github.com/igggame/nebulas-go@v2.1.0+incompatible/nf/nvm/engine.go (about) 1 // Copyright (C) 2017 go-nebulas authors 2 // 3 // This file is part of the go-nebulas library. 4 // 5 // the go-nebulas library is free software: you can redistribute it and/or modify 6 // it under the terms of the GNU General Public License as published by 7 // the Free Software Foundation, either version 3 of the License, or 8 // (at your option) any later version. 9 // 10 // the go-nebulas library is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU General Public License for more details. 14 // 15 // You should have received a copy of the GNU General Public License 16 // along with the go-nebulas library. If not, see <http://www.gnu.org/licenses/>. 17 // 18 19 package nvm 20 21 import ( 22 "github.com/nebulasio/go-nebulas/core" 23 "github.com/nebulasio/go-nebulas/core/state" 24 ) 25 26 // NebulasVM type of NebulasVM 27 type NebulasVM struct{} 28 29 // NewNebulasVM create new NebulasVM 30 func NewNebulasVM() core.NVM { 31 return &NebulasVM{} 32 } 33 34 // CreateEngine start engine 35 func (nvm *NebulasVM) CreateEngine(block *core.Block, tx *core.Transaction, contract state.Account, state core.WorldState) (core.SmartContractEngine, error) { 36 ctx, err := NewContext(block, tx, contract, state) 37 if err != nil { 38 return nil, err 39 } 40 return NewV8Engine(ctx), nil 41 } 42 43 // CheckV8Run to check V8 env is OK 44 func (nvm *NebulasVM) CheckV8Run() error { 45 engine := NewV8Engine(&Context{ 46 block: core.MockBlock(nil, 1), 47 contract: state.MockAccount("1.0.0"), 48 tx: nil, 49 state: nil, 50 }) 51 _, err := engine.RunScriptSource("", 0) 52 engine.Dispose() 53 return err 54 }