github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/cmd/evm/compiler.go (about)

     1  // This file is part of the go-sberex library. The go-sberex library is 
     2  // free software: you can redistribute it and/or modify it under the terms 
     3  // of the GNU Lesser General Public License as published by the Free 
     4  // Software Foundation, either version 3 of the License, or (at your option)
     5  // any later version.
     6  //
     7  // The go-sberex library is distributed in the hope that it will be useful, 
     8  // but WITHOUT ANY WARRANTY; without even the implied warranty of
     9  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 
    10  // General Public License <http://www.gnu.org/licenses/> for more details.
    11  
    12  package main
    13  
    14  import (
    15  	"errors"
    16  	"fmt"
    17  	"io/ioutil"
    18  
    19  	"github.com/Sberex/go-sberex/cmd/evm/internal/compiler"
    20  
    21  	cli "gopkg.in/urfave/cli.v1"
    22  )
    23  
    24  var compileCommand = cli.Command{
    25  	Action:    compileCmd,
    26  	Name:      "compile",
    27  	Usage:     "compiles easm source to evm binary",
    28  	ArgsUsage: "<file>",
    29  }
    30  
    31  func compileCmd(ctx *cli.Context) error {
    32  	debug := ctx.GlobalBool(DebugFlag.Name)
    33  
    34  	if len(ctx.Args().First()) == 0 {
    35  		return errors.New("filename required")
    36  	}
    37  
    38  	fn := ctx.Args().First()
    39  	src, err := ioutil.ReadFile(fn)
    40  	if err != nil {
    41  		return err
    42  	}
    43  
    44  	bin, err := compiler.Compile(fn, src, debug)
    45  	if err != nil {
    46  		return err
    47  	}
    48  	fmt.Println(bin)
    49  	return nil
    50  }