# File lib/rake.rb, line 1733
1733:     def top_level
1734:       standard_exception_handling do
1735:         if options.show_tasks
1736:           display_tasks_and_comments
1737:         elsif options.show_prereqs
1738:           display_prerequisites
1739:         else
1740:           top_level_tasks.each { |task_name| self[task_name].invoke }
1741:         end
1742:       end
1743:     end