# File lib/rake.rb, line 514 514: def invoke_prerequisites(task_args, invocation_chain) 515: @prerequisites.each { |n| 516: prereq = application[n, @scope] 517: prereq_args = task_args.new_scope(prereq.arg_names) 518: prereq.invoke_with_call_chain(prereq_args, invocation_chain) 519: } 520: end