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11 changes: 10 additions & 1 deletion javalang/ast.py
Original file line number Diff line number Diff line change
Expand Up @@ -17,13 +17,22 @@ def __new__(mcs, name, bases, dict):
return type.__new__(mcs, name, bases, dict)


class Position:
def __init__(self):
self.start = None
self.end = None

def __repr__(self):
return '<Position start: '+str(self.start)+', end: '+str(self.end)+'>'


@six.add_metaclass(MetaNode)
class Node(object):
attrs = ()

def __init__(self, **kwargs):
values = kwargs.copy()

self.position = Position()
for attr_name in self.attrs:
value = values.pop(attr_name, None)
setattr(self, attr_name, value)
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