Commit Graph

105 Commits

Author SHA1 Message Date
Gregory P. Smith dd96db63f6 This reverts r63675 based on the discussion in this thread:
http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
2008-06-09 04:58:54 +00:00
Christian Heimes 593daf545b Renamed PyString to PyBytes 2008-05-26 12:51:38 +00:00
Christian Heimes 3b718a79af Implemented Martin's suggestion to clear the free lists during the garbage collection of the highest generation. 2008-02-14 12:47:33 +00:00
Christian Heimes 5b970ad483 Unified naming convention for free lists and their limits. All free lists
in Object/ are named ``free_list``, the counter ``numfree`` and the upper
limit is a macro ``PyName_MAXFREELIST`` inside an #ifndef block.

The chances should make it easier to adjust Python for platforms with
less memory, e.g. mobile phones.
2008-02-06 13:33:44 +00:00
Christian Heimes e93237dfcc #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. 2007-12-19 02:37:44 +00:00
Martin v. Löwis 6819210b9e PEP 3123: Provide forward compatibility with Python 3.0, while keeping
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
2007-07-21 06:55:02 +00:00
Brett Cannon f64c90052f Silence a compiler warning about incompatible pointer types. 2007-04-19 03:44:17 +00:00
Kristján Valur Jónsson 2f2f57916c Fix a bug when using the __lltrace__ opcode tracer, and a problem sith signed chars in frameobject.c which can occur with opcodes > 127 2007-04-13 22:07:33 +00:00
Jeremy Hylton 18623e2525 tabify 2007-02-27 16:00:06 +00:00
Jeremy Hylton a892554781 Fix assertion. 2007-02-26 19:00:20 +00:00
Jeremy Hylton 759410b372 Do not copy free variables to locals in class namespaces.
Fixes bug 1569356, but at the cost of a minor incompatibility in
locals().  Add test that verifies that the class namespace is not
polluted.  Also clarify the behavior in the library docs.

Along the way, cleaned up the dict_to_map and map_to_dict
implementations and added some comments that explain what they do.
2007-02-26 18:41:18 +00:00
Neal Norwitz 1adbb50701 Move the initialization of some pointers earlier. The problem is
that if we call Py_DECREF(frame) like we do if allocating locals fails,
frame_dealloc() will try to use these bogus values and crash.
2006-07-21 05:31:02 +00:00
Neal Norwitz b9845e72f9 Get rid of f_restricted too. Doc the other 4 ints that were already removed
at the NeedForSpeed sprint.
2006-06-12 02:11:18 +00:00
Neal Norwitz 7d5b6e8991 f_code can't be NULL based on Frame_New and other code that derefs it.
So there doesn't seem to be much point to checking here.
2006-06-11 05:48:14 +00:00
Richard Jones a372711fcc fix broken merge 2006-05-23 18:32:11 +00:00
Richard Jones cebbefc98d Applied patch 1337051 by Neal Norwitz, saving 4 ints on frame objects. 2006-05-23 18:28:17 +00:00
Richard Jones 7c88dcc5ab Merge from rjones-funccall branch.
Applied patch zombie-frames-2.diff from sf patch 876206 with updates for
Python 2.5 and also modified to retain the free_list to avoid the 67%
slow-down in pybench recursion test. 5% speed up in function call pybench.
2006-05-23 10:37:38 +00:00
Tim Peters adcd25e7fa frame_clear(): Explain why it's important to make the frame
look dead right at the start.  Use Py_CLEAR for four more
frame members.
2006-04-15 03:30:08 +00:00
Tim Peters de2acf6512 frame_traverse(): Use the standard Py_VISIT macro.
Py_VISIT:  cast the `op` argument to PyObject* when calling
`visit()`.  Else the caller has to pay too much attention to
this silly detail (e.g., frame_traverse needs to traverse
`struct _frame *` and `PyCodeObject *` pointers too).
2006-04-15 03:22:46 +00:00
Tim Peters a13131cf7f Trimmed trailing whitespace. 2006-04-15 03:15:24 +00:00
Phillip J. Eby 8ebb28df3a Fix SF#1470508: crash in generator cycle finalization. There were two
problems: first, PyGen_NeedsFinalizing() had an off-by-one bug that
prevented it from ever saying a generator didn't need finalizing, and
second, frame objects cleared themselves in a way that caused their
owning generator to think they were still executable, causing a double
deallocation of objects on the value stack if there was still a loop
on the block stack.  This revision also removes some unnecessary
close() operations from test_generators that are now appropriately
handled by the cycle collector.
2006-04-15 01:02:17 +00:00
Neal Norwitz 2aa9a5dfdd Use macro versions instead of function versions when we already know the type.
This will hopefully get rid of some Coverity warnings, be a hint to
developers, and be marginally faster.

Some asserts were added when the type is currently known, but depends
on values from another function.
2006-03-20 01:53:23 +00:00
Martin v. Löwis 18e165558b Merge ssize_t branch. 2006-02-15 17:27:45 +00:00
Jeremy Hylton ec97a28b60 Fix a bunch of imports to use code.h instead of compile.h.
Remove duplicate declarations from compile.h
2005-10-21 14:58:06 +00:00
Jeremy Hylton 3e0055f8c6 Merge ast-branch to head
This change implements a new bytecode compiler, based on a
transformation of the parse tree to an abstract syntax defined in
Parser/Python.asdl.

The compiler implementation is not complete, but it is in stable
enough shape to run the entire test suite excepting two disabled
tests.
2005-10-20 19:59:25 +00:00
Raymond Hettinger 214b1c3aae SF Bug #215126: Over restricted type checking on eval() function
The builtin eval() function now accepts any mapping for the locals argument.
Time sensitive steps guarded by PyDict_CheckExact() to keep from slowing
down the normal case.  My timings so no measurable impact.
2004-07-02 06:41:07 +00:00
Armin Rigo 75be012cba memset() with small memory sizes just kill us. 2004-03-20 21:10:27 +00:00
Armin Rigo 76beca957f Two forgotten Py_DECREF() for two out-of-memory conditions. 2004-01-27 16:08:07 +00:00
Jeremy Hylton e4b9d8c2ba Removing bogus Py_DECREF() reported by Armin Rigo (SF bug 812353).
Even if a new dict is generated for locals, it is stored in
f->f_locals.
2003-10-21 18:14:20 +00:00
Jeremy Hylton 174d276d8c Fix indentation. 2003-10-21 18:10:28 +00:00
Michael W. Hudson bdc6ea1110 Fix silly typo in comment. 2003-08-11 16:14:06 +00:00
Jeremy Hylton bd5cbf866f Refactor the logic for setting f_builtins.
For the case where the current globals match the previous frame's
globals, eliminates three tests in two if statements.  For the case
where we just get __builtins__ from a module, eliminate a couple of
tests.
2003-02-05 22:39:29 +00:00
Neal Norwitz b2501f4cd1 Since the *_Init() are private, prefix with _, suggested by Skip 2002-12-31 03:42:13 +00:00
Neal Norwitz c91ed400e0 SF #561244, Micro optimizations
Initialize the small integers and __builtins__ in startup.
This removes some if conditions.
Change XDECREF to DECREF for values which shouldn't be NULL.
2002-12-30 22:29:22 +00:00
Neal Norwitz ee65e22646 Fix bug introduced by SF patch #643835, Set Next Statement for Python debuggers
blockstack_top could be 0 when blockstack[blockstack_top-1]
was referenced (ie blockstack[-1]) which crashed on hpux.
Patch & fix by Richie Hindle
2002-12-19 18:16:57 +00:00
Neal Norwitz 91787cb4b3 Undefine MIN and MAX before defining
Some systems (HPUX at least) already define MIN/MAX for us
2002-12-18 23:33:35 +00:00
Michael W. Hudson cfd3884882 This is Richie Hindle's patch
[ 643835 ] Set Next Statement for Python debuggers

with a few tweaks by me: adding an unsigned or two, mentioning that
not all jumps are allowed in the doc for pdb, adding a NEWS item and
a note to whatsnew, and AuCTeX doing something cosmetic to libpdb.tex.
2002-12-17 16:15:34 +00:00
Michael W. Hudson 02ff6a9952 A slight change to SET_LINENO-less tracing.
This makes things a touch more like 2.2.  Read the comments in
Python/ceval.c for more details.
2002-09-11 15:36:32 +00:00
Neal Norwitz d94c28e467 SF #561244: micro optimizations, builtins cannot be NULL, so use Py_INCREF 2002-08-29 20:25:46 +00:00
Michael W. Hudson 69734a5272 Check in my ultra-shortlived patch #597220.
Move some debugging checks inside Py_DEBUG.

They were causing cache misses according to cachegrind.
2002-08-19 16:54:08 +00:00
Michael W. Hudson dd32a91cc0 This is my patch
[ 587993 ] SET_LINENO killer

Remove SET_LINENO.  Tracing is now supported by inspecting co_lnotab.

Many sundry changes to document and adapt to this change.
2002-08-15 14:59:02 +00:00
Guido van Rossum f4be427c46 Tim found that once test_longexp has run, test_sort takes very much
longer to run than normal.  A profiler run showed that this was due to
PyFrame_New() taking up an unreasonable amount of time.  A little
thinking showed that this was due to the while loop clearing the space
available for the stack.  The solution is to only clear the local
variables (and cells and free variables), not the space available for
the stack, since anything beyond the stack top is considered to be
garbage anyway.  Also, use memset() instead of a while loop counting
backwards.  This should be a time savings for normal code too!  (By a
probably unmeasurable amount. :-)
2002-08-01 18:50:33 +00:00
Jeremy Hylton 24ea8d3d9c Fix SF bug #505315: Make free and cell vars show up consistently in locals().
PyFrame_FastToLocals() and PyFrame_LocalsToFast() had a return if
f_nlocals was 0.  I think this was a holdover from the pre 2.1 days
when regular locals were the only kind of local variables.

The change makes it possible to use a free variable in eval or exec if
it the variable is also used elsewhere in the same block, which is
what the documentation says.
2002-04-20 04:46:55 +00:00
Tim Peters b7ba743312 SF bug 543148: Memory leak with stackframes + inspect.
Put a bound on the number of frameobjects that can live in the
frameobject free_list.

Am also backporting to 2.2.  I don't intend to backport to 2.1 (too
much work -- lots of cyclic structures leak there, and the GC API).
2002-04-13 05:21:47 +00:00
Guido van Rossum ff413af605 This is Neil's fix for SF bug 535905 (Evil Trashcan and GC interaction).
The fix makes it possible to call PyObject_GC_UnTrack() more than once
on the same object, and then move the PyObject_GC_UnTrack() call to
*before* the trashcan code is invoked.

BUGFIX CANDIDATE!
2002-03-28 20:34:59 +00:00
Jeremy Hylton 1a48ca8c53 Fix memory leak in dict_to_map(), SF bug [ #485152 ] memory leak in test_scope.
PyCell_Set() incremenets the reference count, so the earlier XINCREF
causes a leak.

Also make a number of small performance improvements to the code on
the assumption that most of the time variables are not rebound across
a FastToLocals() / LocalsToFast() pair.

Replace uses of PyCell_Set() and PyCell_Get() with PyCell_SET() and
PyCell_GET(), since the frame is guaranteed to contain cells.
2001-12-06 15:48:16 +00:00
Guido van Rossum 32d34c809f Add optional docstrings to getset descriptors. Fortunately, there's
no backwards compatibility to worry about, so I just pushed the
'closure' struct member to the back -- it's never used in the current
code base (I may eliminate it, but that's more work because the getter
and setter signatures would have to change.)

As examples, I added actual docstrings to the getset attributes of a
few types: file.closed, xxsubtype.spamdict.state.
2001-09-20 21:45:26 +00:00
Guido van Rossum 6f7993765a Add optional docstrings to member descriptors. For backwards
compatibility, this required all places where an array of "struct
memberlist" structures was declared that is referenced from a type's
tp_members slot to change the type of the structure to PyMemberDef;
"struct memberlist" is now only used by old code that still calls
PyMember_Get/Set.  The code in PyObject_GenericGetAttr/SetAttr now
calls the new APIs PyMember_GetOne/SetOne, which take a PyMemberDef
argument.

As examples, I added actual docstrings to the attributes of a few
types: file, complex, instance method, super, and xxsubtype.spamlist.

Also converted the symtable to new style getattr.
2001-09-20 20:46:19 +00:00
Tim Peters deb77e8394 Squash new compiler wng in debug build. 2001-08-30 00:32:51 +00:00
Neil Schemenauer 4f4817fee8 Make frames a PyVarObject. Use new GC API. 2001-08-29 23:52:17 +00:00