class Point

	var _x as int
	var _y as int
	
	cue init
		.init(0, 0)
		
	cue init(x as int, y as int)
		base.init
		_x = x
		_y = y

	def setXY(x as int, y as int)
		_x = x
		_y = y

	pro sum as int
		get
			return _x + _y
		set
			if value%2
				# odd
				_x = value // 2
				_y = _x + 1
			else
				# even
				_x = _y = value // 2
			#assert Sum==value  TODO

	def equals(x as int, y as int) as bool
		return _x==x and _y==y

	def main is shared
		p1 as Point = Point()
		p2 as Point = Point(3, 4)
		p1.setXY(1, 2)
		assert p1.sum==3
		p1.sum = 10
		assert p1.equals(5, 5)
		p2.setXY(1, 2)


class Person

    var _name as String

    cue init(name as String)
        base.init
        _name = name

	pro name as String
		"""
		a blank line after a doc string for a property
		"""
		
		get
			return _name
		set
			_name = value.trim