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Add getCodeContractBytecode

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This commit is contained in:
Mason Fischer 2020-05-13 17:18:56 -04:00
parent 0f77f8b8a0
commit cf7efffe92
2 changed files with 25 additions and 1 deletions
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9
core/vm/state_manager.go
View file

@ -20,6 +20,7 @@ var funcs = map[string]stateManagerFunction{
"setStorage(address,bytes32,bytes32)": setStorage,
"deployContract(address,bytes,bool,address)": deployContract,
"getOvmContractNonce(address)": getOvmContractNonce,
"getCodeContractBytecode(address)": getCodeContractBytecode,
"incrementOvmContractNonce(address)": incrementOvmContractNonce,
}
var methodIds map[[4]byte]stateManagerFunction
@ -60,6 +61,12 @@ func getStorage(evm *EVM, contract *Contract, input []byte) (ret []byte, err err
return val.Bytes(), nil
}
func getCodeContractBytecode(evm *EVM, contract *Contract, input []byte) (ret []byte, err error) {
address := common.BytesToAddress(input[4:36])
code := evm.StateDB.GetCode(address)
return code, nil
}
func getOvmContractNonce(evm *EVM, contract *Contract, input []byte) (ret []byte, err error) {
address := common.BytesToAddress(input[4:36])
b := make([]byte, 8)
@ -81,6 +88,6 @@ func deployContract(evm *EVM, contract *Contract, input []byte) (ret []byte, err
initCodeLength := binary.BigEndian.Uint32(input[160:164])
initCode := input[164 : 164+initCodeLength]
callerContractRef := &Contract{self: AccountRef(callerAddress)}
returnVal, _, _, _ := evm.OvmCreate(callerContractRef, address, initCode, 0, bigZero)
returnVal, _, _, err := evm.OvmCreate(callerContractRef, address, initCode, contract.Gas, bigZero)
return returnVal, nil
}

17
tests/ovm_test.go
View file

@ -98,6 +98,23 @@ func TestGetAndIncrementNonce(t *testing.T) {
}
}
func TestGetCodeContractBytecode(t *testing.T) {
state := newState()
initCode, _ := hex.DecodeString("6080604052348015600f57600080fd5b5060b28061001e6000396000f3fe6080604052348015600f57600080fd5b506004361060285760003560e01c80639b0b0fda14602d575b600080fd5b606060048036036040811015604157600080fd5b8101908080359060200190929190803590602001909291905050506062565b005b8060008084815260200190815260200160002081905550505056fea265627a7a7231582053ac32a8b70d1cf87fb4ebf5a538ea9d9e773351e6c8afbc4bf6a6c273187f4a64736f6c63430005110032")
rawStateManagerAbi, _ := ioutil.ReadFile("./StateManagerABI.json")
stateManagerAbi, _ := abi.JSON(strings.NewReader(string(rawStateManagerAbi)))
address := common.HexToAddress("9999999999999999999999999999999999999999")
callerAddress := common.HexToAddress("42")
deployContractCalldata, _ := stateManagerAbi.Pack("deployContract", address, initCode, true, callerAddress)
call(t, state, vm.StateManagerAddress, deployContractCalldata)
getCodeContractBytecodeCalldata, _ := stateManagerAbi.Pack("getCodeContractBytecode", address)
getCodeContractBytecodeReturnValue, _ := call(t, state, vm.StateManagerAddress, getCodeContractBytecodeCalldata)
expectedCreatedCode := common.FromHex("6080604052348015600f57600080fd5b506004361060285760003560e01c80639b0b0fda14602d575b600080fd5b606060048036036040811015604157600080fd5b8101908080359060200190929190803590602001909291905050506062565b005b8060008084815260200190815260200160002081905550505056fea265627a7a7231582053ac32a8b70d1cf87fb4ebf5a538ea9d9e773351e6c8afbc4bf6a6c273187f4a64736f6c63430005110032")
if !bytes.Equal(getCodeContractBytecodeReturnValue, expectedCreatedCode) {
t.Errorf("Expected %020x; got %020x", getCodeContractBytecodeReturnValue, expectedCreatedCode)
}
}
func makeUint256WithUint64(num uint64) []byte {
b := make([]byte, 8)
binary.BigEndian.PutUint64(b, num)