# File lib/bundler.rb, line 124
    def locked_gems
      return @locked_gems if defined?(@locked_gems)
      if Bundler.default_lockfile.exist?
        lock = Bundler.read_file(Bundler.default_lockfile)
        @locked_gems = LockfileParser.new(lock)
      else
        @locked_gems = nil
      end
    end