github.hscsec.cn/scroll-tech/go-ethereum@v1.9.7/cmd/evm/compiler.go (about) 1 // Copyright 2017 The go-ethereum Authors 2 // This file is part of go-ethereum. 3 // 4 // go-ethereum is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU 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 // go-ethereum 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 General Public License for more details. 13 // 14 // You should have received a copy of the GNU General Public License 15 // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. 16 17 package main 18 19 import ( 20 "errors" 21 "fmt" 22 "io/ioutil" 23 24 "github.com/ethereum/go-ethereum/cmd/evm/internal/compiler" 25 26 cli "gopkg.in/urfave/cli.v1" 27 ) 28 29 var compileCommand = cli.Command{ 30 Action: compileCmd, 31 Name: "compile", 32 Usage: "compiles easm source to evm binary", 33 ArgsUsage: "<file>", 34 } 35 36 func compileCmd(ctx *cli.Context) error { 37 debug := ctx.GlobalBool(DebugFlag.Name) 38 39 if len(ctx.Args().First()) == 0 { 40 return errors.New("filename required") 41 } 42 43 fn := ctx.Args().First() 44 src, err := ioutil.ReadFile(fn) 45 if err != nil { 46 return err 47 } 48 49 bin, err := compiler.Compile(fn, src, debug) 50 if err != nil { 51 return err 52 } 53 fmt.Println(bin) 54 return nil 55 }