Official Go implementation of the Ethereum protocol
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go-ethereum/ethereum/javascript_console.go

76 lines
1.2 KiB

package main
import (
"bufio"
"fmt"
"github.com/ethereum/eth-go"
"github.com/ethereum/eth-go/ethpub"
"github.com/robertkrimen/otto"
"os"
)
type JSConsole struct {
vm *otto.Otto
lib *ethpub.PEthereum
}
func NewJSConsole(ethereum *eth.Ethereum) *JSConsole {
return &JSConsole{vm: otto.New(), lib: ethpub.NewPEthereum(ethereum)}
}
func (self *JSConsole) Start() {
self.initBindings()
fmt.Println("Eth JS Console")
reader := bufio.NewReader(os.Stdin)
for {
fmt.Printf("eth >>> ")
str, _, err := reader.ReadLine()
if err != nil {
fmt.Println("Error reading input", err)
} else {
if string(str) == "quit" {
return
}
self.ParseInput(string(str))
}
}
}
func (self *JSConsole) ParseInput(code string) {
value, err := self.vm.Run(code)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(value)
}
type OtherStruct struct {
Test string
}
type JSWrapper struct {
pub *ethpub.PEthereum
vm *otto.Otto
}
func (self *JSWrapper) GetKey() otto.Value {
result, err := self.vm.ToValue(self.pub.GetKey())
if err != nil {
fmt.Println(err)
return otto.UndefinedValue()
}
return result
}
func (self *JSConsole) initBindings() {
t := &JSWrapper{self.lib, self.vm}
self.vm.Set("eth", t)
}