go-pulse/cmd/evm/internal/compiler/compiler.go
Jeffrey Wilcke 230cf2ec91 cmd/evm, core/asm: add EVM assembler (#3686)
The evm compile command implements a simple assembly language that compiles to
EVM bytecode.
2017-03-01 01:11:24 +01:00

40 lines
1.2 KiB
Go

// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package compiler
import (
"errors"
"fmt"
"github.com/ethereum/go-ethereum/core/asm"
)
func Compile(fn string, src []byte, debug bool) (string, error) {
compiler := asm.NewCompiler(debug)
compiler.Feed(asm.Lex(fn, src, debug))
bin, compileErrors := compiler.Compile()
if len(compileErrors) > 0 {
// report errors
for _, err := range compileErrors {
fmt.Printf("%s:%v\n", fn, err)
}
return "", errors.New("compiling failed")
}
return bin, nil
}