Binding::of_caller for Rubinius

binding_of_caller.rb

class Binding
  def self.of_caller
    bt = Rubinius::VM.backtrace(2, true).first

    Binding.setup(
      bt.variables,
      bt.variables.method,
      bt.static_scope
    )
  end
end

def f
  Binding.of_caller.eval('x')
end

x = 33
p f