コード例 #1
0
ファイル: main.go プロジェクト: efaysal/etherapis
func main() {
	flag.Parse()

	if !*flag_underscore {
		underscore.Disable()
	}

	err := func() error {
		src, err := readSource(flag.Arg(0))
		if err != nil {
			return err
		}

		vm := otto.New()
		_, err = vm.Run(src)
		return err
	}()
	if err != nil {
		switch err := err.(type) {
		case *otto.Error:
			fmt.Print(err.String())
		default:
			fmt.Println(err)
		}
		os.Exit(64)
	}
}
コード例 #2
0
ファイル: tester.go プロジェクト: efaysal/etherapis
func test(filename string) error {
	script, err := ioutil.ReadFile(filename)
	if err != nil {
		return err
	}

	if !*flag_report {
		fmt.Fprintln(os.Stdout, filename, len(script))
	}

	parse := false
	option := target[filename]

	if option != "parse" {
		vm := otto.New()
		_, err = vm.Run(string(script))
		if err != nil {
			value := err.Error()
			switch {
			case match_ReferenceError_not_defined.MatchString(value):
			case match_TypeError_undefined.MatchString(value):
			case match_lookahead.MatchString(value):
			case match_backreference.MatchString(value):
			default:
				return err
			}
			parse = true
		}
	}

	if parse {
		_, err = parser.ParseFile(nil, filename, string(script), parser.IgnoreRegExpErrors)
		if err != nil {
			return err
		}
		target[filename] = "parse"
	}

	return nil
}
コード例 #3
0
ファイル: natspec.go プロジェクト: efaysal/etherapis
func NewWithDocs(infoDoc []byte, tx string, data string) (self *NatSpec, err error) {

	var contract contractInfo
	err = json.Unmarshal(infoDoc, &contract)
	if err != nil {
		return
	}

	self = &NatSpec{
		jsvm:       otto.New(),
		abiDocJson: []byte(contract.AbiDefinition),
		userDoc:    contract.UserDoc,
		tx:         tx,
		data:       data,
	}

	// load and require natspec js (but it is meant to be protected environment)
	_, err = self.jsvm.Run(natspecJS)
	if err != nil {
		return
	}
	_, err = self.jsvm.Run("var natspec = require('natspec');")
	return
}
コード例 #4
0
ファイル: jsre.go プロジェクト: efaysal/etherapis
// Exported functions always access the vm through the event queue. You can
// call the functions of the otto vm directly to circumvent the queue. These
// functions should be used if and only if running a routine that was already
// called from JS through an RPC call.
func (self *JSRE) runEventLoop() {
	vm := otto.New()
	registry := map[*jsTimer]*jsTimer{}
	ready := make(chan *jsTimer)

	newTimer := func(call otto.FunctionCall, interval bool) (*jsTimer, otto.Value) {
		delay, _ := call.Argument(1).ToInteger()
		if 0 >= delay {
			delay = 1
		}
		timer := &jsTimer{
			duration: time.Duration(delay) * time.Millisecond,
			call:     call,
			interval: interval,
		}
		registry[timer] = timer

		timer.timer = time.AfterFunc(timer.duration, func() {
			ready <- timer
		})

		value, err := call.Otto.ToValue(timer)
		if err != nil {
			panic(err)
		}
		return timer, value
	}

	setTimeout := func(call otto.FunctionCall) otto.Value {
		_, value := newTimer(call, false)
		return value
	}

	setInterval := func(call otto.FunctionCall) otto.Value {
		_, value := newTimer(call, true)
		return value
	}

	clearTimeout := func(call otto.FunctionCall) otto.Value {
		timer, _ := call.Argument(0).Export()
		if timer, ok := timer.(*jsTimer); ok {
			timer.timer.Stop()
			delete(registry, timer)
		}
		return otto.UndefinedValue()
	}
	vm.Set("_setTimeout", setTimeout)
	vm.Set("_setInterval", setInterval)
	vm.Run(`var setTimeout = function(args) {
		if (arguments.length < 1) {
			throw TypeError("Failed to execute 'setTimeout': 1 argument required, but only 0 present.");
		}
		return _setTimeout.apply(this, arguments);
	}`)
	vm.Run(`var setInterval = function(args) {
		if (arguments.length < 1) {
			throw TypeError("Failed to execute 'setInterval': 1 argument required, but only 0 present.");
		}
		return _setInterval.apply(this, arguments);
	}`)
	vm.Set("clearTimeout", clearTimeout)
	vm.Set("clearInterval", clearTimeout)

	var waitForCallbacks bool

loop:
	for {
		select {
		case timer := <-ready:
			// execute callback, remove/reschedule the timer
			var arguments []interface{}
			if len(timer.call.ArgumentList) > 2 {
				tmp := timer.call.ArgumentList[2:]
				arguments = make([]interface{}, 2+len(tmp))
				for i, value := range tmp {
					arguments[i+2] = value
				}
			} else {
				arguments = make([]interface{}, 1)
			}
			arguments[0] = timer.call.ArgumentList[0]
			_, err := vm.Call(`Function.call.call`, nil, arguments...)
			if err != nil {
				fmt.Println("js error:", err, arguments)
			}

			_, inreg := registry[timer] // when clearInterval is called from within the callback don't reset it
			if timer.interval && inreg {
				timer.timer.Reset(timer.duration)
			} else {
				delete(registry, timer)
				if waitForCallbacks && (len(registry) == 0) {
					break loop
				}
			}
		case req := <-self.evalQueue:
			// run the code, send the result back
			req.fn(vm)
			close(req.done)
			if waitForCallbacks && (len(registry) == 0) {
				break loop
			}
		case waitForCallbacks = <-self.stopEventLoop:
			if !waitForCallbacks || (len(registry) == 0) {
				break loop
			}
		}
	}

	for _, timer := range registry {
		timer.timer.Stop()
		delete(registry, timer)
	}

	self.loopWg.Done()
}