Commit Graph

1061 Commits

Author SHA1 Message Date
Anthony Baxter c2a5a63654 PEP-0318, @decorator-style. In Guido's words:
"@ seems the syntax that everybody can hate equally"
Implementation by Mark Russell, from SF #979728.
2004-08-02 06:10:11 +00:00
Neal Norwitz 4ecd8cd046 Fix typo in comment 2004-08-01 22:45:27 +00:00
Armin Rigo 93677f075d * drop the unreasonable list invariant that ob_item should never come back
to NULL during the lifetime of the object.

* listobject.c nevertheless did not conform to the other invariants,
  either; fixed.

* listobject.c now uses list_clear() as the obvious internal way to clear
  a list, instead of abusing list_ass_slice() for that.  It makes it easier
  to enforce the invariant about ob_item == NULL.

* listsort() sets allocated to -1 during sort; any mutation will set it
  to a value >= 0, so it is a safe way to detect mutation.  A negative
  value for allocated does not cause a problem elsewhere currently.
  test_sort.py has a new test for this fix.

* listsort() leak: if items were added to the list during the sort, AND if
  these items had a __del__ that puts still more stuff into the list,
  then this more stuff (and the PyObject** array to hold them) were
  overridden at the end of listsort() and never released.
2004-07-29 12:40:23 +00:00
Tim Peters 51b4ade306 Fix obscure breakage (relative to 2.3) in listsort: the test for list
mutation during list.sort() used to rely on that listobject.c always
NULL'ed ob_item when ob_size fell to 0.  That's no longer true, so the
test for list mutation during a sort is no longer reliable.  Changed the
test to rely instead on that listobject.c now never NULLs-out ob_item
after (if ever) ob_item gets a non-NULL value.  This new assumption is
also documented now, as a required invariant in listobject.h.

The new assumption allowed some real simplification to some of the
hairier code in listsort(), so is a Good Thing on that count.
2004-07-29 04:07:15 +00:00
Tim Peters a995a2dd54 Document what the members of PyListObject are used for, and the crucial
invariants they must satisfy.
2004-07-29 03:29:15 +00:00
Martin v. Löwis fe393f47c6 Use intptr_t/uintptr_t on Windows 2004-07-27 15:57:24 +00:00
Tim Peters 5980ff2d92 SF bug 994255: Py_RETURN_NONE causes too much warnings
Rewrote Py_RETURN_{NONE, TRUE, FALSE} to expand to comma expressions
rather than "do {} while(0)" thingies.  The OP complained because he
likes using MS /W4 sometimes, and then all his uses of these things
generate nuisance warnings about testing a constant expression (in
the "while(0)" part).  Comma expressions don't have this problem
(although it's a lucky accident that comma expressions suffice for these
macros!).
2004-07-22 01:46:43 +00:00
Nicholas Bastin 9ba301e589 Moved SunPro warning suppression into pyport.h and out of individual
modules and objects.
2004-07-15 15:54:05 +00:00
Jack Jansen 59f072ad7c Moved PyMac_GetScript() to _localemodule, which is the only place where
it is used, and made it private. Should fix #978662.
2004-07-15 13:31:39 +00:00
Tim Peters eda29306b3 Formalize that the Py_VISIT macro requires that the tp_traverse
implementation it's used in must give its arguments specific names.
2004-07-15 04:05:59 +00:00
Jim Fulton aa6389e13b Documented the new Py_VISIT macro to simplify implementation of
tp_traverse handlers. (Tim made me do it. ;)
2004-07-14 19:08:17 +00:00
Jim Fulton 8c5aeaa277 Implemented a new Py_CLEAR macro. This macro should be used when
decrementing the refcount of variables that might be accessed as a
result of calling Python
2004-07-14 19:07:35 +00:00
Brett Cannon 711e7d97e4 Add PyArg_VaParseTupleAndKeywords(). Document this function and
PyArg_VaParse().

Closes patch #550732.  Thanks Greg Chapman.
2004-07-10 22:20:32 +00:00
Anthony Baxter 7732ccb07c post-release fun 2004-07-09 07:19:21 +00:00
Marc-André Lemburg d2d4598ec2 Allow string and unicode return types from .encode()/.decode()
methods on string and unicode objects. Added unicode.decode()
which was missing for no apparent reason.
2004-07-08 17:57:32 +00:00
Fred Drake 0e43db5baa bump the version number for 2.4a1 2004-07-08 03:59:33 +00:00
Fred Drake 0a4dd390bf Make weak references subclassable:
- 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.
2004-07-02 18:57:45 +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
Brett Cannon 1ed5705154 Add missing backslash for PyDateTimeAPI->Delta_FromDelta() macro. 2004-06-28 00:48:30 +00:00
Martin v. Löwis ef82d2fdfe Patch #923098: Share interned strings in marshal. 2004-06-27 16:51:46 +00:00
Martin v. Löwis 8d97e33bb7 Patch #966493: Cleanup generator/eval_frame exposure. 2004-06-27 15:43:12 +00:00
Raymond Hettinger 9c18e81fb2 Install two code generation optimizations that depend on NOP.
Reduces the cost of "not" to almost zero.
2004-06-21 16:31:15 +00:00
Tim Peters 9ddf40b4e1 SF patch 876130: add C API to datetime module, from Anthony Tuininga.
The LaTeX is untested (well, so is the new API, for that matter).
Note that I also changed NULL to get spelled consistently in concrete.tex.
If that was a wrong thing to do, Fred should yell at me.
2004-06-20 22:41:32 +00:00
Tim Peters 1b6f7a9057 Bug 975996: Add _PyTime_DoubleToTimet to C API
New include file timefuncs.h exports private API function
_PyTime_DoubleToTimet() from timemodule.c.  timemodule should export
some other functions too (look for painful bits in datetimemodule.c).

Added insane-argument checking to datetime's assorted fromtimestamp()
and utcfromtimestamp() methods.  Added insane-argument tests of these
to test_datetime, and insane-argument tests for ctime(), localtime()
and gmtime() to test_time.
2004-06-20 02:50:16 +00:00
Martin v. Löwis 737ea82a5a Patch #774665: Make Python LC_NUMERIC agnostic. 2004-06-08 18:52:54 +00:00
Martin v. Löwis f30d60edbc Patch #510695: Add TSC profiling for the VM. 2004-06-08 08:17:44 +00:00
Hye-Shik Chang 974ed7cfa5 - SF #962502: Add two more methods for unicode type; width() and
iswide() for east asian width manipulation. (Inspired by David
Goodger, Reviewed by Martin v. Loewis)
- Move _PyUnicode_TypeRecord.flags to the end of the struct so that
no padding is added for UCS-4 builds. (Suggested by Martin v. Loewis)
2004-06-02 16:49:17 +00:00
Martin v. Löwis e440e47e91 Patch #957398: Add public API for Generator Object/Type. 2004-06-01 15:22:42 +00:00
Raymond Hettinger cb87bc8e7e Add weakref support to array.array and file objects. 2004-05-31 00:35:52 +00:00
Raymond Hettinger 691d80532b Make sets and deques weak referencable. 2004-05-30 07:26:47 +00:00
Raymond Hettinger 354433a59d SF patch #872326: Generator expression implementation
(Code contributed by Jiwon Seo.)

The documentation portion of the patch is being re-worked and will be
checked-in soon.  Likewise, PEP 289 will be updated to reflect Guido's
rationale for the design decisions on binding behavior (as described in
in his patch comments and in discussions on python-dev).

The test file, test_genexps.py, is written in doctest format and is
meant to exercise all aspects of the the patch.  Further additions are
welcome from everyone.  Please stress test this new feature as much as
possible before the alpha release.
2004-05-19 08:20:33 +00:00
Thomas Heller 1328b52c6f Two new public API functions, Py_IncRef and Py_DecRef. Useful for
dynamic embedders of Python.
2004-04-22 17:23:49 +00:00
Tim Peters 174175bf3a Added a comment about the unreferenced PyThreadState.tick_counter
member.
2004-03-29 02:24:26 +00:00
Nicholas Bastin c69ebe8d50 Enable the profiling of C functions (builtins and extensions) 2004-03-24 21:57:10 +00:00
Hye-Shik Chang 77d9a3effa Patch #871657: Set EDOM for `nan' return values on FreeBSD and OpenBSD.
This fixes a problem that math.sqrt(-1) doesn't raise math.error.
2004-03-22 08:43:55 +00:00
Nicholas Bastin a7604bf1b4 Moved tracebackobject to traceback.h, Closes SF Bug #497067 2004-03-21 18:37:23 +00:00
Skip Montanaro 6e098a15a3 compile.h and eval.h weren't being included which kept a fair bit of the
public API from being exposed by simply including Python.h (as recommended).
2004-03-13 23:11:44 +00:00
Raymond Hettinger 4eec95ad2a SF patch #906501: Fix typos in pystate.h comments
(Contributed by Greg Chapman.)
2004-03-13 20:45:47 +00:00
Raymond Hettinger 42bec93e5c Make PySequence_Fast_ITEMS public. (Thanks Skip.) 2004-03-12 16:38:17 +00:00
Raymond Hettinger c1e4f9dd92 Use a new macro, PySequence_Fast_ITEMS to factor out code common to
three recent optimizations.  Aside from reducing code volume, it
increases readability.
2004-03-12 08:04:00 +00:00
Raymond Hettinger 8ca92ae54c Eliminate a big block of duplicate code in PySequence_List() by
exposing _PyList_Extend().
2004-03-11 09:13:12 +00:00
Raymond Hettinger dd80f76265 SF patch #910929: Optimize list comprehensions
Add a new opcode, LIST_APPEND, and apply it to the code generation for
list comprehensions.  Reduces the per-loop overhead by about a third.
2004-03-07 07:31:06 +00:00
Raymond Hettinger 4bb9540dd6 * Optimized list appends and pops by making fewer calls the underlying system
realloc().  This is achieved by tracking the overallocation size in a new
  field and using that information to skip calls to realloc() whenever
  possible.

* Simplified and tightened the amount of overallocation.  For larger lists,
  this overallocates by 1/8th (compared to the previous scheme which ranged
  between 1/4th to 1/32nd over-allocation).  For smaller lists (n<6), the
  maximum overallocation is one byte (formerly it could be upto eight bytes).
  This saves memory in applications with large numbers of small lists.

* Eliminated the NRESIZE macro in favor of a new, static list_resize function
  that encapsulates the resizing logic.  Coverting this back to macro would
  give a small (under 1%) speed-up.  This was too small to warrant the loss
  of readability, maintainability, and de-coupling.

* Some functions using NRESIZE had grown unnecessarily complex in their
  efforts to bend to the macro's calling pattern.  With the new list_resize
  function in place, those other functions could be simplified.  That is
  being saved for a separate patch.

* The ob_item==NULL check could be eliminated from the new list_resize
  function.  This would entail finding each piece of code that sets ob_item
  to NULL and adding a new line to invalidate the overallocation tracking
  field.  Rather than impose a new requirement on other pieces of list code,
  it was preferred to leave the NULL check in place and retain the benefits
  of decoupling, maintainability and information hiding (only PyList_New()
  and list_sort() need to know about the new field).  This approach also
  reduces the odds of breaking an extension module.

(Collaborative effort by Raymond Hettinger, Hye-Shik Chang, Tim Peters,
 and Armin Rigo.)
2004-02-13 11:36:39 +00:00
Michael W. Hudson ecfeb7f095 This is my patch #876198 plus a NEWS entry and a header frob.
Remove the ability to use (from C) arbitrary objects supporting the
read buffer interface as the co_code member of code objects.
2004-02-12 15:28:27 +00:00
Skip Montanaro 7befb9966e remove support for missing ANSI C header files (limits.h, stddef.h, etc). 2004-02-10 16:50:21 +00:00
Raymond Hettinger 204b000610 Revert improvement to list.append() checked in before it was ready. 2004-02-08 11:08:52 +00:00
Raymond Hettinger 06353f76be Let reversed() work with itself. 2004-02-08 10:49:42 +00:00
Skip Montanaro db6080507d Remove support for --without-universal-newlines (see PEP 11). 2004-02-07 13:53:46 +00:00
Skip Montanaro ce59c04127 Remove support for SunOS 4.
Remove BAD_EXEC_PROTOYPE (leftover from IRIX 4 demolition).
2004-01-17 14:19:44 +00:00
Jeremy Hylton 87c1afa057 Fix name problem in previous checkin: Dict not List 2003-12-26 17:17:49 +00:00