1660     """

  1660     """

  1661 

  1661 

  1662     def __init__(self, *paths):

  1662     def __init__(self, *paths):

  1663         self.paths = paths

  1663         self.paths = paths

  1664 

  1664 

  1665     def join(self, obj, fname):

  1668     def join(self, obj, fname):

  1666         """Used to compute the runtime path of a cached file.

  1669         """Used to compute the runtime path of a cached file.

  1667 

  1670 

  1668         Users should subclass filecache and provide their own version of this

  1671         Users should subclass filecache and provide their own version of this

  1669         function to call the appropriate join function on 'obj' (an instance

  1672         function to call the appropriate join function on 'obj' (an instance

  1688 

  1691 

  1689         if entry:

  1692         if entry:

  1690             if entry.changed():

  1693             if entry.changed():

  1691                 entry.obj = self.func(obj)

  1694                 entry.obj = self.func(obj)

  1692         else:

  1695         else:

  1694 

  1697 

  1695             # We stat -before- creating the object so our cache doesn't lie if

  1698             # We stat -before- creating the object so our cache doesn't lie if

  1696             # a writer modified between the time we read and stat

  1699             # a writer modified between the time we read and stat

  1697             entry = filecacheentry(paths, True)

  1700             entry = filecacheentry(paths, True)

  1698             entry.obj = self.func(obj)

  1701             entry.obj = self.func(obj)

  1707 

  1710 

  1708     def set(self, obj, value):

  1711     def set(self, obj, value):

  1709         if self.name not in obj._filecache:

  1712         if self.name not in obj._filecache:

  1710             # we add an entry for the missing value because X in __dict__

  1713             # we add an entry for the missing value because X in __dict__

  1711             # implies X in _filecache

  1714             # implies X in _filecache

  1713             ce = filecacheentry(paths, False)

  1716             ce = filecacheentry(paths, False)

  1714             obj._filecache[self.name] = ce

  1717             obj._filecache[self.name] = ce

  1715         else:

  1718         else:

  1716             ce = obj._filecache[self.name]

  1719             ce = obj._filecache[self.name]

  1717 

  1720