env.go

	infoContext := vm.InfoContext{
		Origin:     common.HexToAddress(exeValues["caller"]),
		Parent:     common.HexToHash(envValues["previousHash"]),
		Coinbase:   common.HexToAddress(envValues["currentCoinbase"]),
		Number:     common.Big(envValues["currentNumber"]),
		Time:       common.Big(envValues["currentTimestamp"]),
		Difficulty: common.Big(envValues["currentDifficulty"]),
		GasLimit:   common.Big(envValues["currentGasLimit"]),
		GasPrice:   common.Big(exeValues["gasPrice"]),
	}

	var initialCall bool
	backend := core.Backend{
		GetHashFn: func(n uint64) common.Hash {
			return common.BytesToHash(crypto.Keccak256([]byte(big.NewInt(int64(n)).String())))
		},
		State: state,
	}
	canTransfer := func(address common.Address, amount *big.Int) bool {
		if skipTransfer {
			if initialCall {
				initialCall = false
				return true
			}
		}
		return backend.State.GetBalance(from).Cmp(balance) >= 0
	}
	env := vm.NewEnvironment(core.EVMCallContext{canTransfer}, infoContext, backend, ruleSet, vm.Config{})