package main
import (
"fmt"
"github.com/ethereum/eth-go"
"github.com/ethereum/eth-go/ethpub"
"github.com/obscuren/otto"
)
type Repl interface {
Start()
Stop()
}
type JSRepl struct {
re *JSRE
prompt string
}
func NewJSRepl(ethereum *eth.Ethereum) *JSRepl {
return &JSRepl{re: NewJSRE(ethereum), prompt: "> "}
}
func (self *JSRepl) Start() {
self.read()
}
func (self *JSRepl) Stop() {
self.re.Stop()
}
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)
}
// The JSEthereum object attempts to wrap the PEthereum object and returns
// meaningful javascript objects
type JSBlock struct {
*ethpub.PBlock
eth *JSEthereum
}
func (self *JSBlock) GetTransaction(hash string) otto.Value {
return self.eth.toVal(self.PBlock.GetTransaction(hash))
}
type JSEthereum struct {
*ethpub.PEthereum
vm *otto.Otto
}
func (self *JSEthereum) GetBlock(hash string) otto.Value {
return self.toVal(&JSBlock{self.PEthereum.GetBlock(hash), self})
}
func (self *JSEthereum) GetKey() otto.Value {
return self.toVal(self.PEthereum.GetKey())
}
func (self *JSEthereum) GetStateObject(addr string) otto.Value {
return self.toVal(self.PEthereum.GetStateObject(addr))
}
func (self *JSEthereum) Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr string) otto.Value {
r, err := self.PEthereum.Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr)
if err != nil {
fmt.Println(err)
return otto.UndefinedValue()
}
return self.toVal(r)
}
func (self *JSEthereum) Create(key, valueStr, gasStr, gasPriceStr, scriptStr string) otto.Value {
r, err := self.PEthereum.Create(key, valueStr, gasStr, gasPriceStr, scriptStr)
if err != nil {
fmt.Println(err)
return otto.UndefinedValue()
}
return self.toVal(r)
}
func (self *JSEthereum) toVal(v interface{}) otto.Value {
result, err := self.vm.ToValue(v)
if err != nil {
fmt.Println(err)
return otto.UndefinedValue()
}
return result
}
