local c=c or {}


function c:onTouch()
    print "test in onTouch"
end

function handler(obj, method)
    return function(...)
        return method(obj, ...)
    end
end

print(handler(c,c.onTouch))
print(c.onTouch(c))

print(handler(c,c.onTouch))
print((function()c.onTouch(c)end))