##
# The NameSpace class will lookup task names in the scope defined by a
# +namespace+ command.

class Rake::NameSpace

  ##
  # Create a namespace lookup object using the given task manager
  # and the list of scopes.

  def initialize(task_manager, scope_list)
    @task_manager = task_manager
    @scope = scope_list.dup
  end

  ##
  # Lookup a task named +name+ in the namespace.

  def [](name)
    @task_manager.lookup(name, @scope)
  end

  ##
  # The scope of the namespace (a LinkedList)

  def scope
    @scope.dup
  end

  ##
  # Return the list of tasks defined in this and nested namespaces.

  def tasks
    @task_manager.tasks_in_scope(@scope)
  end

end