Question

我正在尝试使用Transcrypt为XGL（https://www.xalys.com）创建Python绑定。

从Python方面，我发现您可以继承和扩展JavaScript对象，执行所需的操作，然后将它们传递回JavaScript库。

类似于在https://github.com/doconix/pyreact/blob/master/src/scripts/pyreact.py处找到的React绑定，我这样做：

class ComponentMeta(type):        
  def __new__ (meta, name, bases, attribs):
    cls = type.__new__ (meta, name, bases, attribs)
    descrip = Object.getOwnPropertyDescriptor(cls, 'name')
    descrip.value = name
    Object.defineProperty(cls, 'name', descrip)
    return cls

class AbstractComponent(object, metaclass=ComponentMeta):
  def __init__(self, props):
    object.__init__(self)

class MyClass(AbstractComponent, MyJsClass.prototype):
  def __init__(self, a, b):
    AbstractComponent.__init__(self)
    MyJsClass.apply(self, [ a, b ])
  def doSomething(self):
    # Calling js method doSomething
    MyJsClass.prototype.doSomething.call(self)
  def doSomethingElse(self, myObject: MyClass):
    # Calling js method doSomethingElse
    MyJsClass.prototype.doSomethingElse.call(self, myObject)
  def doSomethingElse(self) -> MyClass:
    # Calling js method giveMeAnotherInstance, returns a new instance of MyJsClass
    return MyJsClass.prototype.giveMeAnotherInstance.call(self)        

myObject = MyClass(1, 2)
mySecondObject = MyClass(2, 3)
# Call a js method
myObject.doSomething()
# Call another js method with a Python Object (but valid Javascript Object)
myObject.doSomethingElse(mySecondObject)
# Get a new instance
myThirdObject:MyClass = myObject.giveMeAnotherInstance()

type(myThirdObject) is MyClass # returns false

如何将对象myThirdObject转换为有效的MyClass对象？

在Java（带有GWT）和C＃（带有Bridge.Net）中，在语言和JavaScript之间来回切换非常容易，我是否会错过Transcrypt的某些功能？

我尝试过：

  def doSomethingElse(self) -> MyClass:
    # Calling js method giveMeAnotherInstance, returns a new instance of MyJsClass
    return dict(MyJsClass.prototype.giveMeAnotherInstance.call(self))

但这不起作用...

转加密：将JavaScript对象转换为Python对象

0 个答案: