"""
Box variables can be underscored or not.
If so, they are protected (or in structs, private).
If not, they are public. 
"""

class A

	var _a as int


class B inherits A

	def foo
		_a = 1


class Z

	var x as int
	
	def foo
		print x  # .error. Cannot find "x". There is a member named ".x" with a similar name.


class Program

	def main
		a = A()
		a._a = 1   # .error. Cannot access protected "_a" in "a" whose type is "A"