Kacha

kacha.py

from slimit.parser import Parser
from slimit.visitors import nodevisitor
from slimit import ast
from sets import Set

# create parser instance
parser = Parser()

# parse the javascript code
#tree = parser.parse('for(var i=0; i<10; i++) {var x=5+i;}')
tree = parser.parse('var s = 1; var t = {u:s,v:1}; t.w = t.w;')

# create set to store variables
variables = set()

#iterate through the tree to print the variable names
for node in nodevisitor.visit(tree):
    if isinstance(node, ast.Identifier):
        variables.add(node.value)

# print the variable names
for var in variables:
    print 'Var name: %s' % var