Commit Graph

74 Commits

Author SHA1 Message Date
Pablo Galindo c2931d31f8
bpo-43916: Move the _PyStructSequence_InitType function to the internal API (GH-25854) 2021-05-03 15:50:24 +01:00
Victor Stinner 3bb09947ec
bpo-43916: Add Py_TPFLAGS_DISALLOW_INSTANTIATION type flag (GH-25721)
Add a new Py_TPFLAGS_DISALLOW_INSTANTIATION type flag to disallow
creating type instances: set tp_new to NULL and don't create the
"__new__" key in the type dictionary.

The flag is set automatically on static types if tp_base is NULL or
&PyBaseObject_Type and tp_new is NULL.

Use the flag on the following types:

* _curses.ncurses_version type
* _curses_panel.panel
* _tkinter.Tcl_Obj
* _tkinter.tkapp
* _tkinter.tktimertoken
* _xxsubinterpretersmodule.ChannelID
* sys.flags type
* sys.getwindowsversion() type
* sys.version_info type

Update MyStr example in the C API documentation to use
Py_TPFLAGS_DISALLOW_INSTANTIATION.

Add _PyStructSequence_InitType() function to create a structseq type
with the Py_TPFLAGS_DISALLOW_INSTANTIATION flag set.

type_new() calls _PyType_CheckConsistency() at exit.
2021-04-30 12:46:15 +02:00
Victor Stinner 442ad74fc2
bpo-43687: Py_Initialize() creates singletons earlier (GH-25147)
Reorganize pycore_interp_init() to initialize singletons before the
the first PyType_Ready() call. Fix an issue when Python is configured
using --without-doc-strings.
2021-04-02 15:28:13 +02:00
Pablo Galindo 0632b1012d
bpo-42128: Add __match_args__ to structseq-based classes (GH-24732) 2021-03-04 00:03:44 +00:00
Jozef Grajciar c994ffe695
bpo-11717: fix ssize_t redefinition error when targeting 32bit Windows app (GH-24479) 2021-03-01 11:18:33 +00:00
Victor Stinner 00d7abd7ef
bpo-42519: Replace PyMem_MALLOC() with PyMem_Malloc() (GH-23586)
No longer use deprecated aliases to functions:

* Replace PyMem_MALLOC() with PyMem_Malloc()
* Replace PyMem_REALLOC() with PyMem_Realloc()
* Replace PyMem_FREE() with PyMem_Free()
* Replace PyMem_Del() with PyMem_Free()
* Replace PyMem_DEL() with PyMem_Free()

Modify also the PyMem_DEL() macro to use directly PyMem_Free().
2020-12-01 09:56:42 +01:00
Serhiy Storchaka 686c203cd4
bpo-42423: Accept single base class in PyType_FromModuleAndSpec() (GH-23441) 2020-11-22 13:25:02 +02:00
Serhiy Storchaka fb5db7ec58
bpo-42006: Stop using PyDict_GetItem, PyDict_GetItemString and _PyDict_GetItemId. (GH-22648)
These functions are considered not safe because they suppress all internal errors
and can return wrong result.  PyDict_GetItemString and _PyDict_GetItemId can
also silence current exception in rare cases.

Remove no longer used _PyDict_GetItemId.
Add _PyDict_ContainsId and rename _PyDict_Contains into
_PyDict_Contains_KnownHash.
2020-10-26 08:43:39 +02:00
Victor Stinner 97d15ae1d8
bpo-40170: Use inline _PyType_HasFeature() function (GH-22375)
Use _PyType_HasFeature() in the _io module and in structseq
implementation. Replace PyType_HasFeature() opaque function call with
_PyType_HasFeature() inlined function.
2020-09-23 14:08:38 +02:00
Victor Stinner 384621c42f
bpo-41078: Rename pycore_tupleobject.h to pycore_tuple.h (GH-21056) 2020-06-22 17:27:35 +02:00
Pablo Galindo 1cf15af9a6 bpo-40217: Ensure Py_VISIT(Py_TYPE(self)) is always called for PyType_FromSpec types (reverts GH-19414) (GH-20264)
Heap types now always visit the type in tp_traverse. See added docs for details.

This reverts commit 0169d3003b.

Automerge-Triggered-By: @encukou
2020-05-27 02:03:38 -07:00
Victor Stinner 4a21e57fe5
bpo-40268: Remove unused structmember.h includes (GH-19530)
If only offsetof() is needed: include stddef.h instead.

When structmember.h is used, add a comment explaining that
PyMemberDef is used.
2020-04-15 02:35:41 +02:00
Victor Stinner 60ac6ed557
bpo-39573: Use Py_SET_SIZE() function (GH-18402)
Replace direct acccess to PyVarObject.ob_size with usage of
the Py_SET_SIZE() function.
2020-02-07 23:18:08 +01:00
Serhiy Storchaka bd44a7ead9
bpo-38650: Constify PyStructSequence_UnnamedField. (GH-17005)
Make it a constant and referring to a constant string.
2019-11-16 18:55:29 +02:00
Serhiy Storchaka 279f44678c
bpo-37206: Unrepresentable default values no longer represented as None. (GH-13933)
In ArgumentClinic, value "NULL" should now be used only for unrepresentable default values
(like in the optional third parameter of getattr). "None" should be used if None is accepted
as argument and passing None has the same effect as not passing the argument at all.
2019-09-14 12:24:05 +03:00
Raymond Hettinger 4210ad5ebd
bpo-38096: Complete the "structseq" and "named tuple" cleanup (GH-16010) 2019-09-12 07:56:28 -07:00
Pablo Galindo 3caf4de6f0
Call PyObject_GC_UnTrack in structseq dealloc (GH-13751) 2019-06-02 21:52:49 +01:00
Pablo Galindo 7ffcf848df
bpo-37126: Allow structseq objects to be tracked by the GC (GH-13729) 2019-06-02 15:45:13 +01:00
Eddie Elizondo 364f0b0f19 bpo-35810: Incref heap-allocated types in PyObject_Init (GH-11661)
* Incref heap-allocated types in PyObject_Init
* Add documentation and porting notes to What's New
2019-03-27 12:52:18 +01:00
Zackery Spytz 93e8012f2c bpo-36398: Fix a possible crash in structseq_repr(). (GH-12492)
If the first PyUnicode_DecodeUTF8() call fails in structseq_repr(),
_PyUnicodeWriter_Dealloc() will be called on an uninitialized
_PyUnicodeWriter.
2019-03-22 09:24:34 +02:00
Victor Stinner c70ab02df2
bpo-36365: Rewrite structseq_repr() using _PyUnicodeWriter (GH-12440)
No longer limit repr(structseq) to 512 bytes. Use _PyUnicodeWriter
for better performance and to write directly Unicode rather than
encoding repr() value to UTF-8 and then decoding from UTF-8.
2019-03-20 00:05:51 +01:00
Serhiy Storchaka d53fe5f407
bpo-36254: Fix invalid uses of %d in format strings in C. (GH-12264) 2019-03-13 22:59:55 +02:00
Sergey Fedoseev 234531b446 bpo-36030: Add _PyTuple_FromArray() function (GH-11954) 2019-02-25 17:59:12 +01:00
Victor Stinner 989052047e
Fix compiler warning in structseq_repr() (GH-10841)
Replace strncpy() with memcpy() in structseq_repr() to fix the
following compiler warning:

Objects/structseq.c:187:5: warning: 'strncpy' specified bound depends on the length of the source argument [-Wstringop-overflow=]
     strncpy(pbuf, typ->tp_name, len);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Objects/structseq.c:185:11: note: length computed here
     len = strlen(typ->tp_name) > TYPE_MAXSIZE ? TYPE_MAXSIZE :

The function writes the terminating NUL byte later.
2018-12-01 02:46:40 +01:00
Pablo Galindo bfb855bef6
bpo-34784: Implement correct cleanup in PyStructSequence new implementation (GH-10536)
PyTuple_Pack can fail and return NULL. If this happens, then PyType_FromSpecWithBases will incorrectly create a new type without bases. Also, it will crash on the Py_DECREF that follows. Also free members and type in error conditions.
2018-11-15 02:03:57 +00:00
Eddie Elizondo 474eedfb3d bpo-34784: Fix PyStructSequence_NewType with heap-allocated StructSequence (GH-9665) 2018-11-13 13:09:31 +01:00
Siddhesh Poyarekar 55edd0c185 bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. (GH-6030)
METH_NOARGS functions need only a single argument but they are cast
into a PyCFunction, which takes two arguments.  This triggers an
invalid function cast warning in gcc8 due to the argument mismatch.
Fix this by adding a dummy unused argument.
2018-04-29 21:59:33 +03:00
Serhiy Storchaka 18b250f844 bpo-29793: Convert some builtin types constructors to Argument Clinic. (#615) 2017-03-19 08:51:07 +02:00
Serhiy Storchaka 007d7ff73f Issue #28761: The fields name and doc of structures PyMemberDef, PyGetSetDef,
PyStructSequence_Field, PyStructSequence_Desc, and wrapperbase are now of
type "const char *" rather of "char *".
2016-11-22 07:58:08 +02:00
Serhiy Storchaka 85b0f5beb1 Added the const qualifier to char* variables that refer to readonly internal
UTF-8 represenatation of Unicode objects.
2016-11-20 10:16:47 +02:00
Serhiy Storchaka 06515833fe Replaced outdated macros _PyUnicode_AsString and _PyUnicode_AsStringAndSize
with PyUnicode_AsUTF8 and PyUnicode_AsUTF8AndSize.
2016-11-20 09:13:07 +02:00
Serhiy Storchaka 2d06e84455 Issue #25923: Added the const qualifier to static constant arrays. 2015-12-25 19:53:18 +02:00
Serhiy Storchaka 56f6e76c68 Issue #15989: Fixed some scarcely probable integer overflows.
It is very unlikely that they can occur in real code for now.
2015-09-06 21:25:30 +03:00
Victor Stinner 1c8f059019 Issue #18520: Add a new PyStructSequence_InitType2() function, same than
PyStructSequence_InitType() except that it has a return value (0 on success,
-1 on error).

 * PyStructSequence_InitType2() now raises MemoryError on memory allocation failure
 * Fix also some calls to PyDict_SetItemString(): handle error
2013-07-22 22:24:54 +02:00
Victor Stinner 9a146eeadb Issue #18408: Fix structseq_reduce(), handle PyDict_SetItemString() failure 2013-07-17 13:41:39 +02:00
Victor Stinner 26f91999b4 Close #18469: Replace PyDict_GetItemString() with _PyDict_GetItemId() in structseq.c
_PyDict_GetItemId() is more efficient: it only builds the Unicode string once.
Identifiers (dictionary keys) are now created at Python initialization, and if
the creation failed, Python does exit with a fatal error.

Before, PyDict_GetItemString() failure was not handled: structseq_new() could
call PyObject_GC_NewVar() with a negative size, and structseq_dealloc() could
also crash.
2013-07-17 01:22:45 +02:00
Stefan Krah 6b962860e2 Check for NULL return value in PyStructSequence_NewType(). Found by Coverity. 2012-08-19 11:20:41 +02:00
Antoine Pitrou 4b3c7846c9 Fix indentation 2012-02-15 02:52:58 +01:00
Antoine Pitrou 37784ba5c0 Issue #13020: Fix a reference leak when allocating a structsequence object fails.
Patch by Suman Saha.
2012-02-15 02:51:43 +01:00
Martin v. Löwis 4d0d471a80 Merge branches/pep-0384. 2010-12-03 20:14:31 +00:00
Georg Brandl 71c23d4473 Include structseq.h in Python.h, and remove now-redundant includes in individual sources. 2010-11-30 09:30:54 +00:00
Benjamin Peterson d02441ea2f fix repr of complicated structseqs #9206 2010-07-08 22:33:03 +00:00
Benjamin Peterson ccabcd4bd4 make struct sequences subclass tuple; kill lots of code
This fixes #8413.
2010-07-07 20:54:01 +00:00
Antoine Pitrou f95a1b3c53 Recorded merge of revisions 81029 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines

  Untabify C files. Will watch buildbots.
........
2010-05-09 15:52:27 +00:00
Mark Dickinson e94c679df0 Issue #1717: rename tp_compare to tp_reserved. I'll change the
type of tp_compare in a separate commit, for ease of reversion
should things go wrong.
2009-02-02 20:36:42 +00:00
Neal Norwitz 2f99b24172 Merged revisions 66006 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt modes)

........
  r66006 | neal.norwitz | 2008-08-23 22:04:52 -0700 (Sat, 23 Aug 2008) | 25 lines

  Fix:
   * crashes on memory allocation failure found with failmalloc
   * memory leaks found with valgrind
   * compiler warnings in opt mode which would lead to invalid memory reads
   * problem using wrong name in decimal module reported by pychecker

  Update the valgrind suppressions file with new leaks that are small/one-time
  leaks we don't care about (ie, they are too hard to fix).

  TBR=barry
  TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt modes)
    in opt mode:
    valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
      ./python -E -tt ./Lib/test/regrtest.py -uall,-bsddb,-compiler \
                          -x test_logging test_ssl test_multiprocessing
    valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
      ./python -E -tt ./Lib/test/regrtest.py test_multiprocessing
    for i in `seq 1 4000` ; do
      LD_PRELOAD=~/local/lib/libfailmalloc.so FAILMALLOC_INTERVAL=$i \
          ./python -c pass
    done

  At least some of these fixes should probably be backported to 2.5.
........
2008-08-24 05:48:10 +00:00
Marc-André Lemburg 4cc0f24857 Rename PyUnicode_AsString -> _PyUnicode_AsString and
PyUnicode_AsStringAndSize -> _PyUnicode_AsStringAndSize to mark
them for interpreter internal use only.

We'll have to rework these APIs or create new ones for the
purpose of accessing the UTF-8 representation of Unicode objects
for 3.1.
2008-08-07 18:54:33 +00:00
Christian Heimes d32ed6f511 Merged revisions 59933-59951 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r59935 | raymond.hettinger | 2008-01-13 07:15:15 +0100 (Sun, 13 Jan 2008) | 1 line

  Named tuple is a concept, not a specific type.
........
  r59936 | raymond.hettinger | 2008-01-13 07:18:07 +0100 (Sun, 13 Jan 2008) | 1 line

  Fix spelling.
........
  r59937 | georg.brandl | 2008-01-13 10:36:18 +0100 (Sun, 13 Jan 2008) | 2 lines

  Clarify the effect of text mode.
........
  r59938 | thomas.heller | 2008-01-13 12:19:43 +0100 (Sun, 13 Jan 2008) | 1 line

  Make Modules/socketobject.c compile for Windows again.
........
  r59939 | ka-ping.yee | 2008-01-13 12:25:13 +0100 (Sun, 13 Jan 2008) | 9 lines

  Check in the patch proposed by Ben Hayden (benjhayden) for issue
  #1550: help('modules') broken by several 3rd party libraries.

  Tested with Python build: trunk:54235:59936M -- the reported error
  occurs with Django installed (or with any __init__.py present on
  the path that raises an exception), and such errors indeed go away
  when this change is applied.
........
  r59940 | georg.brandl | 2008-01-13 16:04:05 +0100 (Sun, 13 Jan 2008) | 2 lines

  Back out r59931 - test_ctypes fails with it.
........
  r59943 | amaury.forgeotdarc | 2008-01-14 01:22:44 +0100 (Mon, 14 Jan 2008) | 6 lines

  As discussed in issue 1700288:
  ctypes takes some liberties when creating python types: it modifies the types'
  __dict__ directly, bypassing all the machinery of type objects which deal with
  special methods.  And this broke recent optimisations of method lookup.
  Now we try to modify the type with more "official" functions.
........
  r59944 | amaury.forgeotdarc | 2008-01-14 01:29:41 +0100 (Mon, 14 Jan 2008) | 5 lines

  Re-apply patch #1700288 (first applied in r59931, rolled back in r59940)
  now that ctypes uses a more supported method to create types:

  Method cache optimization, by Armin Rigo, ported to 2.6 by Kevin Jacobs.
........
  r59946 | amaury.forgeotdarc | 2008-01-14 02:07:27 +0100 (Mon, 14 Jan 2008) | 4 lines

  ?Why did my tests not notice this before?
  Slots inheritance is very different from OO inheritance.
  This code lead to infinite recursion on classes derived from StructType.
........
  r59947 | christian.heimes | 2008-01-14 04:33:52 +0100 (Mon, 14 Jan 2008) | 1 line

  Added new an better structseq representation. E.g. repr(time.gmtime(0)) now returns 'time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)' instead of '(1970, 1, 1, 0, 0, 0, 3, 1, 0)'. The feature is part of #1816: sys.flags
........
  r59948 | christian.heimes | 2008-01-14 04:35:38 +0100 (Mon, 14 Jan 2008) | 1 line

  I missed the most important file
........
  r59949 | christian.heimes | 2008-01-14 04:42:48 +0100 (Mon, 14 Jan 2008) | 1 line

  Applied patch #1816: sys.flags patch
........
  r59950 | christian.heimes | 2008-01-14 05:13:37 +0100 (Mon, 14 Jan 2008) | 2 lines

  Now that I've learnt about structseq objects I felt like converting sys.float_info to a structseq. It's
  readonly and help(sys.float_info) explains the attributes nicely.
........
  r59951 | christian.heimes | 2008-01-14 07:06:19 +0100 (Mon, 14 Jan 2008) | 1 line

  Added more comments to the new structseq repr code and implemented several of Neal's suggestions.
........
2008-01-14 18:49:24 +00:00
Christian Heimes 90aa7646af #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. 2007-12-19 02:45:37 +00:00
Christian Heimes 217cfd1c86 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h 2007-12-02 14:31:20 +00:00