diff --git a/core/vm/evm.go b/core/vm/evm.go index 36336d8cbd..3f3c3751f8 100644 --- a/core/vm/evm.go +++ b/core/vm/evm.go @@ -21,15 +21,12 @@ import ( "sync/atomic" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/params" "github.com/holiman/uint256" ) -// emptyCodeHash is used by create to ensure deployment is disallowed to already -// deployed contract addresses (relevant after the account abstraction). -var emptyCodeHash = crypto.Keccak256Hash(nil) - type ( // CanTransferFunc is the signature of a transfer guard function CanTransferFunc func(StateDB, common.Address, *big.Int) bool @@ -438,7 +435,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64, } // Ensure there's no existing contract already at the designated address contractHash := evm.StateDB.GetCodeHash(address) - if evm.StateDB.GetNonce(address) != 0 || (contractHash != (common.Hash{}) && contractHash != emptyCodeHash) { + if evm.StateDB.GetNonce(address) != 0 || (contractHash != (common.Hash{}) && contractHash != types.EmptyCodeHash) { return nil, common.Address{}, 0, ErrContractAddressCollision } // Create a new account on the state diff --git a/core/vm/instructions_test.go b/core/vm/instructions_test.go index 36886cb9ed..807073336d 100644 --- a/core/vm/instructions_test.go +++ b/core/vm/instructions_test.go @@ -725,7 +725,7 @@ func TestRandom(t *testing.T) { for _, tt := range []testcase{ {name: "empty hash", random: common.Hash{}}, {name: "1", random: common.Hash{0}}, - {name: "emptyCodeHash", random: emptyCodeHash}, + {name: "emptyCodeHash", random: types.EmptyCodeHash}, {name: "hash(0x010203)", random: crypto.Keccak256Hash([]byte{0x01, 0x02, 0x03})}, } { var (