# File lib/brakeman/util.rb, line 220
  def params? exp
    if exp.is_a? Sexp
      return true if exp.node_type == :params or ALL_PARAMETERS.include? exp

      if call? exp
        if params? exp[1]
          return true
        elsif exp[2] == :[]
          return params? exp[1]
        end
      end
    end

    false
  end