delta/cpython.git/Modules/_weakref.c, branch v2.5b2

Make weak references subclassable:

2004-07-02T18:57:45+00:00

- weakref.ref and weakref.ReferenceType will become aliases for each
  other

- weakref.ref will be a modern, new-style class with proper __new__
  and __init__ methods

- weakref.WeakValueDictionary will have a lighter memory footprint,
  using a new weakref.ref subclass to associate the key with the
  value, allowing us to have only a single object of overhead for each
  dictionary entry (currently, there are 3 objects of overhead per
  entry: a weakref to the value, a weakref to the dictionary, and a
  function object used as a weakref callback; the weakref to the
  dictionary could be avoided without this change)

- a new macro, PyWeakref_CheckRefExact(), will be added

- PyWeakref_CheckRef() will check for subclasses of weakref.ref

This closes SF patch #983019.

Fix ref(), proxy() docstrings, based on comments from David Abrahams.

2002-08-02T20:23:40+00:00

Excise DL_EXPORT/DL_IMPORT from Modules/*. Required adding a prototype

2002-08-02T02:27:13+00:00

for Py_Main().

Thanks to Kalle Svensson and Skip Montanaro for the patches.

Patch #568124: Add doc string macros.

2002-06-13T20:33:02+00:00

Convert the ref() and proxy() implementations to use the new

2001-10-23T21:12:47+00:00

PyArg_UnpackTuple() function (serves as an example and test case).

Adjust the _weakref module to use the public API for the weak reference

2001-10-05T22:00:24+00:00

objects.  This is now simply a shim to give weakref.py access to the
underlying implementation.

Use new GC API.

2001-08-29T23:54:21+00:00

Use METH_O where possible (two functions). This does not lead to real

2001-08-16T14:11:30+00:00

performance changes since the affected functions are not expected to be
used frequently, but reduces the volume of code.

Remove an obsolete comment and a "return" before fallig off the end of a

2001-05-03T16:05:46+00:00

void function.

cleanup_helper(): Make sure we invalidate all reference objects

2001-04-13T17:15:47+00:00

                   before calling any callbacks.  This is important
                   since the callback objects only look at themselves
                   to determine that they are invalide.  This change
                   avoids a segfault when callbacks use a different
                   reference to an object in the process of being
                   deallocated.

This fixes SF bug #415660.