Properties ("Getters and Setters") about rapydscript HOT 4 CLOSED

property getter can be done by some trick

def property(f):
    def empty():pass
    ref = f('init')
    attr = f.name
    ref.prototype['_$'+attr] = ref.prototype[attr]
    ref.prototype.__defineSetter__(attr,empty)
    ref.prototype.__defineGetter__(attr,ref.prototype['_$'+attr])

class Test
    def __init__(self):
        self.data = [1,2,3,4,5]

    @property
    def __length__(self,init):
        if init:return ABC
        else: return len(self.data)


a = Test()
a.__length__        # output: 5

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I wish I had more time to look at this, will leave alone for now but would appreciate if someone else could look into tackling this to handle these in pythonic way. Another good alternative for creating these is defineProperty function:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty

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Implemented in my fork: kovidgoyal/rapydscript-ng@e9a6bd3

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Implemented in ES6 mode with standard ES6 syntax (this is closest to variant 1 described above):

class Element:
    def __init__(self, tag, attrib):
        self._children = []

    get length(self):
        return len(self._children)

Still on the fence about implementing the Python syntax. While this is not standard Python approach (doesn't look like Python community is fond of them: http://stackoverflow.com/questions/2627002/whats-the-pythonic-way-to-use-getters-and-setters), the get/set of ES6 seem to complement def better.

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