# File lib/rake.rb, line 2023
2023:     def top_level
2024:       standard_exception_handling do
2025:         if options.show_tasks
2026:           display_tasks_and_comments
2027:         elsif options.show_prereqs
2028:           display_prerequisites
2029:         else
2030:           top_level_tasks.each { |task_name| invoke_task(task_name) }
2031:         end
2032:       end
2033:     end