Author: Ronan Lamy <[email protected]>
Branch: online-transforms
Changeset: r74232:7530733a07f0
Date: 2014-10-25 18:04 +0200
http://bitbucket.org/pypy/pypy/changeset/7530733a07f0/
Log: Normalize methods and avoid using weakrefs in extregistry
diff --git a/rpython/rtyper/extregistry.py b/rpython/rtyper/extregistry.py
--- a/rpython/rtyper/extregistry.py
+++ b/rpython/rtyper/extregistry.py
@@ -1,6 +1,7 @@
import weakref
import UserDict
from rpython.tool.uid import Hashable
+from rpython.tool.descriptor import normalize_method
class AutoRegisteringType(type):
@@ -21,6 +22,10 @@
else:
if key in dict:
raise ValueError("duplicate extregistry entry %r" % (selfcls,))
+ try:
+ key = normalize_method(key)
+ except ValueError:
+ pass
dict[key] = selfcls
def _register_value(selfcls, key):
@@ -73,13 +78,10 @@
# ____________________________________________________________
-class FlexibleWeakDict(UserDict.DictMixin):
- """A WeakKeyDictionary that accepts more or less anything as keys:
- weakly referenceable objects or not, hashable objects or not.
- """
+class FlexibleDict(UserDict.DictMixin):
+ """A dictionary that accepts unhashable objects as keys"""
def __init__(self):
self._regdict = {}
- self._weakdict = weakref.WeakKeyDictionary()
self._iddict = {}
def ref(self, key):
@@ -87,12 +89,7 @@
hash(key)
except TypeError:
return self._iddict, Hashable(key) # key is not hashable
- try:
- weakref.ref(key)
- except TypeError:
- return self._regdict, key # key cannot be weakly ref'ed
- else:
- return self._weakdict, key # normal case
+ return self._regdict, key
def __getitem__(self, key):
d, key = self.ref(key)
@@ -108,11 +105,10 @@
def keys(self):
return (self._regdict.keys() +
- self._weakdict.keys() +
[hashable.value for hashable in self._iddict])
-EXT_REGISTRY_BY_VALUE = FlexibleWeakDict()
+EXT_REGISTRY_BY_VALUE = FlexibleDict()
EXT_REGISTRY_BY_TYPE = weakref.WeakKeyDictionary()
# ____________________________________________________________
@@ -135,6 +131,10 @@
return _lookup_type_cls(type(instance))
def lookup(instance):
+ try:
+ instance = normalize_method(instance)
+ except ValueError:
+ pass
Entry = _lookup_cls(instance)
return Entry(type(instance), instance)
diff --git a/rpython/rtyper/test/test_extregistry.py
b/rpython/rtyper/test/test_extregistry.py
--- a/rpython/rtyper/test/test_extregistry.py
+++ b/rpython/rtyper/test/test_extregistry.py
@@ -134,3 +134,17 @@
_about_ = n1
assert isinstance(extregistry.lookup(n1), Entry)
assert isinstance(extregistry.lookup(n2), Entry)
+
+def test_register_method_of_frozen():
+ class Frozen(object):
+ def _freeze_(self):
+ return True
+ def foo(self):
+ pass
+
+ f = Frozen()
+
+ class Entry(ExtRegistryEntry):
+ _about_ = f.foo
+
+ assert isinstance(extregistry.lookup(f.foo), Entry)
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