class Rake::Scope

:nodoc: all

def path

Path for the scope. 
def path
  map(&:to_s).reverse.join(":")
end

def path_with_task_name(task_name)

Path for the scope + the named path. 
def path_with_task_name(task_name)
  "#{path}:#{task_name}"
end

def trim(n)

this trim beyond the toplevel scope.
Trim +n+ innermost scope levels from the scope. In no case will 
def trim(n)
  result = self
  while n > 0 && !result.empty?
    result = result.tail
    n -= 1
  end
  result
end