# File lib/rake/application.rb, line 625
625:     def collect_tasks
626:       @top_level_tasks = []
627:       ARGV.each do |arg|
628:         if arg =~ /^(\w+)=(.*)$/
629:           ENV[$1] = $2
630:         else
631:           @top_level_tasks << arg unless arg =~ /^-/
632:         end
633:       end
634:       @top_level_tasks.push("default") if @top_level_tasks.size == 0
635:     end