Fix LazyItemsDict.update() to create new _SingletonWrapper instances that

reference self. (trunk r12772)

svn path=/main/branches/2.1.6/; revision=13016

diff --git a/pym/portage/util.py b/pym/portage/util.py
index bc181ba3799de794255b6a9f631925fb7eaa7adb..98a01c791cb5cc31718b59b6fb121cc28bbadcb5 100644 (file)
--- a/pym/portage/util.py
+++ b/pym/portage/util.py
@@ -1082,8 +1082,8 @@ class LazyItemsDict(dict):
                """This is like addLazyItem except value_callable will only be called
                a maximum of 1 time and the result will be cached for future requests."""
                self.addLazyItem(item_key,
-                       self._SingletonWrapper(self, item_key, value_callable,
-                               *pargs, **kwargs))
+                       self._SingletonWrapper(self, item_key, value_callable),
+                               *pargs, **kwargs)
 
        def update(self, *args, **kwargs):
                if len(args) > 1:
@@ -1102,7 +1102,12 @@ class LazyItemsDict(dict):
                                        dict.__setitem__(self, k, None)
                                else:
                                        dict.__setitem__(self, k, map_obj[k])
-                       self.lazy_items.update(map_obj.lazy_items)
+                       for k, v in map_obj.lazy_items.iteritems():
+                               if isinstance(v[0], self._SingletonWrapper):
+                                       # Create a new wrapper that references self.
+                                       v = (self._SingletonWrapper(self, k, v[0]._callable),
+                                               v[1], v[2])
+                               self.lazy_items[k] = v
                else:
                        dict.update(self, map_obj)
                if kwargs:
@@ -1182,17 +1187,15 @@ class LazyItemsDict(dict):
 
        class _SingletonWrapper(object):
 
-               __slots__ = ('_parent', '_key', '_callable', '_pargs', '_kwargs')
+               __slots__ = ('_parent', '_key', '_callable')
 
-               def __init__(self, parent, key, value_callable, *pargs, **kwargs):
+               def __init__(self, parent, key, value_callable):
                        self._parent = parent
                        self._key = key
                        self._callable = value_callable
-                       self._pargs = pargs
-                       self._kwargs = kwargs
 
-               def __call__(self):
-                       value = self._callable(*self._pargs, **self._kwargs)
+               def __call__(self, *pargs, **kwargs):
+                       value = self._callable(*pargs, **kwargs)
                        self._parent[self._key] = value
                        return value