# File lib/rake.rb, line 270 270: def [](task_name) 271: task_name = task_name.to_s 272: if task = TASKS[task_name] 273: return task 274: end 275: if task = enhance_with_matching_rule(task_name) 276: return task 277: end 278: if File.exist?(task_name) 279: return Rake::FileTask.define_task(task_name) 280: end 281: fail "Don't know how to build task '#{task_name}'" 282: end