Problem: evm transfer is not efficient

CHANGELOG.md

@@ -43,8 +43,12 @@ Ref: https://keepachangelog.com/en/1.0.0/
 - (feemarket) [#433](https://github.com/crypto-org-chain/ethermint/pull/433) Fix sdk int conversion panic with baseFee.
 * (rpc) [#434](https://github.com/crypto-org-chain/ethermint/pull/434) No need gasPrice when patch gasUsed for `eth_getTransactionReceipt`.
 * (rpc) [#439](https://github.com/crypto-org-chain/ethermint/pull/439), [#441](https://github.com/crypto-org-chain/ethermint/pull/441) Align trace response for failed tx with go-ethereum.
+
+### Improvements
+
 * (statedb) [#446](https://github.com/crypto-org-chain/ethermint/pull/446) Re-use the cache store implementation with sdk.
 * (evm) [#447](https://github.com/crypto-org-chain/ethermint/pull/447) Deduct fee through virtual bank transfer.
+* (evm) [#448](https://github.com/crypto-org-chain/ethermint/pull/448) Refactor the evm transfer to be more efficient.
 
 ### State Machine Breaking
 

go.mod

@@ -242,12 +242,12 @@ require (
 
 replace (
 	// release/v0.50.x
-	cosmossdk.io/store => github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20240402015425-ec314e8e2d07
+	cosmossdk.io/store => github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20240402064432-829c54275894
 	// use cosmos keyring
 	github.com/99designs/keyring => github.com/cosmos/keyring v1.2.0
 	github.com/cockroachdb/pebble => github.com/cockroachdb/pebble v0.0.0-20230209160836-829675f94811
 	// release/v0.50.x
-	github.com/cosmos/cosmos-sdk => github.com/crypto-org-chain/cosmos-sdk v0.46.0-beta2.0.20240402015425-ec314e8e2d07
+	github.com/cosmos/cosmos-sdk => github.com/crypto-org-chain/cosmos-sdk v0.46.0-beta2.0.20240402064432-829c54275894
 	github.com/ethereum/go-ethereum => github.com/crypto-org-chain/go-ethereum v1.10.20-0.20231207063621-43cf32d91c3e
 	// Fix upstream GHSA-h395-qcrw-5vmq vulnerability.
 	// TODO Remove it: https://github.com/cosmos/cosmos-sdk/issues/10409

go.sum

@@ -413,10 +413,10 @@ github.com/creachadair/tomledit v0.0.24 h1:5Xjr25R2esu1rKCbQEmjZYlrhFkDspoAbAKb6
 github.com/creachadair/tomledit v0.0.24/go.mod h1:9qHbShRWQzSCcn617cMzg4eab1vbLCOjOshAWSzWr8U=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
-github.com/crypto-org-chain/cosmos-sdk v0.46.0-beta2.0.20240402015425-ec314e8e2d07 h1:XVb9zfI9joZzroBIBiiopd1Un4hWf0Wq2/iLfWTpSY8=
-github.com/crypto-org-chain/cosmos-sdk v0.46.0-beta2.0.20240402015425-ec314e8e2d07/go.mod h1:nRk8EA8/fEG4zSme2i/Rq5z3k7TrlsHkOYhrY79hhD8=
-github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20240402015425-ec314e8e2d07 h1:LlaT9o3Fly1MGX4MRGa/UcwAQzl7tewjryyJ2xTV9jg=
-github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20240402015425-ec314e8e2d07/go.mod h1:lfuLI1f4o+0SGtlHQS4x5qsjRcZZfYqG8bp3k8hM0M8=
+github.com/crypto-org-chain/cosmos-sdk v0.46.0-beta2.0.20240402064432-829c54275894 h1:kzSBRO3fTg3Rys51eB0kxspOCECJheUrbDSPTn48lTI=
+github.com/crypto-org-chain/cosmos-sdk v0.46.0-beta2.0.20240402064432-829c54275894/go.mod h1:nRk8EA8/fEG4zSme2i/Rq5z3k7TrlsHkOYhrY79hhD8=
+github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20240402064432-829c54275894 h1:bMirI/jNhEVw5xJrg1+qnc74bR/J9EuJSxfdgGkjhuQ=
+github.com/crypto-org-chain/cosmos-sdk/store v0.0.0-20240402064432-829c54275894/go.mod h1:lfuLI1f4o+0SGtlHQS4x5qsjRcZZfYqG8bp3k8hM0M8=
 github.com/crypto-org-chain/go-ethereum v1.10.20-0.20231207063621-43cf32d91c3e h1:vnyepPQ/m25+19xcTuBUdRxmltZ/EjVWNqEjhg7Ummk=
 github.com/crypto-org-chain/go-ethereum v1.10.20-0.20231207063621-43cf32d91c3e/go.mod h1:+a8pUj1tOyJ2RinsNQD4326YS+leSoKGiG/uVVb0x6Y=
 github.com/danieljoos/wincred v1.2.0 h1:ozqKHaLK0W/ii4KVbbvluM91W2H3Sh0BncbUNPS7jLE=

gomod2nix.toml

@@ -41,7 +41,7 @@ schema = 3
     version = "v1.3.0"
     hash = "sha256-EEFK43Cr0g0ndhQhkIKher0FqV3mvkmE9z0sP7uVSHg="
   [mod."cosmossdk.io/store"]
-    version = "v0.0.0-20240402015425-ec314e8e2d07"
+    version = "v0.0.0-20240402064432-829c54275894"
     hash = "sha256-0yj6ToF5tiOsJ7B3sBS9lLLEDVrKJxi1tNlqRcWauDw="
     replaced = "github.com/crypto-org-chain/cosmos-sdk/store"
   [mod."cosmossdk.io/tools/confix"]
@@ -161,8 +161,8 @@ schema = 3
     version = "v1.0.0-beta.4"
     hash = "sha256-5Kn82nsZfiEtuwhhLZqmMxdAY1tX/Fi3HJ0/MEaRohw="
   [mod."github.com/cosmos/cosmos-sdk"]
-    version = "v0.46.0-beta2.0.20240402015425-ec314e8e2d07"
-    hash = "sha256-kp8xXSle0X8PW4uIHXmfkGHjj3y6KTpcbvW+oJHsLzI="
+    version = "v0.46.0-beta2.0.20240402064432-829c54275894"
+    hash = "sha256-6Kq/hlyQ4D3v6odGK40wliSfzlvz1J7CbbGs+Uma1js="
     replaced = "github.com/crypto-org-chain/cosmos-sdk"
   [mod."github.com/cosmos/go-bip39"]
     version = "v1.0.0"

x/evm/keeper/state_transition.go

@@ -55,7 +55,7 @@ func (k *Keeper) NewEVM(
 	zero := common.BigToHash(big.NewInt(0))
 	blockCtx := vm.BlockContext{
 		CanTransfer: core.CanTransfer,
-		Transfer:    core.Transfer,
+		Transfer:    statedb.Transfer,
 		GetHash:     k.GetHashFn(ctx),
 		Coinbase:    cfg.CoinBase,
 		GasLimit:    ethermint.BlockGasLimit(ctx),

x/evm/keeper/statedb.go

@@ -72,6 +72,10 @@ func (k *Keeper) ForEachStorage(ctx sdk.Context, addr common.Address, cb func(ke
 	}
 }
 
+func (k *Keeper) Transfer(ctx sdk.Context, sender, recipient sdk.AccAddress, coins sdk.Coins) error {
+	return k.bankKeeper.SendCoins(ctx, sender, recipient, coins)
+}
+
 func (k *Keeper) AddBalance(ctx sdk.Context, addr sdk.AccAddress, coins sdk.Coins) error {
 	if err := k.bankKeeper.MintCoins(ctx, types.ModuleName, coins); err != nil {
 		return err

x/evm/statedb/interfaces.go

@@ -27,6 +27,7 @@ import (
 type Keeper interface {
 	GetParams(sdk.Context) evmtypes.Params
 
+	Transfer(ctx sdk.Context, sender, recipient sdk.AccAddress, coins sdk.Coins) error
 	AddBalance(ctx sdk.Context, addr sdk.AccAddress, coins sdk.Coins) error
 	SubBalance(ctx sdk.Context, addr sdk.AccAddress, coins sdk.Coins) error
 	SetBalance(ctx sdk.Context, addr common.Address, amount *big.Int, denom string) error

x/evm/statedb/statedb.go

@@ -43,6 +43,10 @@ type revision struct {
 	journalIndex int
 }
 
+func Transfer(db vm.StateDB, sender, recipient common.Address, amount *big.Int) {
+	db.(*StateDB).Transfer(sender, recipient, amount)
+}
+
 var _ vm.StateDB = &StateDB{}
 
 // StateDB structs within the ethereum protocol are used to store anything
@@ -382,11 +386,33 @@ func (s *StateDB) Context() sdk.Context {
  * SETTERS
  */
 
+// Transfer from one account to another
+func (s *StateDB) Transfer(sender, recipient common.Address, amount *big.Int) {
+	if amount.Sign() == 0 {
+		return
+	}
+	if amount.Sign() < 0 {
+		panic("negative amount")
+	}
+
+	coins := sdk.NewCoins(sdk.NewCoin(s.evmDenom, sdkmath.NewIntFromBigIntMut(amount)))
+	senderAddr := sdk.AccAddress(sender.Bytes())
+	recipientAddr := sdk.AccAddress(recipient.Bytes())
+	if err := s.ExecuteNativeAction(common.Address{}, nil, func(ctx sdk.Context) error {
+		return s.keeper.Transfer(ctx, senderAddr, recipientAddr, coins)
+	}); err != nil {
+		s.err = err
+	}
+}
+
 // AddBalance adds amount to the account associated with addr.
 func (s *StateDB) AddBalance(addr common.Address, amount *big.Int) {
-	if amount.Sign() <= 0 {
+	if amount.Sign() == 0 {
 		return
 	}
+	if amount.Sign() < 0 {
+		panic("negative amount")
+	}
 	coins := sdk.Coins{sdk.NewCoin(s.evmDenom, sdkmath.NewIntFromBigInt(amount))}
 	if err := s.ExecuteNativeAction(common.Address{}, nil, func(ctx sdk.Context) error {
 		return s.keeper.AddBalance(ctx, sdk.AccAddress(addr.Bytes()), coins)
@@ -397,9 +423,12 @@ func (s *StateDB) AddBalance(addr common.Address, amount *big.Int) {
 
 // SubBalance subtracts amount from the account associated with addr.
 func (s *StateDB) SubBalance(addr common.Address, amount *big.Int) {
-	if amount.Sign() <= 0 {
+	if amount.Sign() == 0 {
 		return
 	}
+	if amount.Sign() < 0 {
+		panic("negative amount")
+	}
 	coins := sdk.Coins{sdk.NewCoin(s.evmDenom, sdkmath.NewIntFromBigInt(amount))}
 	if err := s.ExecuteNativeAction(common.Address{}, nil, func(ctx sdk.Context) error {
 		return s.keeper.SubBalance(ctx, sdk.AccAddress(addr.Bytes()), coins)
@@ -408,6 +437,7 @@ func (s *StateDB) SubBalance(addr common.Address, amount *big.Int) {
 	}
 }
 
+// SetBalance is called by state override
 func (s *StateDB) SetBalance(addr common.Address, amount *big.Int) {
 	if err := s.ExecuteNativeAction(common.Address{}, nil, func(ctx sdk.Context) error {
 		return s.keeper.SetBalance(ctx, addr, amount, s.evmDenom)

x/evm/statedb/statedb_test.go

@@ -193,6 +193,11 @@ func (suite *StateDBTestSuite) TestBalance() {
 		{"sub zero balance", func(db *statedb.StateDB) {
 			db.SubBalance(address, big.NewInt(0))
 		}, big.NewInt(0)},
+		{"transfer", func(db *statedb.StateDB) {
+			db.AddBalance(address, big.NewInt(10))
+			db.Transfer(address, address2, big.NewInt(10))
+			suite.Require().Equal(big.NewInt(10), db.GetBalance(address2))
+		}, big.NewInt(0)},
 	}
 
 	for _, tc := range testCases {