github.com/csquan/dpos-go-ethereum@v1.9.7/cmd/evm/internal/compiler/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 compiler
    18  
    19  import (
    20  	"errors"
    21  	"fmt"
    22  
    23  	"github.com/ethereum/go-ethereum/core/asm"
    24  )
    25  
    26  func Compile(fn string, src []byte, debug bool) (string, error) {
    27  	compiler := asm.NewCompiler(debug)
    28  	compiler.Feed(asm.Lex(src, debug))
    29  
    30  	bin, compileErrors := compiler.Compile()
    31  	if len(compileErrors) > 0 {
    32  		// report errors
    33  		for _, err := range compileErrors {
    34  			fmt.Printf("%s:%v\n", fn, err)
    35  		}
    36  		return "", errors.New("compiling failed")
    37  	}
    38  	return bin, nil
    39  }