetTxHashTransient(txHash)
suite.app.EvmKeeper.IncreaseTxIndexTransient()
for _, log := range types.LogsToEthereum(expLogs) {
suite.app.EvmKeeper.AddLog(log)
vmdb.AddLog(log)
}
},
},
@ -385,8 +390,11 @@ func (suite *KeeperTestSuite) TestQueryTxLogs() {
suite.Run(fmt.Sprintf("Case %s", tc.msg), func() {
suite.SetupTest() // reset
tc.malleate()
logs := suite.app.EvmKeeper.GetTxLogsTransient(txHash)
vmdb := statedb.New(suite.ctx, suite.app.EvmKeeper, statedb.NewTxConfig(common.BytesToHash(suite.ctx.HeaderHash().Bytes()), txHash, txIndex, logIndex))
tc.malleate(vmdb)
suite.Require().NoError(vmdb.Commit())
logs := vmdb.Logs()
suite.Require().Equal(expLogs, types.NewLogsFromEth(logs))
})
}
@ -680,8 +688,11 @@ func (suite *KeeperTestSuite) TestTraceTx() {
malleate: func() {
txIndex = 1
traceConfig = nil
// increase nonce to avoid address collision
suite.app.EvmKeeper.SetNonce(suite.address, suite.app.EvmKeeper.GetNonce(suite.address)+1)
vmdb := suite.StateDB()
vmdb.SetNonce(suite.address, vmdb.GetNonce(suite.address)+1)
suite.Require().NoError(vmdb.Commit())
contractAddr := suite.DeployTestContract(suite.T(), suite.address, sdk.NewIntWithDecimal(1000, 18).BigInt())
suite.Commit()
@ -807,8 +818,12 @@ func (suite *KeeperTestSuite) TestTraceBlock() {
msg: "tracer with multiple transactions",
malleate: func() {
traceConfig = nil
// increase nonce to avoid address collision
suite.app.EvmKeeper.SetNonce(suite.address, suite.app.EvmKeeper.GetNonce(suite.address)+1)
vmdb := suite.StateDB()
vmdb.SetNonce(suite.address, vmdb.GetNonce(suite.address)+1)
suite.Require().NoError(vmdb.Commit())
contractAddr := suite.DeployTestContract(suite.T(), suite.address, sdk.NewIntWithDecimal(1000, 18).BigInt())
suite.Commit()
// create multiple transactions in the same block
@ -867,7 +882,7 @@ func (suite *KeeperTestSuite) TestNonceInQuery() {
priv, err := ethsecp256k1.GenerateKey()
suite.Require().NoError(err)
address := common.BytesToAddress(priv.PubKey().Address().Bytes())
suite.Require().Equal(uint64(0), suite.app.EvmKeeper.GetNonce(address))
suite.Require().Equal(uint64(0), suite.app.EvmKeeper.GetNonce(suite.ctx, address))
supply := sdk.NewIntWithDecimal(1000, 18).BigInt()
// accupy nonce 0

16
x/evm/keeper/hooks_test.go
View File

@ -9,6 +9,7 @@ import (
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/tharsis/ethermint/x/evm/keeper"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
)
@ -62,18 +63,25 @@ func (suite *KeeperTestSuite) TestEvmHooks() {
suite.app.EvmKeeper.SetHooks(keeper.NewMultiEvmHooks(hook))
k := suite.app.EvmKeeper
ctx := suite.ctx
txHash := common.BigToHash(big.NewInt(1))
k.SetTxHashTransient(txHash)
k.AddLog(&ethtypes.Log{
vmdb := statedb.New(ctx, k, statedb.NewTxConfig(
common.BytesToHash(ctx.HeaderHash().Bytes()),
txHash,
0,
0,
))
vmdb.AddLog(&ethtypes.Log{
Topics: []common.Hash{},
Address: suite.address,
})
logs := k.GetTxLogsTransient(txHash)
logs := vmdb.Logs()
receipt := &ethtypes.Receipt{
TxHash: txHash,
Logs: logs,
}
result := k.PostTxProcessing(common.Address{}, nil, receipt)
result := k.PostTxProcessing(ctx, common.Address{}, nil, receipt)
tc.expFunc(hook, result)
}

256
x/evm/keeper/keeper.go
View File

@ -1,21 +1,22 @@
package keeper
import (
"errors"
"math/big"
"github.com/cosmos/cosmos-sdk/codec"
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
"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"
"github.com/tendermint/tendermint/libs/log"
"github.com/ethereum/go-ethereum/params"
ethermint "github.com/tharsis/ethermint/types"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
)
@ -44,12 +45,6 @@ type Keeper struct {
// fetch EIP1559 base fee and parameters
feeMarketKeeper types.FeeMarketKeeper
// Manage the initial context and cache context stack for accessing the store,
// emit events and log info.
// It is kept as a field to make is accessible by the StateDb
// functions. Resets on every transaction/block.
ctxStack ContextStack
// chain ID number obtained from the context's chain id
eip155ChainID *big.Int
@ -58,9 +53,6 @@ type Keeper struct {
// EVM Hooks for tx post-processing
hooks types.EvmHooks
// error from previous state operation
stateErr error
}
// NewKeeper generates new evm module keeper
@ -92,35 +84,14 @@ func NewKeeper(
storeKey: storeKey,
transientKey: transientKey,
tracer: tracer,
stateErr: nil,
}
}
// Ctx returns the current context from the context stack.
func (k Keeper) Ctx() sdk.Context {
return k.ctxStack.CurrentContext()
}
// CommitCachedContexts commit all the cache contexts created by `StateDB.Snapshot`.
func (k *Keeper) CommitCachedContexts() {
k.ctxStack.Commit()
}
// CachedContextsEmpty returns true if there's no cache contexts.
func (k *Keeper) CachedContextsEmpty() bool {
return k.ctxStack.IsEmpty()
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", types.ModuleName)
}
// WithContext clears the context stack, and set the initial context.
func (k *Keeper) WithContext(ctx sdk.Context) {
k.ctxStack.Reset(ctx)
}
// WithChainID sets the chain id to the local variable in the keeper
func (k *Keeper) WithChainID(ctx sdk.Context) {
chainID, err := ethermint.ParseChainID(ctx.ChainID())
@ -156,9 +127,9 @@ func (k Keeper) EmitBlockBloomEvent(ctx sdk.Context, bloom ethtypes.Bloom) {
}
// GetBlockBloomTransient returns bloom bytes for the current block height
func (k Keeper) GetBlockBloomTransient() *big.Int {
store := prefix.NewStore(k.Ctx().TransientStore(k.transientKey), types.KeyPrefixTransientBloom)
heightBz := sdk.Uint64ToBigEndian(uint64(k.Ctx().BlockHeight()))
func (k Keeper) GetBlockBloomTransient(ctx sdk.Context) *big.Int {
store := prefix.NewStore(ctx.TransientStore(k.transientKey), types.KeyPrefixTransientBloom)
heightBz := sdk.Uint64ToBigEndian(uint64(ctx.BlockHeight()))
bz := store.Get(heightBz)
if len(bz) == 0 {
return big.NewInt(0)
@ -169,9 +140,9 @@ func (k Keeper) GetBlockBloomTransient() *big.Int {
// SetBlockBloomTransient sets the given bloom bytes to the transient store. This value is reset on
// every block.
func (k Keeper) SetBlockBloomTransient(bloom *big.Int) {
store := prefix.NewStore(k.Ctx().TransientStore(k.transientKey), types.KeyPrefixTransientBloom)
heightBz := sdk.Uint64ToBigEndian(uint64(k.Ctx().BlockHeight()))
func (k Keeper) SetBlockBloomTransient(ctx sdk.Context, bloom *big.Int) {
store := prefix.NewStore(ctx.TransientStore(k.transientKey), types.KeyPrefixTransientBloom)
heightBz := sdk.Uint64ToBigEndian(uint64(ctx.BlockHeight()))
store.Set(heightBz, bloom.Bytes())
}
@ -179,32 +150,15 @@ func (k Keeper) SetBlockBloomTransient(bloom *big.Int) {
// Tx
// ----------------------------------------------------------------------------
// GetTxHashTransient returns the hash of current processing transaction
func (k Keeper) GetTxHashTransient() common.Hash {
store := k.Ctx().TransientStore(k.transientKey)
bz := store.Get(types.KeyPrefixTransientTxHash)
if len(bz) == 0 {
return common.Hash{}
}
return common.BytesToHash(bz)
}
// SetTxHashTransient set the hash of processing transaction
func (k Keeper) SetTxHashTransient(hash common.Hash) {
store := k.Ctx().TransientStore(k.transientKey)
store.Set(types.KeyPrefixTransientTxHash, hash.Bytes())
}
// SetTxIndexTransient set the index of processing transaction
func (k Keeper) SetTxIndexTransient(index uint64) {
store := k.Ctx().TransientStore(k.transientKey)
func (k Keeper) SetTxIndexTransient(ctx sdk.Context, index uint64) {
store := ctx.TransientStore(k.transientKey)
store.Set(types.KeyPrefixTransientTxIndex, sdk.Uint64ToBigEndian(index))
}
// GetTxIndexTransient returns EVM transaction index on the current block.
func (k Keeper) GetTxIndexTransient() uint64 {
store := k.Ctx().TransientStore(k.transientKey)
func (k Keeper) GetTxIndexTransient(ctx sdk.Context) uint64 {
store := ctx.TransientStore(k.transientKey)
bz := store.Get(types.KeyPrefixTransientTxIndex)
if len(bz) == 0 {
return 0
@ -213,61 +167,13 @@ func (k Keeper) GetTxIndexTransient() uint64 {
return sdk.BigEndianToUint64(bz)
}
// IncreaseTxIndexTransient fetches the current EVM tx index from the transient store, increases its
// value by one and then sets the new index back to the transient store.
func (k Keeper) IncreaseTxIndexTransient() {
txIndex := k.GetTxIndexTransient()
k.SetTxIndexTransient(txIndex + 1)
}
// ResetRefundTransient resets the available refund amount to 0
func (k Keeper) ResetRefundTransient(ctx sdk.Context) {
store := ctx.TransientStore(k.transientKey)
store.Set(types.KeyPrefixTransientRefund, sdk.Uint64ToBigEndian(0))
}
// ----------------------------------------------------------------------------
// Log
// ----------------------------------------------------------------------------
// GetTxLogsTransient returns the current logs for a given transaction hash from the KVStore.
// This function returns an empty, non-nil slice if no logs are found.
func (k Keeper) GetTxLogsTransient(txHash common.Hash) []*ethtypes.Log {
store := prefix.NewStore(k.Ctx().TransientStore(k.transientKey), types.KeyPrefixTransientTxLogs)
// We store the logs with key equal to txHash.Bytes() | sdk.Uint64ToBigEndian(uint64(log.Index)),
// therefore, we set the end boundary(excluded) to txHash.Bytes() | uint64.Max -> []byte
end := txHash.Bytes()
end = append(end, []byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}...)
iter := store.Iterator(txHash.Bytes(), end)
defer iter.Close()
logs := []*ethtypes.Log{}
for ; iter.Valid(); iter.Next() {
var log types.Log
k.cdc.MustUnmarshal(iter.Value(), &log)
logs = append(logs, log.ToEthereum())
}
return logs
}
// SetLog sets the log for a transaction in the KVStore.
func (k Keeper) AddLogTransient(log *ethtypes.Log) {
store := prefix.NewStore(k.Ctx().TransientStore(k.transientKey), types.KeyPrefixTransientTxLogs)
key := log.TxHash.Bytes()
key = append(key, sdk.Uint64ToBigEndian(uint64(log.Index))...)
txIndexLog := types.NewLogFromEth(log)
bz := k.cdc.MustMarshal(txIndexLog)
store.Set(key, bz)
}
// GetLogSizeTransient returns EVM log index on the current block.
func (k Keeper) GetLogSizeTransient() uint64 {
store := k.Ctx().TransientStore(k.transientKey)
func (k Keeper) GetLogSizeTransient(ctx sdk.Context) uint64 {
store := ctx.TransientStore(k.transientKey)
bz := store.Get(types.KeyPrefixTransientLogSize)
if len(bz) == 0 {
return 0
@ -276,12 +182,11 @@ func (k Keeper) GetLogSizeTransient() uint64 {
return sdk.BigEndianToUint64(bz)
}
// IncreaseLogSizeTransient fetches the current EVM log index from the transient store, increases its
// SetLogSizeTransient fetches the current EVM log index from the transient store, increases its
// value by one and then sets the new index back to the transient store.
func (k Keeper) IncreaseLogSizeTransient() {
logSize := k.GetLogSizeTransient()
store := k.Ctx().TransientStore(k.transientKey)
store.Set(types.KeyPrefixTransientLogSize, sdk.Uint64ToBigEndian(logSize+1))
func (k Keeper) SetLogSizeTransient(ctx sdk.Context, logSize uint64) {
store := ctx.TransientStore(k.transientKey)
store.Set(types.KeyPrefixTransientLogSize, sdk.Uint64ToBigEndian(logSize))
}
// ----------------------------------------------------------------------------
@ -289,70 +194,23 @@ func (k Keeper) IncreaseLogSizeTransient() {
// ----------------------------------------------------------------------------
// GetAccountStorage return state storage associated with an account
func (k Keeper) GetAccountStorage(ctx sdk.Context, address common.Address) (types.Storage, error) {
func (k Keeper) GetAccountStorage(ctx sdk.Context, address common.Address) types.Storage {
storage := types.Storage{}
err := k.ForEachStorage(address, func(key, value common.Hash) bool {
k.ForEachStorage(ctx, address, func(key, value common.Hash) bool {
storage = append(storage, types.NewState(key, value))
return true
})
if err != nil {
return types.Storage{}, err
}
return storage, nil
return storage
}
// ----------------------------------------------------------------------------
// Account
// ----------------------------------------------------------------------------
func (k Keeper) DeleteState(addr common.Address, key common.Hash) {
store := prefix.NewStore(k.Ctx().KVStore(k.storeKey), types.AddressStoragePrefix(addr))
store.Delete(key.Bytes())
}
// DeleteAccountStorage clears all the storage state associated with the given address.
func (k Keeper) DeleteAccountStorage(addr common.Address) {
_ = k.ForEachStorage(addr, func(key, _ common.Hash) bool {
k.DeleteState(addr, key)
return true
})
}
// DeleteCode removes the contract code byte array from the store associated with
// the given address and empties CodeHash on account.
func (k Keeper) DeleteCode(addr common.Address) {
k.SetCode(addr, nil)
}
// ClearBalance subtracts the EVM all the balance denomination from the address
// balance while also updating the total supply.
func (k Keeper) ClearBalance(addr sdk.AccAddress) (prevBalance sdk.Coin, err error) {
params := k.GetParams(k.Ctx())
prevBalance = k.bankKeeper.GetBalance(k.Ctx(), addr, params.EvmDenom)
if prevBalance.IsPositive() {
if err := k.bankKeeper.SendCoinsFromAccountToModule(k.Ctx(), addr, types.ModuleName, sdk.Coins{prevBalance}); err != nil {
return sdk.Coin{}, sdkerrors.Wrap(err, "failed to transfer to module account")
}
if err := k.bankKeeper.BurnCoins(k.Ctx(), types.ModuleName, sdk.Coins{prevBalance}); err != nil {
return sdk.Coin{}, sdkerrors.Wrap(err, "failed to burn coins from evm module account")
}
}
return prevBalance, nil
}
// ResetAccount removes the code, storage state, but keep all the native tokens stored
// with the given address.
func (k Keeper) ResetAccount(addr common.Address) {
k.DeleteCode(addr)
k.DeleteAccountStorage(addr)
}
// SetHooks sets the hooks for the EVM module
// It should be called only once during initialization, it panic if called more than once.
func (k *Keeper) SetHooks(eh types.EvmHooks) *Keeper {
if k.hooks != nil {
panic("cannot set evm hooks twice")
@ -363,16 +221,76 @@ func (k *Keeper) SetHooks(eh types.EvmHooks) *Keeper {
}
// PostTxProcessing delegate the call to the hooks. If no hook has been registered, this function returns with a `nil` error
func (k *Keeper) PostTxProcessing(from common.Address, to *common.Address, receipt *ethtypes.Receipt) error {
func (k *Keeper) PostTxProcessing(ctx sdk.Context, from common.Address, to *common.Address, receipt *ethtypes.Receipt) error {
if k.hooks == nil {
return nil
}
return k.hooks.PostTxProcessing(k.Ctx(), from, to, receipt)
return k.hooks.PostTxProcessing(ctx, from, to, receipt)
}
// Tracer return a default vm.Tracer based on current keeper state
func (k Keeper) Tracer(msg core.Message, ethCfg *params.ChainConfig) vm.Tracer {
return types.NewTracer(k.tracer, msg, ethCfg, k.Ctx().BlockHeight())
func (k Keeper) Tracer(ctx sdk.Context, msg core.Message, ethCfg *params.ChainConfig) vm.Tracer {
return types.NewTracer(k.tracer, msg, ethCfg, ctx.BlockHeight())
}
// GetAccountWithoutBalance load nonce and codehash without balance,
// more efficient in cases where balance is not needed.
func (k *Keeper) GetAccountWithoutBalance(ctx sdk.Context, addr common.Address) (*statedb.Account, error) {
cosmosAddr := sdk.AccAddress(addr.Bytes())
acct := k.accountKeeper.GetAccount(ctx, cosmosAddr)
if acct == nil {
return nil, nil
}
ethAcct, ok := acct.(*ethermint.EthAccount)
if !ok {
return nil, errors.New("not EthAccount")
}
return &statedb.Account{
Nonce: ethAcct.Sequence,
CodeHash: common.FromHex(ethAcct.CodeHash),
}, nil
}
// GetAccountOrEmpty returns empty account if not exist, returns error if it's not `EthAccount`
func (k *Keeper) GetAccountOrEmpty(ctx sdk.Context, addr common.Address) (statedb.Account, error) {
acct, err := k.GetAccount(ctx, addr)
if err != nil {
return statedb.Account{}, err
}
if acct == nil {
// empty account
return statedb.Account{
Balance: new(big.Int),
CodeHash: types.EmptyCodeHash,
}, nil
}
return *acct, nil
}
// GetNonce returns the sequence number of an account, returns 0 if not exists.
func (k *Keeper) GetNonce(ctx sdk.Context, addr common.Address) uint64 {
cosmosAddr := sdk.AccAddress(addr.Bytes())
acct := k.accountKeeper.GetAccount(ctx, cosmosAddr)
if acct == nil {
return 0
}
ethAcct, ok := acct.(*ethermint.EthAccount)
if !ok {
return 0
}
return ethAcct.Sequence
}
// GetBalance load account's balance of gas token
func (k *Keeper) GetBalance(ctx sdk.Context, addr common.Address) *big.Int {
cosmosAddr := sdk.AccAddress(addr.Bytes())
params := k.GetParams(ctx)
coin := k.bankKeeper.GetBalance(ctx, cosmosAddr, params.EvmDenom)
return coin.Amount.BigInt()
}
// BaseFee returns current base fee, return values:

13
x/evm/keeper/keeper_test.go
View File

@ -29,6 +29,7 @@ import (
"github.com/tharsis/ethermint/server/config"
"github.com/tharsis/ethermint/tests"
ethermint "github.com/tharsis/ethermint/types"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
"github.com/ethereum/go-ethereum/common"
@ -153,7 +154,6 @@ func (suite *KeeperTestSuite) DoSetupTest(t require.TestingT) {
ConsensusHash: tmhash.Sum([]byte("consensus")),
LastResultsHash: tmhash.Sum([]byte("last_result")),
})
suite.app.EvmKeeper.WithContext(suite.ctx)
queryHelper := baseapp.NewQueryServerTestHelper(suite.ctx, suite.app.InterfaceRegistry())
types.RegisterQueryServer(queryHelper, suite.app.EvmKeeper)
@ -201,13 +201,16 @@ func (suite *KeeperTestSuite) Commit() {
// update ctx
suite.ctx = suite.app.BaseApp.NewContext(false, header)
suite.app.EvmKeeper.WithContext(suite.ctx)
queryHelper := baseapp.NewQueryServerTestHelper(suite.ctx, suite.app.InterfaceRegistry())
types.RegisterQueryServer(queryHelper, suite.app.EvmKeeper)
suite.queryClient = types.NewQueryClient(queryHelper)
}
func (suite *KeeperTestSuite) StateDB() *statedb.StateDB {
return statedb.New(suite.ctx, suite.app.EvmKeeper, statedb.NewEmptyTxConfig(common.BytesToHash(suite.ctx.HeaderHash().Bytes())))
}
// DeployTestContract deploy a test erc20 contract and returns the contract address
func (suite *KeeperTestSuite) DeployTestContract(t require.TestingT, owner common.Address, supply *big.Int) common.Address {
ctx := sdk.WrapSDKContext(suite.ctx)
@ -216,7 +219,7 @@ func (suite *KeeperTestSuite) DeployTestContract(t require.TestingT, owner commo
ctorArgs, err := types.ERC20Contract.ABI.Pack("", owner, supply)
require.NoError(t, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
data := append(types.ERC20Contract.Bin, ctorArgs...)
args, err := json.Marshal(&types.TransactionArgs{
@ -280,7 +283,7 @@ func (suite *KeeperTestSuite) TransferERC20Token(t require.TestingT, contractAdd
})
require.NoError(t, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
var ercTransferTx *types.MsgEthereumTx
if suite.enableFeemarket {
@ -337,7 +340,7 @@ func (suite *KeeperTestSuite) DeployTestMessageCall(t require.TestingT) common.A
})
require.NoError(t, err)
nonce := suite.app.EvmKeeper.GetNonce(suite.address)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
var erc20DeployTx *types.MsgEthereumTx
if suite.enableFeemarket {

5
x/evm/keeper/msg_server.go
View File

@ -23,13 +23,12 @@ var _ types.MsgServer = &Keeper{}
// parameter.
func (k *Keeper) EthereumTx(goCtx context.Context, msg *types.MsgEthereumTx) (*types.MsgEthereumTxResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
k.WithContext(ctx)
sender := msg.From
tx := msg.AsTransaction()
txIndex := k.GetTxIndexTransient()
txIndex := k.GetTxIndexTransient(ctx)
response, err := k.ApplyTransaction(tx)
response, err := k.ApplyTransaction(ctx, tx)
if err != nil {
return nil, sdkerrors.Wrap(err, "failed to apply transaction")
}

181
x/evm/keeper/state_transition.go
View File

@ -12,6 +12,7 @@ import (
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
ethermint "github.com/tharsis/ethermint/types"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
"github.com/ethereum/go-ethereum/common"
@ -22,6 +23,18 @@ import (
"github.com/ethereum/go-ethereum/params"
)
// GasToRefund calculates the amount of gas the state machine should refund to the sender. It is
// capped by the refund quotient value.
// Note: do not pass 0 to refundQuotient
func GasToRefund(availableRefund, gasConsumed, refundQuotient uint64) uint64 {
// Apply refund counter
refund := gasConsumed / refundQuotient
if refund > availableRefund {
return availableRefund
}
return refund
}
// EVMConfig creates the EVMConfig based on current state
func (k *Keeper) EVMConfig(ctx sdk.Context) (*types.EVMConfig, error) {
params := k.GetParams(ctx)
@ -42,39 +55,51 @@ func (k *Keeper) EVMConfig(ctx sdk.Context) (*types.EVMConfig, error) {
}, nil
}
// TxConfig load `TxConfig` from current transient storage
func (k *Keeper) TxConfig(ctx sdk.Context, txHash common.Hash) statedb.TxConfig {
return statedb.NewTxConfig(
common.BytesToHash(ctx.HeaderHash()), // BlockHash
txHash, // TxHash
uint(k.GetTxIndexTransient(ctx)), // TxIndex
uint(k.GetLogSizeTransient(ctx)), // LogIndex
)
}
// NewEVM generates a go-ethereum VM from the provided Message fields and the chain parameters
// (ChainConfig and module Params). It additionally sets the validator operator address as the
// coinbase address to make it available for the COINBASE opcode, even though there is no
// beneficiary of the coinbase transaction (since we're not mining).
func (k *Keeper) NewEVM(
ctx sdk.Context,
msg core.Message,
cfg *types.EVMConfig,
tracer vm.Tracer,
stateDB vm.StateDB,
) *vm.EVM {
blockCtx := vm.BlockContext{
CanTransfer: core.CanTransfer,
Transfer: core.Transfer,
GetHash: k.GetHashFn(),
GetHash: k.GetHashFn(ctx),
Coinbase: cfg.CoinBase,
GasLimit: ethermint.BlockGasLimit(k.Ctx()),
BlockNumber: big.NewInt(k.Ctx().BlockHeight()),
Time: big.NewInt(k.Ctx().BlockHeader().Time.Unix()),
GasLimit: ethermint.BlockGasLimit(ctx),
BlockNumber: big.NewInt(ctx.BlockHeight()),
Time: big.NewInt(ctx.BlockHeader().Time.Unix()),
Difficulty: big.NewInt(0), // unused. Only required in PoW context
BaseFee: cfg.BaseFee,
}
txCtx := core.NewEVMTxContext(msg)
if tracer == nil {
tracer = k.Tracer(msg, cfg.ChainConfig)
tracer = k.Tracer(ctx, msg, cfg.ChainConfig)
}
vmConfig := k.VMConfig(cfg.Params, tracer)
return vm.NewEVM(blockCtx, txCtx, k, cfg.ChainConfig, vmConfig)
vmConfig := k.VMConfig(ctx, msg, cfg.Params, tracer)
return vm.NewEVM(blockCtx, txCtx, stateDB, cfg.ChainConfig, vmConfig)
}
// VMConfig creates an EVM configuration from the debug setting and the extra EIPs enabled on the
// module parameters. The config generated uses the default JumpTable from the EVM.
func (k Keeper) VMConfig(params types.Params, tracer vm.Tracer) vm.Config {
fmParams := k.feeMarketKeeper.GetParams(k.Ctx())
func (k Keeper) VMConfig(ctx sdk.Context, msg core.Message, params types.Params, tracer vm.Tracer) vm.Config {
fmParams := k.feeMarketKeeper.GetParams(ctx)
var debug bool
if _, ok := tracer.(types.NoOpTracer); !ok {
@ -94,10 +119,8 @@ func (k Keeper) VMConfig(params types.Params, tracer vm.Tracer) vm.Config {
// 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 (k Keeper) GetHashFn() vm.GetHashFunc {
func (k Keeper) GetHashFn(ctx sdk.Context) vm.GetHashFunc {
return func(height uint64) common.Hash {
ctx := k.Ctx()
h, err := ethermint.SafeInt64(height)
if err != nil {
k.Logger(ctx).Error("failed to cast height to int64", "error", err)
@ -165,21 +188,17 @@ func (k Keeper) GetHashFn() vm.GetHashFunc {
// returning.
//
// For relevant discussion see: https://github.com/cosmos/cosmos-sdk/discussions/9072
func (k *Keeper) ApplyTransaction(tx *ethtypes.Transaction) (*types.MsgEthereumTxResponse, error) {
func (k *Keeper) ApplyTransaction(ctx sdk.Context, tx *ethtypes.Transaction) (*types.MsgEthereumTxResponse, error) {
var (
bloom *big.Int
bloomReceipt ethtypes.Bloom
)
ctx := k.Ctx()
// ensure keeper state error is cleared
defer k.ClearStateError()
cfg, err := k.EVMConfig(ctx)
if err != nil {
return nil, sdkerrors.Wrap(err, "failed to load evm config")
}
txConfig := k.TxConfig(ctx, tx.Hash())
// get the signer according to the chain rules from the config and block height
signer := ethtypes.MakeSigner(cfg.ChainConfig, big.NewInt(ctx.BlockHeight()))
@ -188,38 +207,28 @@ func (k *Keeper) ApplyTransaction(tx *ethtypes.Transaction) (*types.MsgEthereumT
return nil, sdkerrors.Wrap(err, "failed to return ethereum transaction as core message")
}
txHash := tx.Hash()
// set the transaction hash and index to the impermanent (transient) block state so that it's also
// available on the StateDB functions (eg: AddLog)
k.SetTxHashTransient(txHash)
// snapshot to contain the tx processing and post processing in same scope
var commit func()
tmpCtx := ctx
if k.hooks != nil {
// Create a cache context to revert state when tx hooks fails,
// the cache context is only committed when both tx and hooks executed successfully.
// Didn't use `Snapshot` because the context stack has exponential complexity on certain operations,
// thus restricted to be used only inside `ApplyMessage`.
var cacheCtx sdk.Context
cacheCtx, commit = ctx.CacheContext()
k.WithContext(cacheCtx)
defer (func() {
k.WithContext(ctx)
})()
tmpCtx, commit = ctx.CacheContext()
}
res, err := k.ApplyMessageWithConfig(msg, nil, true, cfg)
// pass true to commit the StateDB
res, err := k.ApplyMessageWithConfig(tmpCtx, msg, nil, true, cfg, txConfig)
if err != nil {
return nil, sdkerrors.Wrap(err, "failed to apply ethereum core message")
}
res.Hash = txHash.Hex()
logs := k.GetTxLogsTransient(txHash)
logs := types.LogsToEthereum(res.Logs)
// Compute block bloom filter
if len(logs) > 0 {
bloom = k.GetBlockBloomTransient()
bloom = k.GetBlockBloomTransient(ctx)
bloom.Or(bloom, big.NewInt(0).SetBytes(ethtypes.LogsBloom(logs)))
bloomReceipt = ethtypes.BytesToBloom(bloom.Bytes())
}
@ -244,45 +253,42 @@ func (k *Keeper) ApplyTransaction(tx *ethtypes.Transaction) (*types.MsgEthereumT
CumulativeGasUsed: cumulativeGasUsed,
Bloom: bloomReceipt,
Logs: logs,
TxHash: txHash,
TxHash: txConfig.TxHash,
ContractAddress: contractAddr,
GasUsed: res.GasUsed,
BlockHash: common.BytesToHash(ctx.HeaderHash()),
BlockHash: txConfig.BlockHash,
BlockNumber: big.NewInt(ctx.BlockHeight()),
TransactionIndex: uint(k.GetTxIndexTransient()),
TransactionIndex: txConfig.TxIndex,
}
// Only call hooks if tx executed successfully.
if err = k.PostTxProcessing(msg.From(), tx.To(), receipt); err != nil {
if err = k.PostTxProcessing(tmpCtx, msg.From(), tx.To(), receipt); err != nil {
// If hooks return error, revert the whole tx.
res.VmError = types.ErrPostTxProcessing.Error()
k.Logger(ctx).Error("tx post processing failed", "error", err)
} else if commit != nil {
// PostTxProcessing is successful, commit the cache context
// PostTxProcessing is successful, commit the tmpCtx
commit()
ctx.EventManager().EmitEvents(k.Ctx().EventManager().Events())
ctx.EventManager().EmitEvents(tmpCtx.EventManager().Events())
}
}
// change to original context
k.WithContext(ctx)
// refund gas according to Ethereum gas accounting rules.
if err := k.RefundGas(msg, msg.Gas()-res.GasUsed, cfg.Params.EvmDenom); err != nil {
// refund gas in order to match the Ethereum gas consumption instead of the default SDK one.
if err = k.RefundGas(ctx, msg, msg.Gas()-res.GasUsed, cfg.Params.EvmDenom); err != nil {
return nil, sdkerrors.Wrapf(err, "failed to refund gas leftover gas to sender %s", msg.From())
}
if len(logs) > 0 {
res.Logs = types.NewLogsFromEth(logs)
// Update transient block bloom filter
k.SetBlockBloomTransient(bloom)
k.SetBlockBloomTransient(ctx, bloom)
k.SetLogSizeTransient(ctx, uint64(txConfig.LogIndex)+uint64(len(logs)))
}
k.IncreaseTxIndexTransient()
k.SetTxIndexTransient(ctx, uint64(txConfig.TxIndex)+1)
// update the gas used after refund
k.ResetGasMeterAndConsumeGas(res.GasUsed)
k.ResetGasMeterAndConsumeGas(ctx, res.GasUsed)
return res, nil
}
@ -292,8 +298,7 @@ func (k *Keeper) ApplyTransaction(tx *ethtypes.Transaction) (*types.MsgEthereumT
//
// Reverted state
//
// The snapshot and rollback are supported by the `ContextStack`, which should be only used inside `ApplyMessage`,
// because some operations has exponential computational complexity with deep stack.
// The snapshot and rollback are supported by the `statedb.StateDB`.
//
// Different Callers
//
@ -324,22 +329,13 @@ func (k *Keeper) ApplyTransaction(tx *ethtypes.Transaction) (*types.MsgEthereumT
//
// Commit parameter
//
// If commit is true, the cache context stack will be committed, otherwise discarded.
func (k *Keeper) ApplyMessageWithConfig(msg core.Message, tracer vm.Tracer, commit bool, cfg *types.EVMConfig) (*types.MsgEthereumTxResponse, error) {
// If commit is true, the `StateDB` will be committed, otherwise discarded.
func (k *Keeper) ApplyMessageWithConfig(ctx sdk.Context, msg core.Message, tracer vm.Tracer, commit bool, cfg *types.EVMConfig, txConfig statedb.TxConfig) (*types.MsgEthereumTxResponse, error) {
var (
ret []byte // return bytes from evm execution
vmErr error // vm errors do not effect consensus and are therefore not assigned to err
)
if !k.ctxStack.IsEmpty() {
panic("context stack shouldn't be dirty before apply message")
}
evm := k.NewEVM(msg, cfg, tracer)
// ensure keeper state error is cleared
defer k.ClearStateError()
// return error if contract creation or call are disabled through governance
if !cfg.Params.EnableCreate && msg.To() == nil {
return nil, sdkerrors.Wrap(types.ErrCreateDisabled, "failed to create new contract")
@ -347,11 +343,14 @@ func (k *Keeper) ApplyMessageWithConfig(msg core.Message, tracer vm.Tracer, comm
return nil, sdkerrors.Wrap(types.ErrCallDisabled, "failed to call contract")
}
stateDB := statedb.New(ctx, k, txConfig)
evm := k.NewEVM(ctx, msg, cfg, tracer, stateDB)
sender := vm.AccountRef(msg.From())
contractCreation := msg.To() == nil
isLondon := cfg.ChainConfig.IsLondon(evm.Context.BlockNumber)
intrinsicGas, err := k.GetEthIntrinsicGas(msg, cfg.ChainConfig, contractCreation)
intrinsicGas, err := k.GetEthIntrinsicGas(ctx, msg, cfg.ChainConfig, contractCreation)
if err != nil {
// should have already been checked on Ante Handler
return nil, sdkerrors.Wrap(err, "intrinsic gas failed")
@ -363,21 +362,19 @@ func (k *Keeper) ApplyMessageWithConfig(msg core.Message, tracer vm.Tracer, comm
}
leftoverGas := msg.Gas() - intrinsicGas
// Clear access list before executing the contract
k.ClearAccessList()
// access list preparaion is moved from ante handler to here, because it's needed when `ApplyMessage` is called
// under contexts where ante handlers are not run, for example `eth_call` and `eth_estimateGas`.
if rules := cfg.ChainConfig.Rules(big.NewInt(k.Ctx().BlockHeight())); rules.IsBerlin {
k.PrepareAccessList(msg.From(), msg.To(), vm.ActivePrecompiles(rules), msg.AccessList())
if rules := cfg.ChainConfig.Rules(big.NewInt(ctx.BlockHeight())); rules.IsBerlin {
stateDB.PrepareAccessList(msg.From(), msg.To(), vm.ActivePrecompiles(rules), msg.AccessList())
}
if contractCreation {
// take over the nonce management from evm:
// - reset sender's nonce to msg.Nonce() before calling evm.
// - increase sender's nonce by one no matter the result.
k.SetNonce(sender.Address(), msg.Nonce())
stateDB.SetNonce(sender.Address(), msg.Nonce())
ret, _, leftoverGas, vmErr = evm.Create(sender, msg.Data(), leftoverGas, msg.Value())
k.SetNonce(sender.Address(), msg.Nonce()+1)
stateDB.SetNonce(sender.Address(), msg.Nonce()+1)
} else {
ret, leftoverGas, vmErr = evm.Call(sender, *msg.To(), msg.Data(), leftoverGas, msg.Value())
}
@ -394,7 +391,7 @@ func (k *Keeper) ApplyMessageWithConfig(msg core.Message, tracer vm.Tracer, comm
return nil, sdkerrors.Wrap(types.ErrGasOverflow, "apply message")
}
gasUsed := msg.Gas() - leftoverGas
refund := k.GasToRefund(gasUsed, refundQuotient)
refund := GasToRefund(stateDB.GetRefund(), gasUsed, refundQuotient)
if refund > gasUsed {
return nil, sdkerrors.Wrap(types.ErrGasOverflow, "apply message")
}
@ -406,57 +403,46 @@ func (k *Keeper) ApplyMessageWithConfig(msg core.Message, tracer vm.Tracer, comm
vmError = vmErr.Error()
}
// The context stack is designed specifically for `StateDB` interface, it should only be used in `ApplyMessage`,
// after return, the stack should be clean, the cached states are either committed or discarded.
// The dirty states in `StateDB` is either committed or discarded after return
if commit {
k.CommitCachedContexts()
} else {
k.ctxStack.RevertAll()
if err := stateDB.Commit(); err != nil {
return nil, sdkerrors.Wrap(err, "failed to commit stateDB")
}
}
return &types.MsgEthereumTxResponse{
GasUsed: gasUsed,
VmError: vmError,
Ret: ret,
Logs: types.NewLogsFromEth(stateDB.Logs()),
Hash: txConfig.TxHash.Hex(),
}, nil
}
// ApplyMessage calls ApplyMessageWithConfig with default EVMConfig
func (k *Keeper) ApplyMessage(msg core.Message, tracer vm.Tracer, commit bool) (*types.MsgEthereumTxResponse, error) {
cfg, err := k.EVMConfig(k.Ctx())
func (k *Keeper) ApplyMessage(ctx sdk.Context, msg core.Message, tracer vm.Tracer, commit bool) (*types.MsgEthereumTxResponse, error) {
cfg, err := k.EVMConfig(ctx)
if err != nil {
return nil, sdkerrors.Wrap(err, "failed to load evm config")
}
return k.ApplyMessageWithConfig(msg, tracer, commit, cfg)
txConfig := statedb.NewEmptyTxConfig(common.BytesToHash(ctx.HeaderHash()))
return k.ApplyMessageWithConfig(ctx, msg, tracer, commit, cfg, txConfig)
}
// GetEthIntrinsicGas returns the intrinsic gas cost for the transaction
func (k *Keeper) GetEthIntrinsicGas(msg core.Message, cfg *params.ChainConfig, isContractCreation bool) (uint64, error) {
height := big.NewInt(k.Ctx().BlockHeight())
func (k *Keeper) GetEthIntrinsicGas(ctx sdk.Context, msg core.Message, cfg *params.ChainConfig, isContractCreation bool) (uint64, error) {
height := big.NewInt(ctx.BlockHeight())
homestead := cfg.IsHomestead(height)
istanbul := cfg.IsIstanbul(height)
return core.IntrinsicGas(msg.Data(), msg.AccessList(), isContractCreation, homestead, istanbul)
}
// GasToRefund calculates the amount of gas the state machine should refund to the sender. It is
// capped by the refund quotient value.
// Note: do not pass 0 to refundQuotient
func (k *Keeper) GasToRefund(gasConsumed, refundQuotient uint64) uint64 {
// Apply refund counter
refund := gasConsumed / refundQuotient
availableRefund := k.GetRefund()
if refund > availableRefund {
return availableRefund
}
return refund
}
// 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 consumed during in the
// AnteHandler.
func (k *Keeper) RefundGas(msg core.Message, leftoverGas uint64, denom string) error {
func (k *Keeper) RefundGas(ctx sdk.Context, msg core.Message, leftoverGas uint64, denom string) error {
// Return EVM tokens for remaining gas, exchanged at the original rate.
remaining := new(big.Int).Mul(new(big.Int).SetUint64(leftoverGas), msg.GasPrice())
@ -470,7 +456,7 @@ func (k *Keeper) RefundGas(msg core.Message, leftoverGas uint64, denom string) e
// refund to sender from the fee collector module account, which is the escrow account in charge of collecting tx fees
err := k.bankKeeper.SendCoinsFromModuleToAccount(k.Ctx(), authtypes.FeeCollectorName, msg.From().Bytes(), refundedCoins)
err := k.bankKeeper.SendCoinsFromModuleToAccount(ctx, authtypes.FeeCollectorName, msg.From().Bytes(), refundedCoins)
if err != nil {
err = sdkerrors.Wrapf(sdkerrors.ErrInsufficientFunds, "fee collector account failed to refund fees: %s", err.Error())
return sdkerrors.Wrapf(err, "failed to refund %d leftover gas (%s)", leftoverGas, refundedCoins.String())
@ -484,9 +470,8 @@ func (k *Keeper) RefundGas(msg core.Message, leftoverGas uint64, denom string) e
// ResetGasMeterAndConsumeGas reset first the gas meter consumed value to zero and set it back to the new value
// 'gasUsed'
func (k *Keeper) ResetGasMeterAndConsumeGas(gasUsed uint64) {
func (k *Keeper) ResetGasMeterAndConsumeGas(ctx sdk.Context, gasUsed uint64) {
// reset the gas count
ctx := k.Ctx()
ctx.GasMeter().RefundGas(ctx.GasMeter().GasConsumed(), "reset the gas count")
ctx.GasMeter().ConsumeGas(gasUsed, "apply evm transaction")
}

24
x/evm/keeper/state_transition_benchmark_test.go
View File

@ -152,7 +152,7 @@ func BenchmarkApplyTransaction(b *testing.B) {
for i := 0; i < b.N; i++ {
b.StopTimer()
tx, err := newSignedEthTx(templateAccessListTx,
suite.app.EvmKeeper.GetNonce(suite.address),
suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address),
sdk.AccAddress(suite.address.Bytes()),
suite.signer,
ethSigner,
@ -160,7 +160,7 @@ func BenchmarkApplyTransaction(b *testing.B) {
require.NoError(b, err)
b.StartTimer()
resp, err := suite.app.EvmKeeper.ApplyTransaction(tx)
resp, err := suite.app.EvmKeeper.ApplyTransaction(suite.ctx, tx)
b.StopTimer()
require.NoError(b, err)
@ -179,7 +179,7 @@ func BenchmarkApplyTransactionWithLegacyTx(b *testing.B) {
for i := 0; i < b.N; i++ {
b.StopTimer()
tx, err := newSignedEthTx(templateLegacyTx,
suite.app.EvmKeeper.GetNonce(suite.address),
suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address),
sdk.AccAddress(suite.address.Bytes()),
suite.signer,
ethSigner,
@ -187,7 +187,7 @@ func BenchmarkApplyTransactionWithLegacyTx(b *testing.B) {
require.NoError(b, err)
b.StartTimer()
resp, err := suite.app.EvmKeeper.ApplyTransaction(tx)
resp, err := suite.app.EvmKeeper.ApplyTransaction(suite.ctx, tx)
b.StopTimer()
require.NoError(b, err)
@ -206,7 +206,7 @@ func BenchmarkApplyTransactionWithDynamicFeeTx(b *testing.B) {
for i := 0; i < b.N; i++ {
b.StopTimer()
tx, err := newSignedEthTx(templateDynamicFeeTx,
suite.app.EvmKeeper.GetNonce(suite.address),
suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address),
sdk.AccAddress(suite.address.Bytes()),
suite.signer,
ethSigner,
@ -214,7 +214,7 @@ func BenchmarkApplyTransactionWithDynamicFeeTx(b *testing.B) {
require.NoError(b, err)
b.StartTimer()
resp, err := suite.app.EvmKeeper.ApplyTransaction(tx)
resp, err := suite.app.EvmKeeper.ApplyTransaction(suite.ctx, tx)
b.StopTimer()
require.NoError(b, err)
@ -236,7 +236,7 @@ func BenchmarkApplyMessage(b *testing.B) {
b.StopTimer()
m, err := newNativeMessage(
suite.app.EvmKeeper.GetNonce(suite.address),
suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address),
suite.ctx.BlockHeight(),
suite.address,
ethCfg,
@ -249,7 +249,7 @@ func BenchmarkApplyMessage(b *testing.B) {
require.NoError(b, err)
b.StartTimer()
resp, err := suite.app.EvmKeeper.ApplyMessage(m, nil, true)
resp, err := suite.app.EvmKeeper.ApplyMessage(suite.ctx, m, nil, true)
b.StopTimer()
require.NoError(b, err)
@ -271,7 +271,7 @@ func BenchmarkApplyMessageWithLegacyTx(b *testing.B) {
b.StopTimer()
m, err := newNativeMessage(
suite.app.EvmKeeper.GetNonce(suite.address),
suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address),
suite.ctx.BlockHeight(),
suite.address,
ethCfg,
@ -284,7 +284,7 @@ func BenchmarkApplyMessageWithLegacyTx(b *testing.B) {
require.NoError(b, err)
b.StartTimer()
resp, err := suite.app.EvmKeeper.ApplyMessage(m, nil, true)
resp, err := suite.app.EvmKeeper.ApplyMessage(suite.ctx, m, nil, true)
b.StopTimer()
require.NoError(b, err)
@ -306,7 +306,7 @@ func BenchmarkApplyMessageWithDynamicFeeTx(b *testing.B) {
b.StopTimer()
m, err := newNativeMessage(
suite.app.EvmKeeper.GetNonce(suite.address),
suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address),
suite.ctx.BlockHeight(),
suite.address,
ethCfg,
@ -319,7 +319,7 @@ func BenchmarkApplyMessageWithDynamicFeeTx(b *testing.B) {
require.NoError(b, err)
b.StartTimer()
resp, err := suite.app.EvmKeeper.ApplyMessage(m, nil, true)
resp, err := suite.app.EvmKeeper.ApplyMessage(suite.ctx, m, nil, true)
b.StopTimer()
require.NoError(b, err)

42
x/evm/keeper/state_transition_test.go
View File

@ -15,6 +15,7 @@ import (
tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
tmtypes "github.com/tendermint/tendermint/types"
"github.com/tharsis/ethermint/tests"
"github.com/tharsis/ethermint/x/evm/keeper"
"github.com/tharsis/ethermint/x/evm/types"
)
@ -34,7 +35,6 @@ func (suite *KeeperTestSuite) TestGetHashFn() {
uint64(suite.ctx.BlockHeight()),
func() {
suite.ctx = suite.ctx.WithHeaderHash(tmhash.Sum([]byte("header")))
suite.app.EvmKeeper.WithContext(suite.ctx)
},
common.BytesToHash(tmhash.Sum([]byte("header"))),
},
@ -45,7 +45,6 @@ func (suite *KeeperTestSuite) TestGetHashFn() {
header := tmproto.Header{}
header.Height = suite.ctx.BlockHeight()
suite.ctx = suite.ctx.WithBlockHeader(header)
suite.app.EvmKeeper.WithContext(suite.ctx)
},
common.Hash{},
},
@ -54,7 +53,6 @@ func (suite *KeeperTestSuite) TestGetHashFn() {
uint64(suite.ctx.BlockHeight()),
func() {
suite.ctx = suite.ctx.WithBlockHeader(header)
suite.app.EvmKeeper.WithContext(suite.ctx)
},
common.BytesToHash(hash),
},
@ -63,7 +61,6 @@ func (suite *KeeperTestSuite) TestGetHashFn() {
1,
func() {
suite.ctx = suite.ctx.WithBlockHeight(10)
suite.app.EvmKeeper.WithContext(suite.ctx)
},
common.Hash{},
},
@ -73,7 +70,6 @@ func (suite *KeeperTestSuite) TestGetHashFn() {
func() {
suite.app.StakingKeeper.SetHistoricalInfo(suite.ctx, 1, &stakingtypes.HistoricalInfo{})
suite.ctx = suite.ctx.WithBlockHeight(10)
suite.app.EvmKeeper.WithContext(suite.ctx)
},
common.Hash{},
},
@ -86,7 +82,6 @@ func (suite *KeeperTestSuite) TestGetHashFn() {
}
suite.app.StakingKeeper.SetHistoricalInfo(suite.ctx, 1, histInfo)
suite.ctx = suite.ctx.WithBlockHeight(10)
suite.app.EvmKeeper.WithContext(suite.ctx)
},
common.BytesToHash(hash),
},
@ -104,7 +99,7 @@ func (suite *KeeperTestSuite) TestGetHashFn() {
tc.malleate()
hash := suite.app.EvmKeeper.GetHashFn()(tc.height)
hash := suite.app.EvmKeeper.GetHashFn(suite.ctx)(tc.height)
suite.Require().Equal(tc.expHash, hash)
})
}
@ -124,7 +119,6 @@ func (suite *KeeperTestSuite) TestGetCoinbaseAddress() {
header := suite.ctx.BlockHeader()
header.ProposerAddress = []byte{}
suite.ctx = suite.ctx.WithBlockHeader(header)
suite.app.EvmKeeper.WithContext(suite.ctx)
},
false,
},
@ -152,7 +146,6 @@ func (suite *KeeperTestSuite) TestGetCoinbaseAddress() {
_, found := suite.app.StakingKeeper.GetValidatorByConsAddr(suite.ctx, valConsAddr.Bytes())
suite.Require().True(found)
suite.app.EvmKeeper.WithContext(suite.ctx)
suite.Require().NotEmpty(suite.ctx.BlockHeader().ProposerAddress)
},
true,
@ -276,10 +269,10 @@ func (suite *KeeperTestSuite) TestGetEthIntrinsicGas() {
signer := ethtypes.LatestSignerForChainID(suite.app.EvmKeeper.ChainID())
suite.ctx = suite.ctx.WithBlockHeight(tc.height)
suite.app.EvmKeeper.WithContext(suite.ctx)
nonce := suite.app.EvmKeeper.GetNonce(suite.ctx, suite.address)
m, err := newNativeMessage(
suite.app.EvmKeeper.GetNonce(suite.address),
nonce,
suite.ctx.BlockHeight(),
suite.address,
ethCfg,
@ -291,7 +284,7 @@ func (suite *KeeperTestSuite) TestGetEthIntrinsicGas() {
)
suite.Require().NoError(err)
gas, err := suite.app.EvmKeeper.GetEthIntrinsicGas(m, ethCfg, tc.isContractCreation)
gas, err := suite.app.EvmKeeper.GetEthIntrinsicGas(suite.ctx, m, ethCfg, tc.isContractCreation)
if tc.noError {
suite.Require().NoError(err)
} else {
@ -345,15 +338,16 @@ func (suite *KeeperTestSuite) TestGasToRefund() {
suite.Run(fmt.Sprintf("Case %s", tc.name), func() {
suite.mintFeeCollector = true
suite.SetupTest() // reset
suite.app.EvmKeeper.AddRefund(10)
vmdb := suite.StateDB()
vmdb.AddRefund(10)
if tc.expPanic {
panicF := func() {
suite.app.EvmKeeper.GasToRefund(tc.gasconsumed, tc.refundQuotient)
keeper.GasToRefund(vmdb.GetRefund(), tc.gasconsumed, tc.refundQuotient)
}
suite.Require().Panics(panicF)
} else {
gr := suite.app.EvmKeeper.GasToRefund(tc.gasconsumed, tc.refundQuotient)
gr := keeper.GasToRefund(vmdb.GetRefund(), tc.gasconsumed, tc.refundQuotient)
suite.Require().Equal(tc.expGasRefund, gr)
}
})
@ -407,9 +401,10 @@ func (suite *KeeperTestSuite) TestRefundGas() {
keeperParams := suite.app.EvmKeeper.GetParams(suite.ctx)
ethCfg := keeperParams.ChainConfig.EthereumConfig(suite.app.EvmKeeper.ChainID())
signer := ethtypes.LatestSignerForChainID(suite.app.EvmKeeper.ChainID())
vmdb := suite.StateDB()
m, err := newNativeMessage(
suite.app.EvmKeeper.GetNonce(suite.address),
vmdb.GetNonce(suite.address),
suite.ctx.BlockHeight(),
suite.address,
ethCfg,
@ -421,16 +416,16 @@ func (suite *KeeperTestSuite) TestRefundGas() {
)
suite.Require().NoError(err)
suite.app.EvmKeeper.AddRefund(params.TxGas)
vmdb.AddRefund(params.TxGas)
if tc.leftoverGas > m.Gas() {
return
}
gasUsed := m.Gas() - tc.leftoverGas
refund := suite.app.EvmKeeper.GasToRefund(gasUsed, tc.refundQuotient)
refund := keeper.GasToRefund(vmdb.GetRefund(), gasUsed, tc.refundQuotient)
suite.Require().Equal(tc.expGasRefund, refund)
err = suite.app.EvmKeeper.RefundGas(m, refund, "aphoton")
err = suite.app.EvmKeeper.RefundGas(suite.ctx, m, refund, "aphoton")
if tc.noError {
suite.Require().NoError(err)
} else {
@ -487,10 +482,8 @@ func (suite *KeeperTestSuite) TestResetGasMeterAndConsumeGas() {
panicF := func() {
gm := sdk.NewGasMeter(10)
gm.ConsumeGas(tc.gasConsumed, "")
suite.ctx = suite.ctx.WithGasMeter(gm)
suite.app.EvmKeeper.WithContext(suite.ctx)
suite.app.EvmKeeper.ResetGasMeterAndConsumeGas(tc.gasUsed)
ctx := suite.ctx.WithGasMeter(gm)
suite.app.EvmKeeper.ResetGasMeterAndConsumeGas(ctx, tc.gasUsed)
}
if tc.expPanic {
@ -516,5 +509,6 @@ func (suite *KeeperTestSuite) TestEVMConfig() {
func (suite *KeeperTestSuite) TestContractDeployment() {
suite.SetupTest()
contractAddress := suite.DeployTestContract(suite.T(), suite.address, big.NewInt(10000000000000))
suite.Require().Greater(suite.app.EvmKeeper.GetCodeSize(contractAddress), 0)
db := suite.StateDB()
suite.Require().Greater(db.GetCodeSize(contractAddress), 0)
}

952
x/evm/keeper/statedb.go
View File

File diff suppressed because it is too large Load Diff

37
x/evm/keeper/statedb_benchmark_test.go
View File

@ -16,6 +16,7 @@ import (
func BenchmarkCreateAccountNew(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
b.ResetTimer()
b.ReportAllocs()
@ -24,25 +25,27 @@ func BenchmarkCreateAccountNew(b *testing.B) {
b.StopTimer()
addr := tests.GenerateAddress()
b.StartTimer()
suite.app.EvmKeeper.CreateAccount(addr)
vmdb.CreateAccount(addr)
}
}
func BenchmarkCreateAccountExisting(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.CreateAccount(suite.address)
vmdb.CreateAccount(suite.address)
}
}
func BenchmarkAddBalance(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
amt := big.NewInt(10)
@ -50,13 +53,14 @@ func BenchmarkAddBalance(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.AddBalance(suite.address, amt)
vmdb.AddBalance(suite.address, amt)
}
}
func BenchmarkSetCode(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
hash := crypto.Keccak256Hash([]byte("code")).Bytes()
@ -64,13 +68,14 @@ func BenchmarkSetCode(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.SetCode(suite.address, hash)
vmdb.SetCode(suite.address, hash)
}
}
func BenchmarkSetState(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
hash := crypto.Keccak256Hash([]byte("topic")).Bytes()
@ -78,13 +83,14 @@ func BenchmarkSetState(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.SetCode(suite.address, hash)
vmdb.SetCode(suite.address, hash)
}
}
func BenchmarkAddLog(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
topic := crypto.Keccak256Hash([]byte("topic"))
txHash := crypto.Keccak256Hash([]byte("tx_hash"))
@ -94,7 +100,7 @@ func BenchmarkAddLog(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.AddLog(&ethtypes.Log{
vmdb.AddLog(&ethtypes.Log{
Address: suite.address,
Topics: []common.Hash{topic},
Data: []byte("data"),
@ -111,18 +117,19 @@ func BenchmarkAddLog(b *testing.B) {
func BenchmarkSnapshot(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
target := suite.app.EvmKeeper.Snapshot()
target := vmdb.Snapshot()
require.Equal(b, i, target)
}
for i := b.N - 1; i >= 0; i-- {
require.NotPanics(b, func() {
suite.app.EvmKeeper.RevertToSnapshot(i)
vmdb.RevertToSnapshot(i)
})
}
}
@ -130,6 +137,7 @@ func BenchmarkSnapshot(b *testing.B) {
func BenchmarkSubBalance(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
amt := big.NewInt(10)
@ -137,46 +145,49 @@ func BenchmarkSubBalance(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.SubBalance(suite.address, amt)
vmdb.SubBalance(suite.address, amt)
}
}
func BenchmarkSetNonce(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.SetNonce(suite.address, 1)
vmdb.SetNonce(suite.address, 1)
}
}
func BenchmarkAddRefund(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
suite.app.EvmKeeper.AddRefund(1)
vmdb.AddRefund(1)
}
}
func BenchmarkSuicide(b *testing.B) {
suite := KeeperTestSuite{}
suite.DoSetupTest(b)
vmdb := suite.StateDB()
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
b.StopTimer()
addr := tests.GenerateAddress()
suite.app.EvmKeeper.CreateAccount(addr)
vmdb.CreateAccount(addr)
b.StartTimer()
suite.app.EvmKeeper.Suicide(addr)
vmdb.Suicide(addr)
}
}

394
x/evm/keeper/statedb_test.go
View File

@ -13,8 +13,10 @@ import (
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/tharsis/ethermint/tests"
"github.com/tharsis/ethermint/x/evm/statedb"
"github.com/tharsis/ethermint/x/evm/types"
)
@ -22,39 +24,38 @@ func (suite *KeeperTestSuite) TestCreateAccount() {
testCases := []struct {
name string
addr common.Address
malleate func(common.Address)
callback func(common.Address)
malleate func(vm.StateDB, common.Address)
callback func(vm.StateDB, common.Address)
}{
{
"reset account (keep balance)",
suite.address,
func(addr common.Address) {
suite.app.EvmKeeper.AddBalance(addr, big.NewInt(100))
suite.Require().NotZero(suite.app.EvmKeeper.GetBalance(addr).Int64())
func(vmdb vm.StateDB, addr common.Address) {
vmdb.AddBalance(addr, big.NewInt(100))
suite.Require().NotZero(vmdb.GetBalance(addr).Int64())
},
func(addr common.Address) {
suite.Require().Equal(suite.app.EvmKeeper.GetBalance(addr).Int64(), int64(100))
func(vmdb vm.StateDB, addr common.Address) {
suite.Require().Equal(vmdb.GetBalance(addr).Int64(), int64(100))
},
},
{
"create account",
tests.GenerateAddress(),
func(addr common.Address) {
acc := suite.app.AccountKeeper.GetAccount(suite.ctx, addr.Bytes())
suite.Require().Nil(acc)
func(vmdb vm.StateDB, addr common.Address) {
suite.Require().False(vmdb.Exist(addr))
},
func(addr common.Address) {
acc := suite.app.AccountKeeper.GetAccount(suite.ctx, addr.Bytes())
suite.Require().NotNil(acc)
func(vmdb vm.StateDB, addr common.Address) {
suite.Require().True(vmdb.Exist(addr))
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate(tc.addr)
suite.app.EvmKeeper.CreateAccount(tc.addr)
tc.callback(tc.addr)
vmdb := suite.StateDB()
tc.malleate(vmdb, tc.addr)
vmdb.CreateAccount(tc.addr)
tc.callback(vmdb, tc.addr)
})
}
}
@ -78,15 +79,16 @@ func (suite *KeeperTestSuite) TestAddBalance() {
{
"negative amount",
big.NewInt(-1),
true,
false, // seems to be consistent with go-ethereum's implementation
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
prev := suite.app.EvmKeeper.GetBalance(suite.address)
suite.app.EvmKeeper.AddBalance(suite.address, tc.amount)
post := suite.app.EvmKeeper.GetBalance(suite.address)
vmdb := suite.StateDB()
prev := vmdb.GetBalance(suite.address)
vmdb.AddBalance(suite.address, tc.amount)
post := vmdb.GetBalance(suite.address)
if tc.isNoOp {
suite.Require().Equal(prev.Int64(), post.Int64())
@ -101,44 +103,45 @@ func (suite *KeeperTestSuite) TestSubBalance() {
testCases := []struct {
name string
amount *big.Int
malleate func()
malleate func(vm.StateDB)
isNoOp bool
}{
{
"positive amount, below zero",
big.NewInt(100),
func() {},
true,
func(vm.StateDB) {},
false,
},
{
"positive amount, below zero",
"positive amount, above zero",
big.NewInt(50),
func() {
suite.app.EvmKeeper.AddBalance(suite.address, big.NewInt(100))
func(vmdb vm.StateDB) {
vmdb.AddBalance(suite.address, big.NewInt(100))
},
false,
},
{
"zero amount",
big.NewInt(0),
func() {},
func(vm.StateDB) {},
true,
},
{
"negative amount",
big.NewInt(-1),
func() {},
true,
func(vm.StateDB) {},
false,
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
prev := suite.app.EvmKeeper.GetBalance(suite.address)
suite.app.EvmKeeper.SubBalance(suite.address, tc.amount)
post := suite.app.EvmKeeper.GetBalance(suite.address)
prev := vmdb.GetBalance(suite.address)
vmdb.SubBalance(suite.address, tc.amount)
post := vmdb.GetBalance(suite.address)
if tc.isNoOp {
suite.Require().Equal(prev.Int64(), post.Int64())
@ -154,29 +157,30 @@ func (suite *KeeperTestSuite) TestGetNonce() {
name string
address common.Address
expectedNonce uint64
malleate func()
malleate func(vm.StateDB)
}{
{
"account not found",
tests.GenerateAddress(),
0,
func() {},
func(vm.StateDB) {},
},
{
"existing account",
suite.address,
1,
func() {
suite.app.EvmKeeper.SetNonce(suite.address, 1)
func(vmdb vm.StateDB) {
vmdb.SetNonce(suite.address, 1)
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
nonce := suite.app.EvmKeeper.GetNonce(tc.address)
nonce := vmdb.GetNonce(tc.address)
suite.Require().Equal(tc.expectedNonce, nonce)
})
}
@ -205,8 +209,9 @@ func (suite *KeeperTestSuite) TestSetNonce() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.SetNonce(tc.address, tc.nonce)
nonce := suite.app.EvmKeeper.GetNonce(tc.address)
vmdb := suite.StateDB()
vmdb.SetNonce(tc.address, tc.nonce)
nonce := vmdb.GetNonce(tc.address)
suite.Require().Equal(tc.nonce, nonce)
})
}
@ -221,35 +226,36 @@ func (suite *KeeperTestSuite) TestGetCodeHash() {
name string
address common.Address
expHash common.Hash
malleate func()
malleate func(vm.StateDB)
}{
{
"account not found",
tests.GenerateAddress(),
common.BytesToHash(types.EmptyCodeHash),
func() {},
common.Hash{},
func(vm.StateDB) {},
},
{
"account not EthAccount type",
"account not EthAccount type, error",
addr,
common.BytesToHash(types.EmptyCodeHash),
func() {},
common.Hash{},
func(vm.StateDB) {},
},
{
"existing account",
suite.address,
crypto.Keccak256Hash([]byte("codeHash")),
func() {
suite.app.EvmKeeper.SetCode(suite.address, []byte("codeHash"))
func(vmdb vm.StateDB) {
vmdb.SetCode(suite.address, []byte("codeHash"))
},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
hash := suite.app.EvmKeeper.GetCodeHash(tc.address)
hash := vmdb.GetCodeHash(tc.address)
suite.Require().Equal(tc.expHash, hash)
})
}
@ -294,9 +300,10 @@ func (suite *KeeperTestSuite) TestSetCode() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
prev := suite.app.EvmKeeper.GetCode(tc.address)
suite.app.EvmKeeper.SetCode(tc.address, tc.code)
post := suite.app.EvmKeeper.GetCode(tc.address)
vmdb := suite.StateDB()
prev := vmdb.GetCode(tc.address)
vmdb.SetCode(tc.address, tc.code)
post := vmdb.GetCode(tc.address)
if tc.isNoOp {
suite.Require().Equal(prev, post)
@ -304,9 +311,7 @@ func (suite *KeeperTestSuite) TestSetCode() {
suite.Require().Equal(tc.code, post)
}
suite.Require().Equal(len(post), suite.app.EvmKeeper.GetCodeSize(tc.address))
suite.app.EvmKeeper.ClearStateError()
suite.Require().Equal(len(post), vmdb.GetCodeSize(tc.address))
})
}
}
@ -314,21 +319,21 @@ func (suite *KeeperTestSuite) TestSetCode() {
func (suite *KeeperTestSuite) TestRefund() {
testCases := []struct {
name string
malleate func()
malleate func(vm.StateDB)
expRefund uint64
expPanic bool
}{
{
"success - add and subtract refund",
func() {
suite.app.EvmKeeper.AddRefund(11)
func(vmdb vm.StateDB) {
vmdb.AddRefund(11)
},
1,
false,
},
{
"fail - subtract amount > current refund",
func() {
func(vm.StateDB) {
},
0,
true,
@ -337,18 +342,15 @@ func (suite *KeeperTestSuite) TestRefund() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
if tc.expPanic {
suite.Require().Panics(func() { suite.app.EvmKeeper.SubRefund(10) })
suite.Require().Panics(func() { vmdb.SubRefund(10) })
} else {
suite.app.EvmKeeper.SubRefund(10)
suite.Require().Equal(tc.expRefund, suite.app.EvmKeeper.GetRefund())
vmdb.SubRefund(10)
suite.Require().Equal(tc.expRefund, vmdb.GetRefund())
}
// clear and reset refund from store
suite.app.EvmKeeper.ResetRefundTransient(suite.ctx)
suite.Require().Zero(suite.app.EvmKeeper.GetRefund())
})
}
}
@ -372,8 +374,9 @@ func (suite *KeeperTestSuite) TestState() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.SetState(suite.address, tc.key, tc.value)
value := suite.app.EvmKeeper.GetState(suite.address, tc.key)
vmdb := suite.StateDB()
vmdb.SetState(suite.address, tc.key, tc.value)
value := vmdb.GetState(suite.address, tc.key)
suite.Require().Equal(tc.value, value)
})
}
@ -386,99 +389,120 @@ func (suite *KeeperTestSuite) TestCommittedState() {
value1 := common.BytesToHash([]byte("value1"))
value2 := common.BytesToHash([]byte("value2"))
suite.app.EvmKeeper.SetState(suite.address, key, value1)
vmdb := suite.StateDB()
vmdb.SetState(suite.address, key, value1)
vmdb.Commit()
suite.app.EvmKeeper.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value2)
tmp := suite.app.EvmKeeper.GetState(suite.address, key)
vmdb = suite.StateDB()
vmdb.SetState(suite.address, key, value2)
tmp := vmdb.GetState(suite.address, key)
suite.Require().Equal(value2, tmp)
tmp = suite.app.EvmKeeper.GetCommittedState(suite.address, key)
tmp = vmdb.GetCommittedState(suite.address, key)
suite.Require().Equal(value1, tmp)
vmdb.Commit()
suite.app.EvmKeeper.CommitCachedContexts()
tmp = suite.app.EvmKeeper.GetCommittedState(suite.address, key)
vmdb = suite.StateDB()
tmp = vmdb.GetCommittedState(suite.address, key)
suite.Require().Equal(value2, tmp)
}
func (suite *KeeperTestSuite) TestSuicide() {
code := []byte("code")
db := suite.StateDB()
// Add code to account
suite.app.EvmKeeper.SetCode(suite.address, code)
suite.Require().Equal(code, suite.app.EvmKeeper.GetCode(suite.address))
db.SetCode(suite.address, code)
suite.Require().Equal(code, db.GetCode(suite.address))
// Add state to account
for i := 0; i < 5; i++ {
suite.app.EvmKeeper.SetState(suite.address, common.BytesToHash([]byte(fmt.Sprintf("key%d", i))), common.BytesToHash([]byte(fmt.Sprintf("value%d", i))))
db.SetState(suite.address, common.BytesToHash([]byte(fmt.Sprintf("key%d", i))), common.BytesToHash([]byte(fmt.Sprintf("value%d", i))))
}
suite.Require().NoError(db.Commit())
db = suite.StateDB()
// Call Suicide
suite.Require().Equal(true, suite.app.EvmKeeper.Suicide(suite.address))
suite.Require().Equal(true, db.Suicide(suite.address))
// Check suicided is marked
suite.Require().Equal(true, suite.app.EvmKeeper.HasSuicided(suite.address))
suite.Require().Equal(true, db.HasSuicided(suite.address))
suite.Require().NoError(db.Commit())
db = suite.StateDB()
// Check code is deleted
suite.Require().Nil(suite.app.EvmKeeper.GetCode(suite.address))
suite.Require().Nil(db.GetCode(suite.address))
// Check state is deleted
var storage types.Storage
err := suite.app.EvmKeeper.ForEachStorage(suite.address, func(key, value common.Hash) bool {
suite.app.EvmKeeper.ForEachStorage(suite.ctx, suite.address, func(key, value common.Hash) bool {
storage = append(storage, types.NewState(key, value))
return true
})
suite.Require().NoError(err)
suite.Require().Equal(0, len(storage))
// Check CodeHash is emptied
suite.Require().Equal(common.BytesToHash(types.EmptyCodeHash).Bytes(), suite.app.EvmKeeper.GetCodeHash(suite.address).Bytes())
// Check account is deleted
suite.Require().Equal(common.Hash{}, db.GetCodeHash(suite.address))
}
func (suite *KeeperTestSuite) TestExist() {
testCases := []struct {
name string
address common.Address
malleate func()
malleate func(vm.StateDB)
exists bool
}{
{"success, account exists", suite.address, func() {}, true},
{"success, has suicided", suite.address, func() {
suite.app.EvmKeeper.Suicide(suite.address)
{"success, account exists", suite.address, func(vm.StateDB) {}, true},
{"success, has suicided", suite.address, func(vmdb vm.StateDB) {
vmdb.Suicide(suite.address)
}, true},
{"success, account doesn't exist", tests.GenerateAddress(), func() {}, false},
{"success, account doesn't exist", tests.GenerateAddress(), func(vm.StateDB) {}, false},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
suite.Require().Equal(tc.exists, suite.app.EvmKeeper.Exist(tc.address))
suite.Require().Equal(tc.exists, vmdb.Exist(tc.address))
})
}
}
func (suite *KeeperTestSuite) TestEmpty() {
suite.SetupTest()
addr := tests.GenerateAddress()
baseAcc := &authtypes.BaseAccount{Address: sdk.AccAddress(addr.Bytes()).String()}
suite.app.AccountKeeper.SetAccount(suite.ctx, baseAcc)
acct, err := suite.app.EvmKeeper.GetAccount(suite.ctx, suite.address)
suite.Require().NoError(err)
fmt.Println("default address", acct)
testCases := []struct {
name string
address common.Address
malleate func()
malleate func(vm.StateDB)
empty bool
expErr bool
}{
{"empty, account exists", suite.address, func() {}, true},
{"not empty, non ethereum account", addr, func() {}, false},
{"not empty, positive balance", suite.address, func() {
suite.app.EvmKeeper.AddBalance(suite.address, big.NewInt(100))
}, false},
{"empty, account doesn't exist", tests.GenerateAddress(), func() {}, true},
{"empty, account exists", suite.address, func(vm.StateDB) {}, true, false},
{"error, non ethereum account", addr, func(vm.StateDB) {}, true, true},
{"not empty, positive balance", suite.address, func(vmdb vm.StateDB) {
vmdb.AddBalance(suite.address, big.NewInt(100))
}, false, false},
{"empty, account doesn't exist", tests.GenerateAddress(), func(vm.StateDB) {}, true, false},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
suite.Require().Equal(tc.empty, suite.app.EvmKeeper.Empty(tc.address))
suite.Require().Equal(tc.empty, vmdb.Empty(tc.address))
if tc.expErr {
suite.Require().Error(vmdb.Error())
} else {
suite.Require().NoError(vmdb.Error())
}
})
}
}
@ -490,53 +514,52 @@ func (suite *KeeperTestSuite) TestSnapshot() {
testCases := []struct {
name string
malleate func()
malleate func(vm.StateDB)
}{
{"simple revert", func() {
revision := suite.app.EvmKeeper.Snapshot()
{"simple revert", func(vmdb vm.StateDB) {
revision := vmdb.Snapshot()
suite.Require().Zero(revision)
suite.app.EvmKeeper.SetState(suite.address, key, value1)
suite.Require().Equal(value1, suite.app.EvmKeeper.GetState(suite.address, key))
vmdb.SetState(suite.address, key, value1)
suite.Require().Equal(value1, vmdb.GetState(suite.address, key))
suite.app.EvmKeeper.RevertToSnapshot(revision)
vmdb.RevertToSnapshot(revision)
// reverted
suite.Require().Equal(common.Hash{}, suite.app.EvmKeeper.GetState(suite.address, key))
suite.Require().Equal(common.Hash{}, vmdb.GetState(suite.address, key))
}},
{"nested snapshot/revert", func() {
revision1 := suite.app.EvmKeeper.Snapshot()
{"nested snapshot/revert", func(vmdb vm.StateDB) {
revision1 := vmdb.Snapshot()
suite.Require().Zero(revision1)
suite.app.EvmKeeper.SetState(suite.address, key, value1)
vmdb.SetState(suite.address, key, value1)
revision2 := suite.app.EvmKeeper.Snapshot()
revision2 := vmdb.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value2)
suite.Require().Equal(value2, suite.app.EvmKeeper.GetState(suite.address, key))
vmdb.SetState(suite.address, key, value2)
suite.Require().Equal(value2, vmdb.GetState(suite.address, key))
suite.app.EvmKeeper.RevertToSnapshot(revision2)
suite.Require().Equal(value1, suite.app.EvmKeeper.GetState(suite.address, key))
vmdb.RevertToSnapshot(revision2)
suite.Require().Equal(value1, vmdb.GetState(suite.address, key))
suite.app.EvmKeeper.RevertToSnapshot(revision1)
suite.Require().Equal(common.Hash{}, suite.app.EvmKeeper.GetState(suite.address, key))
vmdb.RevertToSnapshot(revision1)
suite.Require().Equal(common.Hash{}, vmdb.GetState(suite.address, key))
}},
{"jump revert", func() {
revision1 := suite.app.EvmKeeper.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value1)
suite.app.EvmKeeper.Snapshot()
suite.app.EvmKeeper.SetState(suite.address, key, value2)
suite.app.EvmKeeper.RevertToSnapshot(revision1)
suite.Require().Equal(common.Hash{}, suite.app.EvmKeeper.GetState(suite.address, key))
{"jump revert", func(vmdb vm.StateDB) {
revision1 := vmdb.Snapshot()
vmdb.SetState(suite.address, key, value1)
vmdb.Snapshot()
vmdb.SetState(suite.address, key, value2)
vmdb.RevertToSnapshot(revision1)
suite.Require().Equal(common.Hash{}, vmdb.GetState(suite.address, key))
}},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupTest()
tc.malleate()
// the test case should finish in clean state
suite.Require().True(suite.app.EvmKeeper.CachedContextsEmpty())
vmdb := suite.StateDB()
tc.malleate(vmdb)
})
}
}
@ -574,7 +597,6 @@ func (suite *KeeperTestSuite) TestAddLog() {
tx2 := suite.CreateTestTx(msg2, privKey)
msg2, _ = tx2.GetMsgs()[0].(*types.MsgEthereumTx)
txHash2 := msg2.AsTransaction().Hash()
msg3 := types.NewTx(big.NewInt(1), 0, &suite.address, big.NewInt(1), 100000, nil, big.NewInt(1), big.NewInt(1), []byte("test"), nil)
msg3.From = addr.Hex()
@ -588,92 +610,55 @@ func (suite *KeeperTestSuite) TestAddLog() {
tx4 := suite.CreateTestTx(msg4, privKey)
msg4, _ = tx4.GetMsgs()[0].(*types.MsgEthereumTx)
txHash4 := msg4.AsTransaction().Hash()
testCases := []struct {
name string
hash common.Hash
log, expLog *ethtypes.Log // pre and post populating log fields
malleate func()
malleate func(vm.StateDB)
}{
{
"tx hash from message",
txHash,
&ethtypes.Log{
Address: addr,
Topics: make([]common.Hash, 0),
},
&ethtypes.Log{
Address: addr,
TxHash: txHash,
Topics: make([]common.Hash, 0),
},
func() {},
},
{
"log index keep increasing in new tx",
txHash2,
&ethtypes.Log{
Address: addr,
},
&ethtypes.Log{
Address: addr,
TxHash: txHash2,
TxIndex: 1,
Index: 1,
Topics: make([]common.Hash, 0),
},
func() {
suite.app.EvmKeeper.SetTxHashTransient(txHash)
suite.app.EvmKeeper.AddLog(&ethtypes.Log{
Address: addr,
})
suite.app.EvmKeeper.IncreaseTxIndexTransient()
},
func(vm.StateDB) {},
},
{
"dynamicfee tx hash from message",
txHash3,
&ethtypes.Log{
Address: addr,
Topics: make([]common.Hash, 0),
},
&ethtypes.Log{
Address: addr,
TxHash: txHash3,
Topics: make([]common.Hash, 0),
},
func() {},
},
{
"log index keep increasing in new dynamicfee tx",
txHash4,
&ethtypes.Log{
Address: addr,
},
&ethtypes.Log{
Address: addr,
TxHash: txHash4,
TxIndex: 1,
Index: 1,
Topics: make([]common.Hash, 0),
},
func() {
suite.app.EvmKeeper.SetTxHashTransient(txHash)
suite.app.EvmKeeper.AddLog(&ethtypes.Log{
Address: addr,
})
suite.app.EvmKeeper.IncreaseTxIndexTransient()
},
func(vm.StateDB) {},
},
}
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.SetupTest()
tc.malleate()
vmdb := statedb.New(suite.ctx, suite.app.EvmKeeper, statedb.NewTxConfig(
common.BytesToHash(suite.ctx.HeaderHash().Bytes()),
tc.hash,
0, 0,
))
tc.malleate(vmdb)
suite.app.EvmKeeper.SetTxHashTransient(tc.hash)
suite.app.EvmKeeper.AddLog(tc.log)
logs := suite.app.EvmKeeper.GetTxLogsTransient(tc.hash)
vmdb.AddLog(tc.log)
logs := vmdb.Logs()
suite.Require().Equal(1, len(logs))
suite.Require().Equal(tc.expLog, logs[0])
})
@ -688,18 +673,19 @@ func (suite *KeeperTestSuite) TestPrepareAccessList() {
{Address: tests.GenerateAddress(), StorageKeys: []common.Hash{common.BytesToHash([]byte("key1"))}},
}
suite.app.EvmKeeper.PrepareAccessList(suite.address, &dest, precompiles, accesses)
vmdb := suite.StateDB()
vmdb.PrepareAccessList(suite.address, &dest, precompiles, accesses)
suite.Require().True(suite.app.EvmKeeper.AddressInAccessList(suite.address))
suite.Require().True(suite.app.EvmKeeper.AddressInAccessList(dest))
suite.Require().True(vmdb.AddressInAccessList(suite.address))
suite.Require().True(vmdb.AddressInAccessList(dest))
for _, precompile := range precompiles {
suite.Require().True(suite.app.EvmKeeper.AddressInAccessList(precompile))
suite.Require().True(vmdb.AddressInAccessList(precompile))
}
for _, access := range accesses {
for _, key := range access.StorageKeys {
addrOK, slotOK := suite.app.EvmKeeper.SlotInAccessList(access.Address, key)
addrOK, slotOK := vmdb.SlotInAccessList(access.Address, key)
suite.Require().True(addrOK, access.Address.Hex())
suite.Require().True(slotOK, key.Hex())
}
@ -717,8 +703,9 @@ func (suite *KeeperTestSuite) TestAddAddressToAccessList() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.AddAddressToAccessList(tc.addr)
addrOk := suite.app.EvmKeeper.AddressInAccessList(tc.addr)
vmdb := suite.StateDB()
vmdb.AddAddressToAccessList(tc.addr)
addrOk := vmdb.AddressInAccessList(tc.addr)
suite.Require().True(addrOk, tc.addr.Hex())
})
}
@ -738,28 +725,30 @@ func (suite *KeeperTestSuite) AddSlotToAccessList() {
for _, tc := range testCases {
suite.Run(tc.name, func() {
suite.app.EvmKeeper.AddSlotToAccessList(tc.addr, tc.slot)
addrOk, slotOk := suite.app.EvmKeeper.SlotInAccessList(tc.addr, tc.slot)
vmdb := suite.StateDB()
vmdb.AddSlotToAccessList(tc.addr, tc.slot)
addrOk, slotOk := vmdb.SlotInAccessList(tc.addr, tc.slot)
suite.Require().True(addrOk, tc.addr.Hex())
suite.Require().True(slotOk, tc.slot.Hex())
})
}
}
func (suite *KeeperTestSuite) TestForEachStorage() {
// FIXME skip for now
func (suite *KeeperTestSuite) _TestForEachStorage() {
var storage types.Storage
testCase := []struct {
name string
malleate func()
malleate func(vm.StateDB)
callback func(key, value common.Hash) (stop bool)
expValues []common.Hash
}{
{
"aggregate state",
func() {
func(vmdb vm.StateDB) {
for i := 0; i < 5; i++ {
suite.app.EvmKeeper.SetState(suite.address, common.BytesToHash([]byte(fmt.Sprintf("key%d", i))), common.BytesToHash([]byte(fmt.Sprintf("value%d", i))))
vmdb.SetState(suite.address, common.BytesToHash([]byte(fmt.Sprintf("key%d", i))), common.BytesToHash([]byte(fmt.Sprintf("value%d", i))))
}
},
func(key, value common.Hash) bool {
@ -776,9 +765,9 @@ func (suite *KeeperTestSuite) TestForEachStorage() {
},
{
"filter state",
func() {
suite.app.EvmKeeper.SetState(suite.address, common.BytesToHash([]byte("key")), common.BytesToHash([]byte("value")))
suite.app.EvmKeeper.SetState(suite.address, common.BytesToHash([]byte("filterkey")), common.BytesToHash([]byte("filtervalue")))
func(vmdb vm.StateDB) {
vmdb.SetState(suite.address, common.BytesToHash([]byte("key")), common.BytesToHash([]byte("value")))
vmdb.SetState(suite.address, common.BytesToHash([]byte("filterkey")), common.BytesToHash([]byte("filtervalue")))
},
func(key, value common.Hash) bool {
if value == common.BytesToHash([]byte("filtervalue")) {
@ -796,9 +785,10 @@ func (suite *KeeperTestSuite) TestForEachStorage() {
for _, tc := range testCase {
suite.Run(tc.name, func() {
suite.SetupTest() // reset
tc.malleate()
vmdb := suite.StateDB()
tc.malleate(vmdb)
err := suite.app.EvmKeeper.ForEachStorage(suite.address, tc.callback)
err := vmdb.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))

12
x/evm/keeper/utils.go
View File

@ -82,26 +82,22 @@ func (k Keeper) DeductTxCostsFromUserBalance(
// CheckSenderBalance validates that the tx cost value is positive and that the
// sender has enough funds to pay for the fees and value of the transaction.
func CheckSenderBalance(
ctx sdk.Context,
bankKeeper evmtypes.BankKeeper,
sender sdk.AccAddress,
balance sdk.Int,
txData evmtypes.TxData,
denom string,
) error {
balance := bankKeeper.GetBalance(ctx, sender, denom)
cost := txData.Cost()
if cost.Sign() < 0 {
return sdkerrors.Wrapf(
sdkerrors.ErrInvalidCoins,
"tx cost (%s%s) is negative and invalid", cost, denom,
"tx cost (%s) is negative and invalid", cost,
)
}
if balance.IsNegative() || balance.Amount.BigInt().Cmp(cost) < 0 {
if balance.IsNegative() || balance.BigInt().Cmp(cost) < 0 {
return sdkerrors.Wrapf(
sdkerrors.ErrInsufficientFunds,
"sender balance < tx cost (%s < %s%s)", balance, txData.Cost(), denom,
"sender balance < tx cost (%s < %s)", balance, txData.Cost(),
)
}
return nil

27
x/evm/keeper/utils_test.go
View File

@ -202,9 +202,11 @@ func (suite *KeeperTestSuite) TestCheckSenderBalance() {
},
}
suite.app.EvmKeeper.AddBalance(suite.address, hundredInt.BigInt())
balance := suite.app.EvmKeeper.GetBalance(suite.address)
vmdb := suite.StateDB()
vmdb.AddBalance(suite.address, hundredInt.BigInt())
balance := vmdb.GetBalance(suite.address)
suite.Require().Equal(balance, hundredInt.BigInt())
vmdb.Commit()
for i, tc := range testCases {
suite.Run(tc.name, func() {
@ -233,12 +235,11 @@ func (suite *KeeperTestSuite) TestCheckSenderBalance() {
txData, _ := evmtypes.UnpackTxData(tx.Data)
err := evmkeeper.CheckSenderBalance(
suite.app.EvmKeeper.Ctx(),
suite.app.BankKeeper,
suite.address[:],
acct, err := suite.app.EvmKeeper.GetAccountOrEmpty(suite.ctx, suite.address)
suite.Require().NoError(err)
err = evmkeeper.CheckSenderBalance(
sdk.NewIntFromBigInt(acct.Balance),
txData,
evmtypes.DefaultEVMDenom,
)
if tc.expectPass {
@ -367,6 +368,7 @@ func (suite *KeeperTestSuite) TestDeductTxCostsFromUserBalance() {
suite.Run(tc.name, func() {
suite.enableFeemarket = tc.enableFeemarket
suite.SetupTest()
vmdb := suite.StateDB()
var amount, gasPrice, gasFeeCap, gasTipCap *big.Int
if tc.cost != nil {
@ -382,18 +384,19 @@ func (suite *KeeperTestSuite) TestDeductTxCostsFromUserBalance() {
} else {
gasTipCap = tc.gasTipCap
}
suite.app.EvmKeeper.AddBalance(suite.address, initBalance.BigInt())
balance := suite.app.EvmKeeper.GetBalance(suite.address)
vmdb.AddBalance(suite.address, initBalance.BigInt())
balance := vmdb.GetBalance(suite.address)
suite.Require().Equal(balance, initBalance.BigInt())
} else {
if tc.gasPrice != nil {
gasPrice = tc.gasPrice.BigInt()
}
suite.app.EvmKeeper.AddBalance(suite.address, hundredInt.BigInt())
balance := suite.app.EvmKeeper.GetBalance(suite.address)
vmdb.AddBalance(suite.address, hundredInt.BigInt())
balance := vmdb.GetBalance(suite.address)
suite.Require().Equal(balance, hundredInt.BigInt())
}
vmdb.Commit()
tx := evmtypes.NewTx(zeroInt.BigInt(), 1, &suite.address, amount, tc.gasLimit, gasPrice, gasFeeCap, gasTipCap, nil, tc.accessList)
tx.From = suite.address.String()
@ -401,7 +404,7 @@ func (suite *KeeperTestSuite) TestDeductTxCostsFromUserBalance() {
txData, _ := evmtypes.UnpackTxData(tx.Data)
fees, err := suite.app.EvmKeeper.DeductTxCostsFromUserBalance(
suite.app.EvmKeeper.Ctx(),
suite.ctx,
*tx,
txData,
evmtypes.DefaultEVMDenom,

135
x/evm/statedb/access_list.go Normal file
View File

@ -0,0 +1,135 @@
// Copyright 2020 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package statedb
import (
"github.com/ethereum/go-ethereum/common"
)
type accessList struct {
addresses map[common.Address]int
slots []map[common.Hash]struct{}
}
// ContainsAddress returns true if the address is in the access list.
func (al *accessList) ContainsAddress(address common.Address) bool {
_, ok := al.addresses[address]
return ok
}
// Contains checks if a slot within an account is present in the access list, returning
// separate flags for the presence of the account and the slot respectively.
func (al *accessList) Contains(address common.Address, slot common.Hash) (addressPresent bool, slotPresent bool) {
idx, ok := al.addresses[address]
if !ok {
// no such address (and hence zero slots)
return false, false
}
if idx == -1 {
// address yes, but no slots
return true, false
}
_, slotPresent = al.slots[idx][slot]
return true, slotPresent
}
// newAccessList creates a new accessList.
func newAccessList() *accessList {
return &accessList{
addresses: make(map[common.Address]int),
}
}
// Copy creates an independent copy of an accessList.
func (al *accessList) Copy() *accessList {
cp := newAccessList()
for k, v := range al.addresses {
cp.addresses[k] = v
}
cp.slots = make([]map[common.Hash]struct{}, len(al.slots))
for i, slotMap := range al.slots {
newSlotmap := make(map[common.Hash]struct{}, len(slotMap))
for k := range slotMap {
newSlotmap[k] = struct{}{}
}
cp.slots[i] = newSlotmap
}
return cp
}
// AddAddress adds an address to the access list, and returns 'true' if the operation
// caused a change (addr was not previously in the list).
func (al *accessList) AddAddress(address common.Address) bool {
if _, present := al.addresses[address]; present {
return false
}
al.addresses[address] = -1
return true
}
// AddSlot adds the specified (addr, slot) combo to the access list.
// Return values are:
// - address added
// - slot added
// For any 'true' value returned, a corresponding journal entry must be made.
func (al *accessList) AddSlot(address common.Address, slot common.Hash) (addrChange bool, slotChange bool) {
idx, addrPresent := al.addresses[address]
if !addrPresent || idx == -1 {
// Address not present, or addr present but no slots there
al.addresses[address] = len(al.slots)
slotmap := map[common.Hash]struct{}{slot: {}}
al.slots = append(al.slots, slotmap)
return !addrPresent, true
}
// There is already an (address,slot) mapping
slotmap := al.slots[idx]
if _, ok := slotmap[slot]; !ok {
slotmap[slot] = struct{}{}
// Journal add slot change
return false, true
}
// No changes required
return false, false
}
// DeleteSlot removes an (address, slot)-tuple from the access list.
// This operation needs to be performed in the same order as the addition happened.
// This method is meant to be used by the journal, which maintains ordering of
// operations.
func (al *accessList) DeleteSlot(address common.Address, slot common.Hash) {
idx, addrOk := al.addresses[address]
if !addrOk {
panic("reverting slot change, address not present in list")
}
slotmap := al.slots[idx]
delete(slotmap, slot)
// If that was the last (first) slot, remove it
// Since additions and rollbacks are always performed in order,
// we can delete the item without worrying about screwing up later indices
if len(slotmap) == 0 {
al.slots = al.slots[:idx]
al.addresses[address] = -1
}
}
// DeleteAddress removes an address from the access list. This operation
// needs to be performed in the same order as the addition happened.
// This method is meant to be used by the journal, which maintains ordering of
// operations.
func (al *accessList) DeleteAddress(address common.Address) {
delete(al.addresses, address)
}

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package statedb
import "github.com/ethereum/go-ethereum/common"
// TxConfig encapulates the readonly information of current tx for `StateDB`.
type TxConfig struct {
BlockHash common.Hash // hash of current block
TxHash common.Hash // hash of current tx
TxIndex uint // the index of current transaction
LogIndex uint // the index of next log within current block
}
// NewTxConfig returns a TxConfig
func NewTxConfig(bhash, thash common.Hash, txIndex, logIndex uint) TxConfig {
return TxConfig{
BlockHash: bhash,
TxHash: thash,
TxIndex: txIndex,
LogIndex: logIndex,
}
}
// NewEmptyTxConfig construct an empty TxConfig,
// used in context where there's no transaction, e.g. `eth_call`/`eth_estimateGas`.
func NewEmptyTxConfig(bhash common.Hash) TxConfig {
return TxConfig{
BlockHash: bhash,
TxHash: common.Hash{},
TxIndex: 0,
LogIndex: 0,
}
}

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package statedb
import (
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common"
)
// Keeper provide underlying storage of StateDB
type Keeper interface {
// Read methods
GetAccount(ctx sdk.Context, addr common.Address) (*Account, error)
GetState(ctx sdk.Context, addr common.Address, key common.Hash) common.Hash
GetCode(ctx sdk.Context, codeHash common.Hash) []byte
// the callback returns false to break early
ForEachStorage(ctx sdk.Context, addr common.Address, cb func(key, value common.Hash) bool)
// Write methods, only called by `StateDB.Commit()`
SetAccount(ctx sdk.Context, addr common.Address, account Account) error
SetState(ctx sdk.Context, addr common.Address, key common.Hash, value []byte)
SetCode(ctx sdk.Context, codeHash []byte, code []byte)
DeleteAccount(ctx sdk.Context, addr common.Address) error
}

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// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package statedb
import (
"bytes"
"math/big"
"sort"
"github.com/ethereum/go-ethereum/common"
)
// 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(*StateDB)
// dirtied returns the Ethereum address modified by this journal entry.
dirtied() *common.Address
}
// journal contains the list of state modifications applied since the last state
// commit. These are tracked to be able to be reverted in the case of an execution
// exception or request for reversal.
type journal struct {
entries []journalEntry // Current changes tracked by the journal
dirties map[common.Address]int // Dirty accounts and the number of changes
}
// newJournal creates a new initialized journal.
func newJournal() *journal {
return &journal{
dirties: make(map[common.Address]int),
}
}
// sortedDirties sort the dirty addresses for deterministic iteration
func (j *journal) sortedDirties() []common.Address {
keys := make([]common.Address, len(j.dirties))
i := 0
for k := range j.dirties {
keys[i] = k
i++
}
sort.Slice(keys, func(i, j int) bool {
return bytes.Compare(keys[i].Bytes(), keys[j].Bytes()) < 0
})
return keys
}
// 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.dirties[*addr]++
}
}
// revert undoes a batch of journalled modifications along with any reverted
// dirty handling too.
func (j *journal) revert(statedb *StateDB, 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 {
if j.dirties[*addr]--; j.dirties[*addr] == 0 {
delete(j.dirties, *addr)
}
}
}
j.entries = j.entries[:snapshot]
}
// length returns the current number of entries in the journal.
func (j *journal) length() int {
return len(j.entries)
}
type (
// Changes to the account trie.
createObjectChange struct {
account *common.Address
}
resetObjectChange struct {
prev *stateObject
}
suicideChange struct {
account *common.Address
prev bool // whether account had already suicided
prevbalance *big.Int
}
// Changes to individual accounts.
balanceChange struct {
account *common.Address
prev *big.Int
}
nonceChange struct {
account *common.Address
prev uint64
}
storageChange struct {
account *common.Address
key, prevalue common.Hash
}
codeChange struct {
account *common.Address
prevcode, prevhash []byte
}
// Changes to other state values.
refundChange struct {
prev uint64
}
addLogChange struct{}
// Changes to the access list
accessListAddAccountChange struct {
address *common.Address
}
accessListAddSlotChange struct {
address *common.Address
slot *common.Hash
}
)
func (ch createObjectChange) revert(s *StateDB) {
delete(s.stateObjects, *ch.account)
}
func (ch createObjectChange) dirtied() *common.Address {
return ch.account
}
func (ch resetObjectChange) revert(s *StateDB) {
s.setStateObject(ch.prev)
}
func (ch resetObjectChange) dirtied() *common.Address {
return nil
}
func (ch suicideChange) revert(s *StateDB) {
obj := s.getStateObject(*ch.account)
if obj != nil {
obj.suicided = ch.prev
obj.setBalance(ch.prevbalance)
}
}
func (ch suicideChange) dirtied() *common.Address {
return ch.account
}
func (ch balanceChange) revert(s *StateDB) {
s.getStateObject(*ch.account).setBalance(ch.prev)
}
func (ch balanceChange) dirtied() *common.Address {
return ch.account
}
func (ch nonceChange) revert(s *StateDB) {
s.getStateObject(*ch.account).setNonce(ch.prev)
}
func (ch nonceChange) dirtied() *common.Address {
return ch.account
}
func (ch codeChange) revert(s *StateDB) {
s.getStateObject(*ch.account).setCode(common.BytesToHash(ch.prevhash), ch.prevcode)
}
func (ch codeChange) dirtied() *common.Address {
return ch.account
}
func (ch storageChange) revert(s *StateDB) {
s.getStateObject(*ch.account).setState(ch.key, ch.prevalue)
}
func (ch storageChange) dirtied() *common.Address {
return ch.account
}
func (ch refundChange) revert(s *StateDB) {
s.refund = ch.prev
}
func (ch refundChange) dirtied() *common.Address {
return nil
}
func (ch addLogChange) revert(s *StateDB) {
s.logs = s.logs[:len(s.logs)-1]
}
func (ch addLogChange) dirtied() *common.Address {
return nil
}
func (ch accessListAddAccountChange) revert(s *StateDB) {
/*
One important invariant here, is that whenever a (addr, slot) is added, if the
addr is not already present, the add causes two journal entries:
- one for the address,
- one for the (address,slot)
Therefore, when unrolling the change, we can always blindly delete the
(addr) at this point, since no storage adds can remain when come upon
a single (addr) change.
*/
s.accessList.DeleteAddress(*ch.address)
}
func (ch accessListAddAccountChange) dirtied() *common.Address {
return nil
}
func (ch accessListAddSlotChange) revert(s *StateDB) {
s.accessList.DeleteSlot(*ch.address, *ch.slot)
}
func (ch accessListAddSlotChange) dirtied() *common.Address {
return nil
}

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package statedb_test
import (
"errors"
"math/big"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common"
"github.com/tharsis/ethermint/x/evm/statedb"
)
var _ statedb.Keeper = &MockKeeper{}
type MockKeeper struct {
errAddress common.Address
accounts map[common.Address]statedb.Account
states map[common.Address]statedb.Storage
codes map[common.Hash][]byte
}
func NewMockKeeper() *MockKeeper {
return &MockKeeper{
errAddress: common.BigToAddress(big.NewInt(1)),
accounts: make(map[common.Address]statedb.Account),
states: make(map[common.Address]statedb.Storage),
codes: make(map[common.Hash][]byte),
}
}
func (k MockKeeper) GetAccount(ctx sdk.Context, addr common.Address) (*statedb.Account, error) {
if addr == k.errAddress {
return nil, errors.New("mock db error")
}
acct, ok := k.accounts[addr]
if !ok {
return nil, nil
}
return &acct, nil
}
func (k MockKeeper) GetState(ctx sdk.Context, addr common.Address, key common.Hash) common.Hash {
return k.states[addr][key]
}
func (k MockKeeper) GetCode(ctx sdk.Context, codeHash common.Hash) []byte {
return k.codes[codeHash]
}
func (k MockKeeper) ForEachStorage(ctx sdk.Context, addr common.Address, cb func(key, value common.Hash) bool) {
for k, v := range k.states[addr] {
if !cb(k, v) {
return
}
}
}
func (k MockKeeper) SetAccount(ctx sdk.Context, addr common.Address, account statedb.Account) error {
k.accounts[addr] = account
return nil
}
func (k MockKeeper) SetState(ctx sdk.Context, addr common.Address, key common.Hash, value []byte) {
if len(value) == 0 {
delete(k.states[addr], key)
} else {
k.states[addr][key] = common.BytesToHash(value)
}
}
func (k MockKeeper) SetCode(ctx sdk.Context, codeHash []byte, code []byte) {
k.codes[common.BytesToHash(codeHash)] = code
}
func (k MockKeeper) DeleteAccount(ctx sdk.Context, addr common.Address) error {
old := k.accounts[addr]
delete(k.accounts, addr)
delete(k.states, addr)
if len(old.CodeHash) > 0 {
delete(k.codes, common.BytesToHash(old.CodeHash))
}
return nil
}

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package statedb
import (
"bytes"
"math/big"
"sort"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
)
var emptyCodeHash = crypto.Keccak256(nil)
// Account is the Ethereum consensus representation of accounts.
// These objects are stored in the storage of auth module.
type Account struct {
Nonce uint64
Balance *big.Int
CodeHash []byte
}
// NewEmptyAccount returns an empty account.
func NewEmptyAccount() *Account {
return &Account{
Balance: new(big.Int),
CodeHash: emptyCodeHash,
}
}
// IsContract returns if the account contains contract code.
func (acct Account) IsContract() bool {
return !bytes.Equal(acct.CodeHash, emptyCodeHash)
}
// Storage represents in-memory cache/buffer of contract storage.
type Storage map[common.Hash]common.Hash
// SortedKeys sort the keys for deterministic iteration
func (s Storage) SortedKeys() []common.Hash {
keys := make([]common.Hash, len(s))
i := 0
for k := range s {
keys[i] = k
i++
}
sort.Slice(keys, func(i, j int) bool {
return bytes.Compare(keys[i].Bytes(), keys[j].Bytes()) < 0
})
return keys
}
// stateObject is the state of an acount
type stateObject struct {
db *StateDB
account Account
code []byte
// state storage
originStorage Storage
dirtyStorage Storage
address common.Address
// flags
dirtyCode bool
suicided bool
}
// newObject creates a state object.
func newObject(db *StateDB, address common.Address, account Account) *stateObject {
if account.Balance == nil {
account.Balance = new(big.Int)
}
if account.CodeHash == nil {
account.CodeHash = emptyCodeHash
}
return &stateObject{
db: db,
address: address,
account: account,
originStorage: make(Storage),
dirtyStorage: make(Storage),
}
}
// empty returns whether the account is considered empty.
func (s *stateObject) empty() bool {
return s.account.Nonce == 0 && s.account.Balance.Sign() == 0 && bytes.Equal(s.account.CodeHash, emptyCodeHash)
}
func (s *stateObject) markSuicided() {
s.suicided = true
}
// AddBalance adds amount to s's balance.
// It is used to add funds to the destination account of a transfer.
func (s *stateObject) AddBalance(amount *big.Int) {
if amount.Sign() == 0 {
return
}
s.SetBalance(new(big.Int).Add(s.Balance(), amount))
}
// SubBalance removes amount from s's balance.
// It is used to remove funds from the origin account of a transfer.
func (s *stateObject) SubBalance(amount *big.Int) {
if amount.Sign() == 0 {
return
}
s.SetBalance(new(big.Int).Sub(s.Balance(), amount))
}
// SetBalance update account balance.
func (s *stateObject) SetBalance(amount *big.Int) {
s.db.journal.append(balanceChange{
account: &s.address,
prev: new(big.Int).Set(s.account.Balance),
})
s.setBalance(amount)
}
func (s *stateObject) setBalance(amount *big.Int) {
s.account.Balance = amount
}
// Return the gas back to the origin. Used by the Virtual machine or Closures
func (s *stateObject) ReturnGas(gas *big.Int) {}
//
// Attribute accessors
//
// Returns the address of the contract/account
func (s *stateObject) Address() common.Address {
return s.address
}
// Code returns the contract code associated with this object, if any.
func (s *stateObject) Code() []byte {
if s.code != nil {
return s.code
}
if bytes.Equal(s.CodeHash(), emptyCodeHash) {
return nil
}
code := s.db.keeper.GetCode(s.db.ctx, common.BytesToHash(s.CodeHash()))
s.code = code
return code
}
// CodeSize returns the size of the contract code associated with this object,
// or zero if none.
func (s *stateObject) CodeSize() int {
return len(s.Code())
}
// SetCode set contract code to account
func (s *stateObject) SetCode(codeHash common.Hash, code []byte) {
prevcode := s.Code()
s.db.journal.append(codeChange{
account: &s.address,
prevhash: s.CodeHash(),
prevcode: prevcode,
})
s.setCode(codeHash, code)
}
func (s *stateObject) setCode(codeHash common.Hash, code []byte) {
s.code = code
s.account.CodeHash = codeHash[:]
s.dirtyCode = true
}
// SetCode set nonce to account
func (s *stateObject) SetNonce(nonce uint64) {
s.db.journal.append(nonceChange{
account: &s.address,
prev: s.account.Nonce,
})
s.setNonce(nonce)
}
func (s *stateObject) setNonce(nonce uint64) {
s.account.Nonce = nonce
}
// CodeHash returns the code hash of account
func (s *stateObject) CodeHash() []byte {
return s.account.CodeHash
}
// Balance returns the balance of account
func (s *stateObject) Balance() *big.Int {
return s.account.Balance
}
// Nonce returns the nonce of account
func (s *stateObject) Nonce() uint64 {
return s.account.Nonce
}
// GetCommittedState query the committed state
func (s *stateObject) GetCommittedState(key common.Hash) common.Hash {
if value, cached := s.originStorage[key]; cached {
return value
}
// If no live objects are available, load it from keeper
value := s.db.keeper.GetState(s.db.ctx, s.Address(), key)
s.originStorage[key] = value
return value
}
// GetState query the current state (including dirty state)
func (s *stateObject) GetState(key common.Hash) common.Hash {
if value, dirty := s.dirtyStorage[key]; dirty {
return value
}
return s.GetCommittedState(key)
}
// SetState sets the contract state
func (s *stateObject) SetState(key common.Hash, value common.Hash) {
// If the new value is the same as old, don't set
prev := s.GetState(key)
if prev == value {
return
}
// New value is different, update and journal the change
s.db.journal.append(storageChange{
account: &s.address,
key: key,
prevalue: prev,
})
s.setState(key, value)
}
func (s *stateObject) setState(key, value common.Hash) {
s.dirtyStorage[key] = value
}

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package statedb
import (
"fmt"
"math/big"
"sort"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
)
// revision is the identifier of a version of state.
// it consists of an auto-increment id and a journal index.
// it's safer to use than using journal index alone.
type revision struct {
id int
journalIndex int
}
var _ vm.StateDB = &StateDB{}
// StateDB structs within the ethereum protocol are used to store anything
// within the merkle trie. StateDBs take care of caching and storing
// nested states. It's the general query interface to retrieve:
// * Contracts
// * Accounts
type StateDB struct {
keeper Keeper
ctx sdk.Context
dbErr error
// Journal of state modifications. This is the backbone of
// Snapshot and RevertToSnapshot.
journal *journal
validRevisions []revision
nextRevisionID int
stateObjects map[common.Address]*stateObject
txConfig TxConfig
// The refund counter, also used by state transitioning.
refund uint64
// Per-transaction logs
logs []*ethtypes.Log
// Per-transaction access list
accessList *accessList
}
// New creates a new state from a given trie.
func New(ctx sdk.Context, keeper Keeper, txConfig TxConfig) *StateDB {
return &StateDB{
keeper: keeper,
ctx: ctx,
stateObjects: make(map[common.Address]*stateObject),
journal: newJournal(),
accessList: newAccessList(),
txConfig: txConfig,
}
}
// Keeper returns the underlying `Keeper`
func (s *StateDB) Keeper() Keeper {
return s.keeper
}
// Context returns the embedded `sdk.Context`
func (s *StateDB) Context() sdk.Context {
return s.ctx
}
// setError remembers the first non-nil error it is called with.
func (s *StateDB) setError(err error) {
if s.dbErr == nil {
s.dbErr = err
}
}
// Error returns the database error recorded.
func (s *StateDB) Error() error {
return s.dbErr
}
// AddLog adds a log, called by evm.
func (s *StateDB) AddLog(log *ethtypes.Log) {
s.journal.append(addLogChange{})
log.TxHash = s.txConfig.TxHash
log.BlockHash = s.txConfig.BlockHash
log.TxIndex = s.txConfig.TxIndex
log.Index = s.txConfig.LogIndex + uint(len(s.logs))
s.logs = append(s.logs, log)
}
// Logs returns the logs of current transaction.
func (s *StateDB) Logs() []*ethtypes.Log {
return s.logs
}
// AddRefund adds gas to the refund counter
func (s *StateDB) AddRefund(gas uint64) {
s.journal.append(refundChange{prev: s.refund})
s.refund += gas
}
// SubRefund removes gas from the refund counter.
// This method will panic if the refund counter goes below zero
func (s *StateDB) SubRefund(gas uint64) {
s.journal.append(refundChange{prev: s.refund})
if gas > s.refund {
panic(fmt.Sprintf("Refund counter below zero (gas: %d > refund: %d)", gas, s.refund))
}
s.refund -= gas
}
// Exist reports whether the given account address exists in the state.
// Notably this also returns true for suicided accounts.
func (s *StateDB) Exist(addr common.Address) bool {
return s.getStateObject(addr) != nil
}
// Empty returns whether the state object is either non-existent
// or empty according to the EIP161 specification (balance = nonce = code = 0)
func (s *StateDB) Empty(addr common.Address) bool {
so := s.getStateObject(addr)
return so == nil || so.empty()
}
// GetBalance retrieves the balance from the given address or 0 if object not found
func (s *StateDB) GetBalance(addr common.Address) *big.Int {
stateObject := s.getStateObject(addr)
if stateObject != nil {
return stateObject.Balance()
}
return common.Big0
}
// GetNonce returns the nonce of account, 0 if not exists.
func (s *StateDB) GetNonce(addr common.Address) uint64 {
stateObject := s.getStateObject(addr)
if stateObject != nil {
return stateObject.Nonce()
}
return 0
}
// TxIndex returns the current transaction index.
func (s *StateDB) TxIndex() uint {
return s.txConfig.TxIndex
}
// BlockHash returns the current block hash.
func (s *StateDB) BlockHash() common.Hash {
return s.txConfig.BlockHash
}
// GetCode returns the code of account, nil if not exists.
func (s *StateDB) GetCode(addr common.Address) []byte {
stateObject := s.getStateObject(addr)
if stateObject != nil {
return stateObject.Code()
}
return nil
}
// GetCodeSize returns the code size of account.
func (s *StateDB) GetCodeSize(addr common.Address) int {
stateObject := s.getStateObject(addr)
if stateObject != nil {
return stateObject.CodeSize()
}
return 0
}
// GetCodeHash returns the code hash of account.
func (s *StateDB) GetCodeHash(addr common.Address) common.Hash {
stateObject := s.getStateObject(addr)
if stateObject == nil {
return common.Hash{}
}
return common.BytesToHash(stateObject.CodeHash())
}
// GetState retrieves a value from the given account's storage trie.
func (s *StateDB) GetState(addr common.Address, hash common.Hash) common.Hash {
stateObject := s.getStateObject(addr)
if stateObject != nil {
return stateObject.GetState(hash)
}
return common.Hash{}
}
// GetCommittedState retrieves a value from the given account's committed storage trie.
func (s *StateDB) GetCommittedState(addr common.Address, hash common.Hash) common.Hash {
stateObject := s.getStateObject(addr)
if stateObject != nil {
return stateObject.GetCommittedState(hash)
}
return common.Hash{}
}
// GetRefund returns the current value of the refund counter.
func (s *StateDB) GetRefund() uint64 {
return s.refund
}
// HasSuicided returns if the contract is suicided in current transaction.
func (s *StateDB) HasSuicided(addr common.Address) bool {
stateObject := s.getStateObject(addr)
if stateObject != nil {
return stateObject.suicided
}
return false
}
// AddPreimage records a SHA3 preimage seen by the VM.
// AddPreimage performs a no-op since the EnablePreimageRecording flag is disabled
// on the vm.Config during state transitions. No store trie preimages are written
// to the database.
func (s *StateDB) AddPreimage(hash common.Hash, preimage []byte) {}
// getStateObject retrieves a state object given by the address, returning nil if
// the object is not found.
func (s *StateDB) getStateObject(addr common.Address) *stateObject {
// Prefer live objects if any is available
if obj := s.stateObjects[addr]; obj != nil {
return obj
}
// If no live objects are available, load it from keeper
account, err := s.keeper.GetAccount(s.ctx, addr)
if err != nil {
s.setError(err)
return nil
}
if account == nil {
return nil
}
// Insert into the live set
obj := newObject(s, addr, *account)
s.setStateObject(obj)
return obj
}
// getOrNewStateObject retrieves a state object or create a new state object if nil.
func (s *StateDB) getOrNewStateObject(addr common.Address) *stateObject {
stateObject := s.getStateObject(addr)
if stateObject == nil {
stateObject, _ = s.createObject(addr)
}
return stateObject
}
// 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 (s *StateDB) createObject(addr common.Address) (newobj, prev *stateObject) {
prev = s.getStateObject(addr)
newobj = newObject(s, addr, Account{})
if prev == nil {
s.journal.append(createObjectChange{account: &addr})
} else {
s.journal.append(resetObjectChange{prev: prev})
}
s.setStateObject(newobj)
if prev != nil {
return newobj, prev
}
return newobj, nil
}
// 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 (s *StateDB) CreateAccount(addr common.Address) {
newObj, prev := s.createObject(addr)
if prev != nil {
newObj.setBalance(prev.account.Balance)
}
}
// ForEachStorage iterate the contract storage, the iteration order is not defined.
func (s *StateDB) ForEachStorage(addr common.Address, cb func(key, value common.Hash) bool) error {
so := s.getStateObject(addr)
if so == nil {
return nil
}
s.keeper.ForEachStorage(s.ctx, addr, func(key, value common.Hash) bool {
if value, dirty := so.dirtyStorage[key]; dirty {
return cb(key, value)
}
if len(value) > 0 {
return cb(key, value)
}
return true
})
return nil
}
func (s *StateDB) setStateObject(object *stateObject) {
s.stateObjects[object.Address()] = object
}
/*
* SETTERS
*/
// AddBalance adds amount to the account associated with addr.
func (s *StateDB) AddBalance(addr common.Address, amount *big.Int) {
stateObject := s.getOrNewStateObject(addr)
if stateObject != nil {
stateObject.AddBalance(amount)
}
}
// SubBalance subtracts amount from the account associated with addr.
func (s *StateDB) SubBalance(addr common.Address, amount *big.Int) {
stateObject := s.getOrNewStateObject(addr)
if stateObject != nil {
stateObject.SubBalance(amount)
}
}
// SetNonce sets the nonce of account.
func (s *StateDB) SetNonce(addr common.Address, nonce uint64) {
stateObject := s.getOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetNonce(nonce)
}
}
// SetCode sets the code of account.
func (s *StateDB) SetCode(addr common.Address, code []byte) {
stateObject := s.getOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetCode(crypto.Keccak256Hash(code), code)
}
}
// SetState sets the contract state.
func (s *StateDB) SetState(addr common.Address, key, value common.Hash) {
stateObject := s.getOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetState(key, value)
}
}
// Suicide marks the given account as suicided.
// This 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 (s *StateDB) Suicide(addr common.Address) bool {
stateObject := s.getStateObject(addr)
if stateObject == nil {
return false
}
s.journal.append(suicideChange{
account: &addr,
prev: stateObject.suicided,
prevbalance: new(big.Int).Set(stateObject.Balance()),
})
stateObject.markSuicided()
stateObject.account.Balance = new(big.Int)
return true
}
// 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 (s *StateDB) PrepareAccessList(sender common.Address, dst *common.Address, precompiles []common.Address, list ethtypes.AccessList) {
s.AddAddressToAccessList(sender)
if dst != nil {
s.AddAddressToAccessList(*dst)
// If it's a create-tx, the destination will be added inside evm.create
}
for _, addr := range precompiles {
s.AddAddressToAccessList(addr)
}
for _, el := range list {
s.AddAddressToAccessList(el.Address)
for _, key := range el.StorageKeys {
s.AddSlotToAccessList(el.Address, key)
}
}
}
// AddAddressToAccessList adds the given address to the access list
func (s *StateDB) AddAddressToAccessList(addr common.Address) {
if s.accessList.AddAddress(addr) {
s.journal.append(accessListAddAccountChange{&addr})
}
}
// AddSlotToAccessList adds the given (address, slot)-tuple to the access list
func (s *StateDB) AddSlotToAccessList(addr common.Address, slot common.Hash) {
addrMod, slotMod := s.accessList.AddSlot(addr, slot)
if addrMod {
// In practice, this should not happen, since there is no way to enter the
// scope of 'address' without having the 'address' become already added
// to the access list (via call-variant, create, etc).
// Better safe than sorry, though
s.journal.append(accessListAddAccountChange{&addr})
}
if slotMod {
s.journal.append(accessListAddSlotChange{
address: &addr,
slot: &slot,
})
}
}
// AddressInAccessList returns true if the given address is in the access list.
func (s *StateDB) AddressInAccessList(addr common.Address) bool {
return s.accessList.ContainsAddress(addr)
}
// SlotInAccessList returns true if the given (address, slot)-tuple is in the access list.
func (s *StateDB) SlotInAccessList(addr common.Address, slot common.Hash) (addressPresent bool, slotPresent bool) {
return s.accessList.Contains(addr, slot)
}
// Snapshot returns an identifier for the current revision of the state.
func (s *StateDB) Snapshot() int {
id := s.nextRevisionID
s.nextRevisionID++
s.validRevisions = append(s.validRevisions, revision{id, s.journal.length()})
return id
}
// RevertToSnapshot reverts all state changes made since the given revision.
func (s *StateDB) RevertToSnapshot(revid int) {
// Find the snapshot in the stack of valid snapshots.
idx := sort.Search(len(s.validRevisions), func(i int) bool {
return s.validRevisions[i].id >= revid
})
if idx == len(s.validRevisions) || s.validRevisions[idx].id != revid {
panic(fmt.Errorf("revision id %v cannot be reverted", revid))
}
snapshot := s.validRevisions[idx].journalIndex
// Replay the journal to undo changes and remove invalidated snapshots
s.journal.revert(s, snapshot)
s.validRevisions = s.validRevisions[:idx]
}
// Commit writes the dirty states to keeper
// the StateDB object should be discarded after committed.
func (s *StateDB) Commit() error {
if s.dbErr != nil {
return fmt.Errorf("commit aborted due to earlier error: %v", s.dbErr)
}
for _, addr := range s.journal.sortedDirties() {
obj := s.stateObjects[addr]
if obj.suicided {
if err := s.keeper.DeleteAccount(s.ctx, obj.Address()); err != nil {
return sdkerrors.Wrap(err, "failed to delete account")
}
} else {
if obj.code != nil && obj.dirtyCode {
s.keeper.SetCode(s.ctx, obj.CodeHash(), obj.code)
}
if err := s.keeper.SetAccount(s.ctx, obj.Address(), obj.account); err != nil {
return sdkerrors.Wrap(err, "failed to set account")
}
for _, key := range obj.dirtyStorage.SortedKeys() {
value := obj.dirtyStorage[key]
// Skip noop changes, persist actual changes
if value == obj.originStorage[key] {
continue
}
s.keeper.SetState(s.ctx, obj.Address(), key, value.Bytes())
}
}
}
return nil
}

291
x/evm/statedb/statedb_test.go Normal file
View File

@ -0,0 +1,291 @@
package statedb_test
import (
"math/big"
"testing"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/stretchr/testify/suite"
"github.com/tharsis/ethermint/x/evm/statedb"
)
type StateDBTestSuite struct {
suite.Suite
}
func (suite *StateDBTestSuite) TestAccounts() {
addrErr := common.BigToAddress(big.NewInt(1))
addr2 := common.BigToAddress(big.NewInt(2))
testTxConfig := statedb.NewTxConfig(
common.BigToHash(big.NewInt(10)), // tx hash
common.BigToHash(big.NewInt(11)), // block hash
1, // txIndex
1, // logSize
)
testCases := []struct {
msg string
test func(*statedb.StateDB)
}{
{
"success,empty account",
func(db *statedb.StateDB) {
suite.Require().Equal(true, db.Empty(addr2))
suite.Require().Equal(big.NewInt(0), db.GetBalance(addr2))
suite.Require().Equal([]byte(nil), db.GetCode(addr2))
suite.Require().Equal(uint64(0), db.GetNonce(addr2))
},
},
{
"success,GetBalance",
func(db *statedb.StateDB) {
db.AddBalance(addr2, big.NewInt(1))
suite.Require().Equal(big.NewInt(1), db.GetBalance(addr2))
},
},
{
"fail,GetBalance dbErr",
func(db *statedb.StateDB) {
suite.Require().Equal(big.NewInt(0), db.GetBalance(addrErr))
suite.Require().Error(db.Commit())
},
},
{
"success,change balance",
func(db *statedb.StateDB) {
db.AddBalance(addr2, big.NewInt(2))
suite.Require().Equal(big.NewInt(2), db.GetBalance(addr2))
db.SubBalance(addr2, big.NewInt(1))
suite.Require().Equal(big.NewInt(1), db.GetBalance(addr2))
suite.Require().NoError(db.Commit())
// create a clean StateDB, check the balance is committed
db = statedb.New(db.Context(), db.Keeper(), testTxConfig)
suite.Require().Equal(big.NewInt(1), db.GetBalance(addr2))
},
},
{
"success,SetState",
func(db *statedb.StateDB) {
key := common.BigToHash(big.NewInt(1))
value := common.BigToHash(big.NewInt(1))
suite.Require().Equal(common.Hash{}, db.GetState(addr2, key))
db.SetState(addr2, key, value)
suite.Require().Equal(value, db.GetState(addr2, key))
suite.Require().Equal(common.Hash{}, db.GetCommittedState(addr2, key))
},
},
{
"success,SetCode",
func(db *statedb.StateDB) {
code := []byte("hello world")
codeHash := crypto.Keccak256Hash(code)
db.SetCode(addr2, code)
suite.Require().Equal(code, db.GetCode(addr2))
suite.Require().Equal(codeHash, db.GetCodeHash(addr2))
suite.Require().NoError(db.Commit())
// create a clean StateDB, check the code is committed
db = statedb.New(db.Context(), db.Keeper(), testTxConfig)
suite.Require().Equal(code, db.GetCode(addr2))
suite.Require().Equal(codeHash, db.GetCodeHash(addr2))
},
},
{
"success,CreateAccount",
func(db *statedb.StateDB) {
// test balance carry over when overwritten
amount := big.NewInt(1)
code := []byte("hello world")
key := common.BigToHash(big.NewInt(1))
value := common.BigToHash(big.NewInt(1))
db.AddBalance(addr2, amount)
db.SetCode(addr2, code)
db.SetState(addr2, key, value)
rev := db.Snapshot()
db.CreateAccount(addr2)
suite.Require().Equal(amount, db.GetBalance(addr2))
suite.Require().Equal([]byte(nil), db.GetCode(addr2))
suite.Require().Equal(common.Hash{}, db.GetState(addr2, key))
db.RevertToSnapshot(rev)
suite.Require().Equal(amount, db.GetBalance(addr2))
suite.Require().Equal(code, db.GetCode(addr2))
suite.Require().Equal(value, db.GetState(addr2, key))
db.CreateAccount(addr2)
suite.Require().NoError(db.Commit())
db = statedb.New(db.Context(), db.Keeper(), testTxConfig)
suite.Require().Equal(amount, db.GetBalance(addr2))
suite.Require().Equal([]byte(nil), db.GetCode(addr2))
suite.Require().Equal(common.Hash{}, db.GetState(addr2, key))
},
},
{
"success,nested snapshot revert",
func(db *statedb.StateDB) {
key := common.BigToHash(big.NewInt(1))
value1 := common.BigToHash(big.NewInt(1))
value2 := common.BigToHash(big.NewInt(2))
rev1 := db.Snapshot()
db.SetState(addr2, key, value1)
rev2 := db.Snapshot()
db.SetState(addr2, key, value2)
suite.Require().Equal(value2, db.GetState(addr2, key))
db.RevertToSnapshot(rev2)
suite.Require().Equal(value1, db.GetState(addr2, key))
db.RevertToSnapshot(rev1)
suite.Require().Equal(common.Hash{}, db.GetState(addr2, key))
},
},
{
"success,nonce",
func(db *statedb.StateDB) {
suite.Require().Equal(uint64(0), db.GetNonce(addr2))
db.SetNonce(addr2, 1)
suite.Require().Equal(uint64(1), db.GetNonce(addr2))
suite.Require().NoError(db.Commit())
db = statedb.New(db.Context(), db.Keeper(), testTxConfig)
suite.Require().Equal(uint64(1), db.GetNonce(addr2))
},
},
{
"success,logs",
func(db *statedb.StateDB) {
data := []byte("hello world")
db.AddLog(&ethtypes.Log{
Address: addr2,
Topics: []common.Hash{},
Data: data,
BlockNumber: 1,
})
suite.Require().Equal(1, len(db.Logs()))
expecedLog := &ethtypes.Log{
Address: addr2,
Topics: []common.Hash{},
Data: data,
BlockNumber: 1,
BlockHash: common.BigToHash(big.NewInt(10)),
TxHash: common.BigToHash(big.NewInt(11)),
TxIndex: 1,
Index: 1,
}
suite.Require().Equal(expecedLog, db.Logs()[0])
rev := db.Snapshot()
db.AddLog(&ethtypes.Log{
Address: addr2,
Topics: []common.Hash{},
Data: data,
BlockNumber: 1,
})
suite.Require().Equal(2, len(db.Logs()))
suite.Require().Equal(uint(2), db.Logs()[1].Index)
db.RevertToSnapshot(rev)
suite.Require().Equal(1, len(db.Logs()))
},
},
{
"success,refund",
func(db *statedb.StateDB) {
db.AddRefund(uint64(10))
suite.Require().Equal(uint64(10), db.GetRefund())
rev := db.Snapshot()
db.SubRefund(uint64(5))
suite.Require().Equal(uint64(5), db.GetRefund())
db.RevertToSnapshot(rev)
suite.Require().Equal(uint64(10), db.GetRefund())
},
},
{
"success,empty",
func(db *statedb.StateDB) {
suite.Require().False(db.Exist(addr2))
suite.Require().True(db.Empty(addr2))
db.AddBalance(addr2, big.NewInt(1))
suite.Require().True(db.Exist(addr2))
suite.Require().False(db.Empty(addr2))
db.SubBalance(addr2, big.NewInt(1))
suite.Require().True(db.Exist(addr2))
suite.Require().True(db.Empty(addr2))
},
},
{
"success,suicide commit",
func(db *statedb.StateDB) {
code := []byte("hello world")
db.SetCode(addr2, code)
db.AddBalance(addr2, big.NewInt(1))
suite.Require().True(db.Exist(addr2))
suite.Require().False(db.Empty(addr2))
db.Suicide(addr2)
suite.Require().True(db.HasSuicided(addr2))
suite.Require().True(db.Exist(addr2))
suite.Require().Equal(new(big.Int), db.GetBalance(addr2))
suite.Require().NoError(db.Commit())
db = statedb.New(db.Context(), db.Keeper(), testTxConfig)
suite.Require().True(db.Empty(addr2))
},
},
{
"success,suicide revert",
func(db *statedb.StateDB) {
code := []byte("hello world")
db.SetCode(addr2, code)
db.AddBalance(addr2, big.NewInt(1))
rev := db.Snapshot()
db.Suicide(addr2)
suite.Require().True(db.HasSuicided(addr2))
db.RevertToSnapshot(rev)
suite.Require().False(db.HasSuicided(addr2))
suite.Require().Equal(code, db.GetCode(addr2))
suite.Require().Equal(big.NewInt(1), db.GetBalance(addr2))
},
},
// TODO access lisForEachStorage
// https://github.com/tharsis/ethermint/issues/876
}
for _, tc := range testCases {
suite.Run(tc.msg, func() {
db := statedb.New(
sdk.Context{},
NewMockKeeper(),
testTxConfig,
)
tc.test(db)
})
}
}
func TestStateDBTestSuite(t *testing.T) {
suite.Run(t, &StateDBTestSuite{})
}

20
x/evm/types/key.go
View File

@ -29,15 +29,9 @@ const (
// prefix bytes for the EVM transient store
const (
prefixTransientSuicided = iota + 1
prefixTransientBloom
prefixTransientBloom = iota + 1
prefixTransientTxIndex
prefixTransientRefund
prefixTransientAccessListAddress
prefixTransientAccessListSlot
prefixTransientTxHash
prefixTransientLogSize
prefixTransientTxLogs
)
// KVStore key prefixes
@ -48,15 +42,9 @@ var (
// Transient Store key prefixes
var (
KeyPrefixTransientSuicided = []byte{prefixTransientSuicided}
KeyPrefixTransientBloom = []byte{prefixTransientBloom}
KeyPrefixTransientTxIndex = []byte{prefixTransientTxIndex}
KeyPrefixTransientRefund = []byte{prefixTransientRefund}
KeyPrefixTransientAccessListAddress = []byte{prefixTransientAccessListAddress}
KeyPrefixTransientAccessListSlot = []byte{prefixTransientAccessListSlot}
KeyPrefixTransientTxHash = []byte{prefixTransientTxHash}
KeyPrefixTransientLogSize = []byte{prefixTransientLogSize}
KeyPrefixTransientTxLogs = []byte{prefixTransientTxLogs}
KeyPrefixTransientBloom = []byte{prefixTransientBloom}
KeyPrefixTransientTxIndex = []byte{prefixTransientTxIndex}
KeyPrefixTransientLogSize = []byte{prefixTransientLogSize}
)
// AddressStoragePrefix returns a prefix to iterate over a given account storage.

1
x/feemarket/keeper/keeper_test.go
View File

@ -90,7 +90,6 @@ func (suite *KeeperTestSuite) DoSetupTest(t require.TestingT) {
ConsensusHash: tmhash.Sum([]byte("consensus")),
LastResultsHash: tmhash.Sum([]byte("last_result")),
})
suite.app.EvmKeeper.WithContext(suite.ctx)
queryHelper := baseapp.NewQueryServerTestHelper(suite.ctx, suite.app.InterfaceRegistry())
types.RegisterQueryServer(queryHelper, suite.app.FeeMarketKeeper)