mirror of https://github.com/poanetwork/quorum.git
103 lines
2.2 KiB
Go
103 lines
2.2 KiB
Go
// Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved.
|
|
//
|
|
// This library 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 2.1 of the License, or (at your option) any later version.
|
|
//
|
|
// This library 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 this library; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
// MA 02110-1301 USA
|
|
|
|
package ethrepl
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path"
|
|
|
|
"github.com/ethereum/go-ethereum/eth"
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
|
"github.com/ethereum/go-ethereum/javascript"
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
)
|
|
|
|
var repllogger = logger.NewLogger("REPL")
|
|
|
|
type Repl interface {
|
|
Start()
|
|
Stop()
|
|
}
|
|
|
|
type JSRepl struct {
|
|
re *javascript.JSRE
|
|
|
|
prompt string
|
|
|
|
history *os.File
|
|
|
|
running bool
|
|
}
|
|
|
|
func NewJSRepl(ethereum *eth.Ethereum) *JSRepl {
|
|
hist, err := os.OpenFile(path.Join(ethutil.Config.ExecPath, "history"), os.O_RDWR|os.O_CREATE, os.ModePerm)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
return &JSRepl{re: javascript.NewJSRE(ethereum), prompt: "> ", history: hist}
|
|
}
|
|
|
|
func (self *JSRepl) Start() {
|
|
if !self.running {
|
|
self.running = true
|
|
repllogger.Infoln("init JS Console")
|
|
reader := bufio.NewReader(self.history)
|
|
for {
|
|
line, err := reader.ReadString('\n')
|
|
if err != nil && err == io.EOF {
|
|
break
|
|
} else if err != nil {
|
|
fmt.Println("error reading history", err)
|
|
break
|
|
}
|
|
|
|
addHistory(line[:len(line)-1])
|
|
}
|
|
self.read()
|
|
}
|
|
}
|
|
|
|
func (self *JSRepl) Stop() {
|
|
if self.running {
|
|
self.running = false
|
|
self.re.Stop()
|
|
repllogger.Infoln("exit JS Console")
|
|
self.history.Close()
|
|
}
|
|
}
|
|
|
|
func (self *JSRepl) parseInput(code string) {
|
|
defer func() {
|
|
if r := recover(); r != nil {
|
|
fmt.Println("[native] error", r)
|
|
}
|
|
}()
|
|
|
|
value, err := self.re.Run(code)
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
return
|
|
}
|
|
|
|
self.PrintValue(value)
|
|
}
|