# File lib/brakeman/processors/controller_processor.rb, line 229
  def add_lambda_filter exp
    # Convert into regular block call
    e = exp.dup
    lambda_node = e.delete_at(3)
    result = Sexp.new(:iter, e).line(e.line)

    # Add block arguments
    if node_type? lambda_node[2], :args
      result << lambda_node[2].last
    else
      result << s(:args)
    end

    # Add block contents
    if sexp? lambda_node[3]
      result << lambda_node[3]
    end

    add_fake_filter result
  end