# File lib/brakeman/processors/gem_processor.rb, line 32
  def process_call exp
    if exp.target == nil
      if exp.method == :gem
        gem_name = exp.first_arg
        return exp unless string? gem_name

        gem_version = exp.second_arg

        version = if string? gem_version
                    gem_version.value
                  else
                    nil
                  end

        @tracker.config.add_gem gem_name.value, version, @gemfile, exp.line
      elsif exp.method == :ruby
        version = exp.first_arg
        if string? version
          @tracker.config.set_ruby_version version.value
        end
      end
    elsif @inside_gemspec and exp.method == :add_dependency
      if string? exp.first_arg and string? exp.last_arg
        @tracker.config.add_gem exp.first_arg.value, exp.last_arg.value, @gemspec, exp.line
      end
    end

    exp
  end