github.com/humaniq/go-ethereum@v1.6.8-0.20171225131628-061223a13848/core/vm/runtime/env.go (about) 1 // Copyright 2015 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 package runtime 18 19 import ( 20 "math/big" 21 22 "github.com/ethereum/go-ethereum/common" 23 "github.com/ethereum/go-ethereum/core" 24 "github.com/ethereum/go-ethereum/core/vm" 25 ) 26 27 func NewEnv(cfg *Config) *vm.EVM { 28 context := vm.Context{ 29 CanTransfer: core.CanTransfer, 30 Transfer: core.Transfer, 31 GetHash: func(uint64) common.Hash { return common.Hash{} }, 32 33 Origin: cfg.Origin, 34 Coinbase: cfg.Coinbase, 35 BlockNumber: cfg.BlockNumber, 36 Time: cfg.Time, 37 Difficulty: cfg.Difficulty, 38 GasLimit: new(big.Int).SetUint64(cfg.GasLimit), 39 GasPrice: cfg.GasPrice, 40 } 41 42 return vm.NewEVM(context, cfg.State, cfg.ChainConfig, cfg.EVMConfig) 43 }