Commit Graph

6814 Commits

Author SHA1 Message Date
Victor Stinner 2bf127d97b
bpo-38631: Replace tp_new_wrapper() fatal error with SystemError (GH-18262)
tp_new_wrapper() now raises a SystemError if called with non-type
self, rather than calling Py_FatalError() which cannot be catched.
2020-01-30 09:02:49 +01:00
Victor Stinner 7a1f6c2da4
bpo-38631: Avoid Py_FatalError() in init_slotdefs() (GH-18263)
Rename init_slotdefs() to _PyTypes_InitSlotDefs() and add a return
value of type PyStatus. The function is now called exactly once from
_PyTypes_Init(). Replace calls to init_slotdefs() with an assertion
checking that slotdefs is initialized.
2020-01-30 09:02:14 +01:00
Victor Stinner 5eb8bff7e4
bpo-38631: Replace Py_FatalError() with _PyObject_ASSERT_FAILED_MSG() (GH-18258)
Replace Py_FatalError() with _PyObject_ASSERT_FAILED_MSG() in
object.c and typeobject.c to also dump the involved Python object on
a fatal error. It should ease debug when such fatal error occurs.

If the double linked list is inconsistent, _Py_ForgetReference() no
longer dumps previous and next objects in the fatal error, it now
only dumps the current object. It ensures that the error message
is displayed even if dumping the object does crash Python.

Enhance _Py_ForgetReference() error messages;
_PyObject_ASSERT_FAILED_MSG() logs the "_Py_ForgetReference" function
name.
2020-01-30 09:01:07 +01:00
Victor Stinner 5428f48b63
Remove deadcode in _Py_inc_count() (GH-18257)
(tp->tp_next != NULL) check became redundant with
commit 45294a9562 (merged in 2006).
2020-01-29 19:22:11 +01:00
Bruce Merry d07d9f4c43
bpo-36051: Drop GIL during large bytes.join() (GH-17757)
Improve multi-threaded performance by dropping the GIL in the fast path
of bytes.join. To avoid increasing overhead for small joins, it is only
done if the output size exceeds a threshold.
2020-01-29 16:09:24 +09:00
Victor Stinner a278313518
bpo-38631: Avoid Py_FatalError() in PyCode_New() (GH-18215)
intern_strings() now raises a SystemError, rather than calling
Py_FatalError().

intern_string_constants() now reports exceptions to the caller,
rather than ignoring silently exceptions.
2020-01-27 23:24:13 +01:00
Victor Stinner 47ee8a6063
bpo-38631: Avoid Py_FatalError() in _memory_release() (GH-18214)
If the export count is negative, _memory_release() now raises a
SystemError and returns -1, rather than calling Py_FatalError()
which aborts the process.
2020-01-27 22:37:44 +01:00
Victor Stinner a94c6b61aa
bpo-38631: Avoid Py_FatalError() in PyModule_Create2() (GH-18212)
If PyModule_Create2() is called when the Python import machinery is
not initialized, it now raises a SystemError and returns NULL,
instead of calling Py_FatalError() which aborts the process.

The caller must be prepared to handle NULL anyway.
2020-01-27 22:37:05 +01:00
Dong-hee Na 9e1ed518a5 bpo-39453: Add testcase for bpo-39453 (GH-18202)
https://bugs.python.org/issue39453



Automerge-Triggered-By: @pablogsal

Automerge-Triggered-By: @pablogsal
2020-01-27 09:04:25 -08:00
Dong-hee Na 4dbf2d8c67 bpo-39453: Make list.__contains__ hold strong references to avoid crashes (GH-18181) 2020-01-27 15:02:23 +00:00
Dong-hee Na 14d80d0b60 bpo-39425: Fix list.count performance regression (GH-18119)
https://bugs.python.org/issue39425



Automerge-Triggered-By: @pablogsal
2020-01-22 09:36:54 -08:00
Dong-hee Na 0d5eac8c32 closes bpo-39415: Remove unused codes from longobject.c complexobject.c floatobject.c. (GH-18105) 2020-01-21 18:49:30 -08:00
Victor Stinner 629023c05b
bpo-33387: Fix compiler warning in frame_block_unwind() (GH-18099)
Replace int with intptr_t to fix the warning:

    objects\frameobject.c(341): warning C4244: 'initializing':
    conversion from '__int64' to 'int', possible loss of data
2020-01-21 12:47:29 +01:00
Andrew Svetlov a96e06db77
bpo-39386: Prevent double awaiting of async iterator (GH-18081) 2020-01-21 00:49:30 +02:00
Pablo Galindo cd7db76a63
bpo-39372: Clean header files of declared interfaces with no implementations (GH-18037)
The public API symbols being removed are:

_PyBytes_InsertThousandsGroupingLocale, _PyBytes_InsertThousandsGrouping, _Py_InitializeFromArgs, _Py_InitializeFromWideArgs, _PyFloat_Repr, _PyFloat_Digits,
_PyFloat_DigitsInit, PyFrame_ExtendStack, _PyAIterWrapper_Type, PyNullImporter_Type, PyCmpWrapper_Type, PySortWrapper_Type, PyNoArgsFunction.
2020-01-18 03:14:59 +00:00
Niklas Fiekas c5b79003f5 bpo-31031: Unify duplicate bits_in_digit and bit_length (GH-2866)
Add _Py_bit_length() to unify duplicate bits_in_digit() and bit_length().
2020-01-16 15:09:19 +01:00
Pablo Galindo 4b66fa6ce9
bpo-39200: Correct the error message for range() empty constructor (GH-17813)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2020-01-05 17:30:53 +00:00
Anthony Sottile 22424c02e5 Document CodeType.replace (GH-17776) 2020-01-01 06:11:16 +00:00
Inada Naoki dfef986f12
bpo-38588: Optimize list comparison. (GH-17766)
Mitigate performance regression of the list comparison caused by 2d5bf56.
2019-12-31 10:58:37 +09:00
Dong-hee Na 2d5bf568ea bpo-38588: Fix possible crashes in dict and list when calling PyObject_RichCompareBool (GH-17734)
Take strong references before calling PyObject_RichCompareBool to protect against the case
where the object dies during the call.
2019-12-31 01:04:22 +00:00
Zackery Spytz d9e561d23d bpo-38610: Fix possible crashes in several list methods (GH-17022)
Hold strong references to list elements while calling PyObject_RichCompareBool().
2019-12-30 19:32:58 +00:00
Batuhan Taşkaya c0052f3fe3 closes bpo-30364: Replace deprecated no_address_safety_analysis attribute. (GH-17702) 2019-12-26 20:51:34 -06:00
Victor Stinner 630c8df5cf
bpo-38858: Small integer per interpreter (GH-17315)
Each Python subinterpreter now has its own "small integer
singletons": numbers in [-5; 257] range.

It is no longer possible to change the number of small integers at
build time by overriding NSMALLNEGINTS and NSMALLPOSINTS macros:
macros should now be modified manually in pycore_pystate.h header
file.

For now, continue to share _PyLong_Zero and _PyLong_One singletons
between all subinterpreters.
2019-12-17 13:02:18 +01:00
Batuhan Taşkaya cb8b946ac1 bpo-38629: implement __floor__ and __ceil__ for float type (GH-16985) 2019-12-15 23:00:28 +01:00
Sergey Fedoseev 1f9f69dd4c bpo-27961: Replace PY_LLONG_MAX, PY_LLONG_MIN and PY_ULLONG_MAX with standard macros (GH-15385)
Use standard constants LLONG_MIN, LLONG_MAX and ULLONG_MAX.
2019-12-05 15:55:28 +01:00
Pablo Galindo 016b0280b8
Fix compiler warning in Objects/unicodeobject.c (GH-17440) 2019-12-02 18:09:43 +00:00
Steve Dower c7c01ab1e5
bpo-38922: Raise code.__new__ audit event when code object replace() is called (GH-17394) 2019-11-26 16:27:50 -08:00
HongWeipeng 036fe85bd3 bpo-27145: small_ints[x] could be returned in long_add and long_sub (GH-15716) 2019-11-26 16:54:49 +09:00
Victor Stinner d68b592dd6
bpo-38896: Remove PyUnicode_ClearFreeList() function (GH-17354)
Remove PyUnicode_ClearFreeList() function: the Unicode free list has
been removed in Python 3.3.
2019-11-23 02:30:32 +01:00
Victor Stinner 3d4833488a
bpo-38858: Call _PyUnicode_Fini() in Py_EndInterpreter() (GH-17330)
Py_EndInterpreter() now clears the filesystem codec.
2019-11-22 12:27:50 +01:00
Mark Shannon fee552669f
Produce cleaner bytecode for 'with' and 'async with' by generating separate code for normal and exceptional paths. (#6641)
Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication.
Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
2019-11-21 09:11:43 +00:00
Victor Stinner 5dcc06f6e0
bpo-38858: Allocate small integers on the heap (GH-17301)
Allocate small Python integers (small_ints of longobject.c) on the
heap, rather than using static objects.
2019-11-21 08:51:59 +01:00
Victor Stinner 4dedd0f0dd
bpo-37340: Remove PyMethod_ClearFreeList() and PyCFunction_ClearFreeList() (GH-17284)
Remove PyMethod_ClearFreeList() and PyCFunction_ClearFreeList()
functions: the free lists of bound method objects have been removed.

Remove also _PyMethod_Fini() and _PyCFunction_Fini() functions.
2019-11-20 12:59:12 +01:00
Victor Stinner 7247407c35
bpo-36854: Move _PyRuntimeState.gc to PyInterpreterState (GH-17287)
* Rename _PyGC_InitializeRuntime() to _PyGC_InitState()
* finalize_interp_clear() now also calls _PyGC_Fini() in
  subinterpreters (clear the GC state).
2019-11-20 12:25:50 +01:00
Victor Stinner be143ec996
bpo-38835: Don't use PyFPE_START_PROTECT and PyFPE_END_PROTECT (GH-17231)
The PyFPE_START_PROTECT() and PyFPE_END_PROTECT() macros are empty:
they have been doing nothing for the last year  (since commit
735ae8d139), so stop using them.
2019-11-20 02:51:30 +01:00
Vincent Michel 8e0de2a480 bpo-35409: Ignore GeneratorExit in async_gen_athrow_throw (GH-14755)
Ignore `GeneratorExit` exceptions when throwing an exception into the `aclose` coroutine of an asynchronous generator.





https://bugs.python.org/issue35409
2019-11-19 05:53:52 -08:00
Victor Stinner 04394df74b
bpo-38631: Avoid Py_FatalError() in float.__getformat__() (GH-17232)
Replace Py_FatalError() with a regular RuntimeError exception in
float.__getformat__().
2019-11-18 17:39:48 +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
Victor Stinner b5e170f127
bpo-38644: Add _PyEval_EvalCode() (GH-17183)
_PyFunction_Vectorcall() now pass tstate to function calls.
2019-11-16 01:03:22 +01:00
Victor Stinner 4d231bcc77
bpo-38644: Add _PyObject_Call() (GH-17089)
* Add pycore_call.h internal header file.
* Add _PyObject_Call(): PyObject_Call() with tstate
* Add _PyObject_CallNoArgTstate(): _PyObject_CallNoArg() with tstate
* Add _PyObject_FastCallDictTstate(): _PyObject_FastCallDict()
  with tstate
* _PyObject_Call_Prepend() now takes tstate
* Replace _PyObject_FastCall() calls
  with _PyObject_VectorcallTstate() calls
2019-11-14 13:36:21 +01:00
Victor Stinner b9e681261c
bpo-38644: Add _PyEval_EvalFrame() with tstate (GH-17131)
Add _PyEval_EvalFrame() static inline function to get eval_frame from
tstate->interp.
2019-11-14 12:20:46 +01:00
Victor Stinner 7e43373317
bpo-38644: Add _PyObject_VectorcallTstate() (GH-17052)
* Add _PyObject_VectorcallTstate() function: similar to
  _PyObject_Vectorcall(), but with tstate parameter
* Add tstate parameter to _PyObject_MakeTpCall()
2019-11-08 10:05:17 +01:00
Inada Naoki 6cbc84fb99
bpo-38613: Optimize set operations of dict keys. (GH-16961) 2019-11-08 00:59:04 +09:00
Victor Stinner d12d0e7c0f
bpo-38733: PyErr_Occurred() caller must hold the GIL (GH-17080)
bpo-3605, bpo-38733: Optimize _PyErr_Occurred(): remove "tstate ==
NULL" test.

Py_FatalError() no longer calls PyErr_Occurred() if called without
holding the GIL. So PyErr_Occurred() no longer has to support
tstate==NULL case.

_Py_CheckFunctionResult(): use directly _PyErr_Occurred() to avoid
explicit "!= NULL" test.
2019-11-07 12:42:07 +01:00
Jeroen Demeyer bf17d41826 bpo-37645: add new function _PyObject_FunctionStr() (GH-14890)
Additional note: the `method_check_args` function in `Objects/descrobject.c` is written in such a way that it applies to all kinds of descriptors. In particular, a future re-implementation of `wrapper_descriptor` could use that code.

CC @vstinner @encukou 


https://bugs.python.org/issue37645



Automerge-Triggered-By: @encukou
2019-11-05 07:48:04 -08:00
Victor Stinner 1726909094
bpo-38644: Pass tstate to _Py_CheckFunctionResult() (GH-17050)
* Add tstate parameter to _Py_CheckFunctionResult()
* Add _PyErr_FormatFromCauseTstate()
* Replace PyErr_XXX(...) with _PyErr_XXX(state, ...)
2019-11-05 01:22:12 +01:00
Victor Stinner be434dc038
bpo-38644: Pass tstate to Py_EnterRecursiveCall() (GH-16997)
* Add _Py_EnterRecursiveCall() and _Py_LeaveRecursiveCall() which
  require a tstate argument.
* Pass tstate to _Py_MakeRecCheck() and  _Py_CheckRecursiveCall().
* Convert Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() macros
  to static inline functions.

_PyThreadState_GET() is the most efficient way to get the tstate, and
so using it with _Py_EnterRecursiveCall() and
_Py_LeaveRecursiveCall() should be a little bit more efficient than
using Py_EnterRecursiveCall() and Py_LeaveRecursiveCall() which use
the "slower" PyThreadState_GET().
2019-11-05 00:51:22 +01:00
Serhiy Storchaka 865c3b257f
bpo-28029: Make "".replace("", s, n) returning s for any n != 0. (GH-16981) 2019-10-30 12:03:53 +02:00
Serhiy Storchaka 2e3d873d3b
bpo-38555: Fix an undefined behavior. (GH-16883) 2019-10-23 14:48:08 +03:00
Dong-hee Na 24dc2f8c56 bpo-38525: Fix a segmentation fault when using reverse iterators of empty dict (GH-16846)
The reverse iterator for empty dictionaries was not handling correctly shared-key dictionaries.
2019-10-19 21:01:08 +01:00
Zackery Spytz b16e382c44 bpo-38202: Fix a crash in dict_view & non-itearble. (GH-16241) 2019-10-13 14:49:05 +03:00
Dong-hee Na c39d1ddc01 Fix strict-aliasing rules errors on gcc 4.8.5. (GH-16714) 2019-10-11 17:43:11 +09:00
Zachary Ware 09895c27cd
bpo-38409: Fix grammar in str.strip() docstring (GH-16682) 2019-10-09 16:09:00 -05:00
Pablo Galindo 10cd00a9e3
bpo-38395: Fix ownership in weakref.proxy methods (GH-16632)
The implementation of weakref.proxy's methods call back into the Python
API using a borrowed references of the weakly referenced object
(acquired via PyWeakref_GET_OBJECT). This API call may delete the last
reference to the object (either directly or via GC), leaving a dangling
pointer, which can be subsequently dereferenced.

To fix this, claim a temporary ownership of the referenced object when
calling the appropriate method. Some functions because at the moment they
do not need to access the borrowed referent, but to protect against
future changes to these functions, ownership need to be fixed in
all potentially affected methods.
2019-10-08 16:30:50 +01:00
Serhiy Storchaka d7c387384a bpo-33714: Output an exception raised in module's m_clear(). (GH-16592)
It is similar to the more general code in the gc module, but
here we know the name of the module.



https://bugs.python.org/issue33714



Automerge-Triggered-By: @encukou
2019-10-08 03:46:17 -07:00
Pablo Galindo 36e33c360e
bpo-38400 Don't check for NULL linked list pointers in _PyObject_IsFreed (GH-16630)
Some objects like Py_None are not initialized with conventional means
that prepare the circular linked list pointers, leaving them unlinked
from the rest of the objects. For those objects, NULL pointers does
not mean that they are freed, so we need to skip the check in those
cases.
2019-10-08 00:43:14 +01:00
Victor Stinner 7775349895
bpo-36389: Add newline to _PyObject_AssertFailed() (GH-16629)
Add a newline between the verbose object dump and the Py_FatalError()
logs for readability.
2019-10-07 23:44:05 +02:00
Victor Stinner 60ec6efd96
bpo-36389: Fix _PyBytesWriter in release mode (GH-16624)
Fix _PyBytesWriter API when Python is built in release mode with
assertions.
2019-10-07 22:31:42 +02:00
Victor Stinner 6876257eaa
bpo-36389: _PyObject_CheckConsistency() available in release mode (GH-16612)
bpo-36389, bpo-38376: The _PyObject_CheckConsistency() function is
now also available in release mode. For example, it can be used to
debug a crash in the visit_decref() function of the GC.

Modify the following functions to also work in release mode:

* _PyDict_CheckConsistency()
* _PyObject_CheckConsistency()
* _PyType_CheckConsistency()
* _PyUnicode_CheckConsistency()

Other changes:

* _PyMem_IsPtrFreed(ptr) now also returns 1 if ptr is NULL
  (equals to 0).
* _PyBytesWriter_CheckConsistency() now returns 1 and is only used
  with assert().
* Reorder _PyObject_Dump() to write safe fields first, and only
  attempt to render repr() at the end.
2019-10-07 18:42:01 +02:00
Hai Shi ed8efd8e2c Fix a compile warning in dictobject.c (GH-16610) 2019-10-07 13:20:05 +03:00
Hai Shi 24ddd9c2d6 bpo-38383: Fix possible integer overflow in startswith() of bytes and bytearray. (GH-16603) 2019-10-06 15:17:18 +03:00
Dong-hee Na c38e725d17 bpo-38210: Fix intersection operation with dict view and iterator. (GH-16602) 2019-10-06 14:28:33 +03:00
Victor Stinner 61691d8336
bpo-38353: Cleanup includes in the internal C API (GH-16548)
Use forward declaration of types to avoid includes in the internal C
API. Add also comment to justify other includes.
2019-10-02 23:51:20 +02:00
Victor Stinner 6314abcc08
bpo-37802: Fix a compiler warning in longobject.c (GH-16517)
bpo-37802, bpo-38321: Fix the following warnings:

    longobject.c(420): warning C4244: 'function': conversion from
    'unsigned __int64' to 'sdigit', possible loss of data

    longobject.c(428): warning C4267: 'function': conversion from
    'size_t' to 'sdigit', possible loss of data
2019-10-01 13:29:53 +02:00
Yury Selivanov fc4a044a3c
bpo-30773: Fix ag_running; prohibit running athrow/asend/aclose in parallel (#7468) 2019-09-29 22:59:11 -07:00
T. Wouters c8165036f3 bpo-38115: Deal with invalid bytecode offsets in lnotab (GH-16079)
Document that lnotab can contain invalid bytecode offsets (because of
terrible reasons that are difficult to fix). Make dis.findlinestarts()
ignore invalid offsets in lnotab. All other uses of lnotab in CPython
(various reimplementations of addr2line or line2addr in Python, C and gdb)
already ignore this, because they take an address to look for, instead.

Add tests for the result of dis.findlinestarts() on wacky constructs in
test_peepholer.py, because it's the easiest place to add them.
2019-09-28 07:49:15 -07:00
Serhiy Storchaka 543a3951a1
bpo-38005: Remove support of string argument in InterpreterID(). (GH-16227)
Make negative interpreter id to raise ValueError instead of RuntimeError.
2019-09-25 18:35:57 +03:00
Serhiy Storchaka f163aeaa8c
bpo-38219: Optimize dict creating and updating by a dict. (GH-16268) 2019-09-25 09:47:00 +03:00
Victor Stinner fcdb027234
bpo-38236: Dump path config at first import error (GH-16300)
Python now dumps path configuration if it fails to import the Python
codecs of the filesystem and stdio encodings.
2019-09-23 14:45:47 +02:00
Eddie Elizondo 3368f3c6ae bpo-38140: Make dict and weakref offsets opaque for C heap types (#16076)
* Make dict and weakref offsets opaque for C heap types

* Add news
2019-09-19 17:29:05 +01:00
HongWeipeng 42acb7b8d2 bpo-35696: Simplify long_compare() (GH-16146) 2019-09-19 00:10:15 +09:00
Victor Stinner b39afb7876
bpo-38070: Enhance _PyObject_Dump() (GH-16243)
_PyObject_Dump() now dumps the object address for freed objects and
objects with ob_type=NULL.
2019-09-17 23:36:28 +02:00
Andrew Svetlov c275312a62 bpo-38013: make async_generator_athrow object tolerant to throwing exceptions (GH-16070)
Even when the helper is not started yet.

This behavior follows conventional generator one.
There is no reason for `async_generator_athrow` to handle `gen.throw()` differently.



https://bugs.python.org/issue38013
2019-09-17 05:59:49 -07:00
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
Serhiy Storchaka bf169915ec
bpo-38005: Fixed comparing and creating of InterpreterID and ChannelID. (GH-15652)
* Fix a crash in comparing with float (and maybe other crashes).
* They are now never equal to strings and non-integer numbers.
* Comparison with a large number no longer raises OverflowError.
* Arbitrary exceptions no longer silenced in constructors and comparisons.
* TypeError raised in the constructor contains now the name of the type.
* Accept only ChannelID and int-like objects in channel functions.
* Accept only InterpreterId, int-like objects and str in the InterpreterId constructor.
* Accept int-like objects, not just int in interpreter related functions.
2019-09-13 22:50:27 +03:00
Greg Price 3a4f66707e Cut disused recode_encoding logic in _PyBytes_DecodeEscape. (GH-16013)
All call sites pass NULL for `recode_encoding`, so this path is
completely untested.  That's been true since before Python 3.0.
It adds significant complexity to this logic, so it's best to
take it out.

All call sites now have a literal NULL, and that's been true since
commit 768921cf3 eliminated a conditional (`foo ? bar : NULL`) at
the call site in Python/ast.c where we're parsing a bytes literal.
But even before then, that condition `foo` had been a constant
since unadorned string literals started meaning Unicode, in commit
572dbf8f1 aka v3.0a1~1035 .

The `unicode` parameter is already unused, so mark it as unused too.
The code that acted on it was also taken out before Python 3.0, in
commit 8d30cc014 aka v3.0a1~1031 .

The function (PyBytes_DecodeEscape) is exposed in the API, but it's
never been documented.
2019-09-12 19:12:22 +01:00
Raymond Hettinger 4210ad5ebd
bpo-38096: Complete the "structseq" and "named tuple" cleanup (GH-16010) 2019-09-12 07:56:28 -07:00
Sergey Fedoseev c6734ee7c5 bpo-37802: Slightly improve perfomance of PyLong_FromUnsigned*() (GH-15192) 2019-09-12 15:41:14 +01:00
Daniel Andrade 4a12a178f4 bpo-34331: Fix incorrectly pluralized abstract class error message. (GH-8670) 2019-09-11 17:29:44 +02:00
Raymond Hettinger 7117074410 bpo-38096: Clean up the "struct sequence" / "named tuple" docs (GH-15895)
* bpo-38096: Clean up the "struct sequence" / "named tuple" docs

* Fix remaining occurrences of "struct sequence"

* Repair a user visible docstring
2019-09-11 15:17:32 +01:00
Valentin Haenel 60bba83b5d Doc: Fix typo in fastsearch comments (GH-14608) 2019-09-11 14:43:29 +02:00
Jeroen Demeyer 7a6873cdb1 bpo-37151: remove special case for PyCFunction from PyObject_Call (GH-14684)
bpo-37151: remove special case for PyCFunction from PyObject_Call

Alse, make the undocumented function PyCFunction_Call an alias
of PyObject_Call and deprecate it.
2019-09-11 12:01:01 +01:00
Eddie Elizondo ff023ed36e bpo-37879: Suppress subtype_dealloc decref when base type is a C heap type (GH-15323)
The instance destructor for a type is responsible for preparing
an instance for deallocation by decrementing the reference counts
of its referents.

If an instance belongs to a heap type, the type object of an instance
has its reference count decremented while for static types, which
are permanently allocated, the type object is unaffected by the
instance destructor.

Previously, the default instance destructor searched the class
hierarchy for an inherited instance destructor and, if present,
would invoke it.

Then, if the instance type is a heap type, it would decrement the
reference count of that heap type.  However, this could result in the
premature destruction of a type because the inherited instance
destructor should have already decremented the reference count
of the type object.

This change avoids the premature destruction of the type object
by suppressing the decrement of its reference count when an
inherited, non-default instance destructor has been invoked.

Finally, an assertion on the Py_SIZE of a type was deleted.  Heap
types have a non zero size, making this into an incorrect assertion.

https://github.com/python/cpython/pull/15323
2019-09-11 10:17:13 +01:00
Sergey Fedoseev afdeb189e9 Remove unneeded assignment in PyBytes_Concat() (GH-15274)
The `wb.len = -1` assignment is unneeded since its introduction in 161d695fb0 as `PyObject_GetBuffer` always fills it in.
2019-09-10 17:11:10 +01:00
Jordon Xu 2ec7010206 bpo-37752: Delete redundant Py_CHARMASK in normalizestring() (GH-15095) 2019-09-10 17:04:08 +01:00
Jeroen Demeyer 57ea335606 bpo-37619: update_one_slot() should not ignore wrapper descriptors for wrong type (GH-14836) 2019-09-10 04:21:57 -07:00
dalgarno 359143c686 Fix typo in dict object comment (#15814) 2019-09-10 10:45:07 +01:00
Jeroen Demeyer 5b00dd8fa8 Expand comment explaining update_one_slot (GH-14810) 2019-09-10 02:22:05 -07:00
Greg Price 0711642eec Cut tricky `goto` that isn't needed, in _PyBytes_DecodeEscape. (GH-15825)
This is the sort of `goto` that requires the reader to stare hard at
the code to unpick what it's doing.

On doing so, the answer is... not very much!

* It jumps from the bottom of the loop to almost the top; the effect
  is to bypass the loop condition `s < end` and also the
  `if`-condition `*s != '\\'`, acting as if both are true.

* We've just decremented `s`, after incrementing it in the `switch`
  condition.  So it has the same value as when `s == end` failed.
  Before that was another increment... and before that we had
  `s < end`.  So `s < end` true, then increment, then `s == end`
  false... that means `s < end` is still true.

* Also this means `s` points to the same character as it did for the
  `switch` condition.  And there was a `case '\\'`, which we didn't
  hit -- so `*s != '\\'` is also true.

* That means this has no effect on the behavior!  The most it might do
  is an optimization -- we get to skip those two checks, because (as
  just proven above) we know they're true.

* But gosh, this is the *invalid escape sequence* path.  This does not
  seem like the kind of code path that calls for extreme optimization
  tricks.

So, take the `goto` and the label out.

Perhaps the compiler will notice the exact same facts we showed above,
and generate identical code.  Or perhaps it won't!  That'll be OK.

But then, crucially, if some future edit to this loop causes the
reasoning above to *stop* holding true... the compiler will adjust
this jump accordingly.  One of us fallible humans might not.
2019-09-10 09:51:04 +01:00
Sergey Fedoseev 755d4ef824 Correct overflow check in PyTuple_New() (GH-14838) 2019-09-09 13:40:58 -07:00
Sergey Fedoseev 92709a263e bpo-37840: Fix handling of negative indices in bytearray_getitem() (GH-15250) 2019-09-09 09:28:34 -07:00
HongWeipeng 3c87a667bb bpo-36946:Fix possible signed integer overflow when handling slices. (GH-15639)
This is a complement to PR 13375.
2019-09-08 13:15:56 +03:00
Joannah Nanjekye 74b662cf20 bpo-15088 : Remove PyGen_NeedsFinalizing() (GH-15702)
Remove PyGen_NeedsFinalizing(): it was not
documented, tested or used anywhere within CPython after
the implementation of PEP 442.
2019-09-06 17:41:38 +02:00
animalize 6b519985d2 replace inline function `is_small_int` with a macro version (GH-15710) 2019-09-05 23:00:56 -07:00
Zackery Spytz 60bd1f88f2 bpo-36030: Fix a possible segfault in PyTuple_New() (GH-15670) 2019-09-04 15:58:04 +02:00
Serhiy Storchaka 1f21eaa15e
bpo-15999: Clean up of handling boolean arguments. (GH-15610)
* Use the 'p' format unit instead of manually called PyObject_IsTrue().
* Pass boolean value instead 0/1 integers to functions that needs boolean.
* Convert some arguments to boolean only once.
2019-09-01 12:16:51 +03:00
Serhiy Storchaka 41c57b3353
bpo-37994: Fix silencing all errors if an attribute lookup fails. (GH-15630)
Only AttributeError should be silenced.
2019-09-01 12:03:39 +03:00
Min ho Kim 39d87b5471 Fix typos mostly in comments, docs and test names (GH-15209) 2019-08-30 16:21:19 -04:00
Raymond Hettinger 88ea166dad
bpo-8425: Fast path for set inplace difference when the second set is large (GH-15590) 2019-08-29 09:02:58 -07:00
Rémi Lapeyre 4901fe274b bpo-37034: Display argument name on errors with keyword arguments with Argument Clinic. (GH-13593) 2019-08-29 17:49:08 +03:00
Raymond Hettinger 0138c4ceab
Fix unused variable and signed/unsigned warnings (GH-15537) 2019-08-27 09:55:13 -07:00
Victor Stinner bed4817d52
Make PyXXX_Fini() functions private (GH-15531)
For example, rename PyTuple_Fini() to _PyTuple_Fini().

These functions are only declared in the internal C API.
2019-08-27 00:12:32 +02:00
Forest Gregg 998cf1f03a bpo-27575: port set intersection logic into dictview intersection (GH-7696) 2019-08-26 00:17:43 -07:00
Nick Coghlan 5dbe0f59b7
bpo-37757: Disallow PEP 572 cases that expose implementation details (GH-15131)
- drop TargetScopeError in favour of raising SyntaxError directly
  as per the updated PEP 572
- comprehension iteration variables are explicitly local, but
  named expression targets in comprehensions are nonlocal or
  global. Raise SyntaxError as specified in PEP 572
- named expression targets in the outermost iterable of a
  comprehension have an ambiguous target scope. Avoid resolving
  that question now by raising SyntaxError. PEP 572
  originally required this only for cases where the bound name
  conflicts with the iteration variable in the comprehension,
  but CPython can't easily restrict the exception to that case
  (as it doesn't know the target variable names when visiting
  the outermost iterator expression)
2019-08-25 23:45:40 +10:00
Berker Peksag 805f8f9afe bpo-19072: Make @classmethod support chained decorators (GH-8405) 2019-08-24 15:37:25 -07:00
Greg Price 5e63ab05f1 bpo-37812: Convert CHECK_SMALL_INT macro to a function so the return is explicit. (GH-15216) 2019-08-24 10:19:37 -07:00
Serhiy Storchaka ef61c524dd
bpo-37830: Fix compilation of break and continue in finally. (GH-15320)
Fix compilation of "break" and "continue" in the
"finally" block when the corresponding "try" block
contains "return" with a non-constant value.
2019-08-24 13:11:52 +03:00
Steve Dower 7ebdda0dbe
bpo-36311: Fixes decoding multibyte characters around chunk boundaries and improves decoding performance (GH-15083) 2019-08-21 16:22:33 -07:00
Benjamin Peterson d33e46d17d
abstract.c should not be executable. (GH-15348) 2019-08-20 19:19:43 -07:00
Joannah Nanjekye 9e66aba999 bpo-15913: Implement PyBuffer_SizeFromFormat() (GH-13873)
Implement PyBuffer_SizeFromFormat() function (previously
documented but not implemented): call struct.calcsize().
2019-08-20 15:46:36 +01:00
Victor Stinner 18f8dcfa10
bpo-37732: Fix GCC warning in _PyObject_Malloc() (GH-15333)
pymalloc_alloc() now returns directly the pointer, return NULL on
memory allocation error.

allocate_from_new_pool() already uses NULL as marker for "allocation
failed".
2019-08-20 12:28:02 +01:00
Jeroen Demeyer 0567786d26 bpo-37540: vectorcall: keyword names must be strings (GH-14682)
The fact that keyword names are strings is now part of the vectorcall and `METH_FASTCALL` protocols. The biggest concrete change is that `_PyStack_UnpackDict` now checks that and raises `TypeError` if not.

CC @markshannon @vstinner 


https://bugs.python.org/issue37540
2019-08-16 03:41:27 -07:00
Jeroen Demeyer 37806f404f bpo-37207: enable vectorcall for type.__call__ (GH-14588)
Base PR for other PRs that want to play with `type.__call__` such as #13930 and #14589.

The author is really @markshannon I just made the PR.


https://bugs.python.org/issue37207



Automerge-Triggered-By: @encukou
2019-08-15 08:49:46 -07:00
Sergey Fedoseev 4fa10dde40 bpo-36030: Improve performance of some tuple operations (GH-12052) 2019-08-14 16:10:33 +02:00
Hai Shi 7e479c8221 bpo-37681: no_sanitize_thread support from GCC 5.1 (GH-15096)
Fix the following warning with GCC 4.8.5:
Objects/obmalloc.c: warning: ‘no_sanitize_thread’ attribute directive ignored
2019-08-14 11:50:19 +02:00
Zackery Spytz 43d564c18c bpo-37337: Fix a GCC 9 warning in Objects/descrobject.c (GH-14814)
Commit b1263d5a60 causes GCC 9.1.0 to
give a warning in Objects/descrobject.c.
2019-08-14 14:51:06 +09:00
Serhiy Storchaka 18b711c5a7
bpo-37648: Fixed minor inconsistency in some __contains__. (GH-14904)
The collection's item is now always at the left and
the needle is on the right of ==.
2019-08-04 14:12:48 +03:00
Min ho Kim c4cacc8c5e Fix typos in comments, docs and test names (#15018)
* Fix typos in comments, docs and test names

* Update test_pyparse.py

account for change in string length

* Apply suggestion: splitable -> splittable

Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu>

* Apply suggestion: splitable -> splittable

Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu>

* Apply suggestion: Dealloccte -> Deallocate

Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu>

* Update posixmodule checksum.

* Reverse idlelib changes.
2019-07-30 18:16:13 -04:00
Inada Naoki 3e54b57531
bpo-37340: remove free_list for bound method objects (GH-14232) 2019-07-26 15:05:50 +09:00
Inada Naoki fb26504d14
bpo-37543: optimize pymalloc (#14674)
PyObject_Malloc() and PyObject_Free() inlines pymalloc_alloc and
pymalloc_free partially.
But when PGO is not used, compiler don't know where is the hot part
in pymalloc_alloc and pymalloc_free.
2019-07-17 21:23:57 +09:00
Jeroen Demeyer 1dbd084f1f bpo-29548: no longer use PyEval_Call* functions (GH-14683) 2019-07-12 00:57:32 +09:00
Jeroen Demeyer 59ad110d7a bpo-37547: add _PyObject_CallMethodOneArg (GH-14685) 2019-07-11 17:59:05 +09:00
Tim Peters b64c2c66e5
Fix compiler warning in new code. (#14690)
uintptr_t is an integer type, and can't be compared to NULL directly.
2019-07-10 16:24:01 -05:00
Neil Schemenauer 5d25f2b703
bpo-37537: Compute allocated blocks in _Py_GetAllocatedBlocks() (#14680)
Keeping an account of allocated blocks slows down _PyObject_Malloc()
and _PyObject_Free() by a measureable amount.  Have
_Py_GetAllocatedBlocks() iterate over the arenas to sum up the
allocated blocks for pymalloc.
2019-07-10 12:04:16 -07:00
Jeroen Demeyer 762f93ff2e bpo-37337: Add _PyObject_CallMethodNoArgs() (GH-14267) 2019-07-08 17:19:25 +09:00
Jeroen Demeyer 7b57c03a7c bpo-37151: remove _PyMethodDef_RawFastCall* functions (GH-14603) 2019-07-05 17:43:22 +02:00
Jeroen Demeyer 0d722f3cd6 bpo-36974: separate vectorcall functions for each calling convention (GH-13781) 2019-07-05 14:48:24 +02:00
Jeroen Demeyer 196a530e00 bpo-37483: add _PyObject_CallOneArg() function (#14558) 2019-07-04 19:31:34 +09:00
Jeroen Demeyer 53c2143440 bpo-37233: optimize method_vectorcall in case of totalargs == 0 (GH-14550) 2019-07-03 19:53:59 +09:00
Jeroen Demeyer d4efd917ac bpo-36904: Optimize _PyStack_UnpackDict (GH-14517) 2019-07-02 18:49:40 +09:00
Pablo Galindo 4a2edc34a4 bpo-37221: Add PyCode_NewWithPosOnlyArgs to be used internally and set PyCode_New as a compatibility wrapper (GH-13959)
Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper
2019-07-01 12:35:05 +02:00
Jeroen Demeyer b1263d5a60 bpo-37337: Add _PyObject_VectorcallMethod() (GH-14228) 2019-06-28 18:49:00 +09:00
Brandt Bucher 2a7d596f27 bpo-37417: Fix error handling in bytearray.extend. (GH-14407) 2019-06-26 22:06:18 +03:00
Victor Stinner ed076ed467
bpo-37388: Add PyUnicode_Decode(str, 0) fast-path (GH-14385)
Add a fast-path to PyUnicode_Decode() for size equals to 0.
2019-06-26 01:49:32 +02:00
Victor Stinner 22eb689cf3
bpo-37388: Development mode check encoding and errors (GH-14341)
In development mode and in debug build, encoding and errors arguments
are now checked on string encoding and decoding operations. Examples:
open(), str.encode() and bytes.decode().

By default, for best performances, the errors argument is only
checked at the first encoding/decoding error, and the encoding
argument is sometimes ignored for empty strings.
2019-06-26 00:51:05 +02:00
Serhiy Storchaka 894263ba80
bpo-24214: Fixed the UTF-8 and UTF-16 incremental decoders. (GH-14304)
* The UTF-8 incremental decoders fails now fast if encounter
  a sequence that can't be handled by the error handler.
* The UTF-16 incremental decoders with the surrogatepass error
  handler decodes now a lone low surrogate with final=False.
2019-06-25 11:54:18 +03:00
Jeroen Demeyer a8b27e623d bpo-36974: inherit tp_vectorcall_offset unconditionally (GH-13858) 2019-06-24 12:41:05 +02:00
Inada Naoki 770847a7db
bpo-37348: optimize decoding ASCII string (GH-14283)
`_PyUnicode_Writer` is a relatively complex structure.  Initializing it is significant overhead when decoding short ASCII string.
2019-06-24 12:30:24 +09:00
Jeroen Demeyer 7e1a9aacff bpo-37151: remove _PyCFunction_FastCallDict (GH-14269) 2019-06-21 00:38:45 +09:00
Victor Stinner b45d259bdd
bpo-36710: Use tstate in pylifecycle.c (GH-14249)
In pylifecycle.c: pass tstate argument, rather than interp argument,
to functions.
2019-06-20 00:05:23 +02:00
Jeroen Demeyer 59543347d1 bpo-37151: remove _PyFunction_FastCallDict (GH-13864) 2019-06-18 20:05:41 +09:00
Jeroen Demeyer 988e6aa322 bpo-37233: use _PY_FASTCALL_SMALL_STACK in method_vectorcall (GH-13974) 2019-06-18 17:56:53 +09:00
Jeroen Demeyer c78fe320db bpo-37151: use PyVectorcall_Call for all calls of "method" (GH-13972) 2019-06-18 17:50:28 +09:00
Victor Stinner 2ff58a24e8
bpo-37194: Add a new public PyObject_CallNoArgs() function (GH-13890)
Add a new public PyObject_CallNoArgs() function to the C API: call a
callable Python object without any arguments.

It is the most efficient way to call a callback without any argument.
On x86-64, for example, PyObject_CallFunctionObjArgs(func, NULL)
allocates 960 bytes on the stack per call, whereas
PyObject_CallNoArgs(func) only allocates 624 bytes per call.

It is excluded from stable ABI 3.8.

Replace private _PyObject_CallNoArg() with public
PyObject_CallNoArgs() in C extensions: _asyncio, _datetime,
_elementtree, _pickle, _tkinter and readline.
2019-06-17 14:27:23 +02:00
Jeroen Demeyer 2e9954d347 bpo-36922: use Py_TPFLAGS_METHOD_DESCRIPTOR in lookup_maybe_method() (GH-13865) 2019-06-17 20:53:20 +09:00
Jeroen Demeyer 0456df4a55 bpo-37231: remove _PyObject_FastCall_Prepend (GH-14153) 2019-06-17 20:41:32 +09:00
Hai Shi c83356cae2 closes bpo-37300: Remove unnecessary Py_XINCREF in classobject.c. (GH-14120) 2019-06-16 13:19:19 -07:00
Jeroen Demeyer b2f94730d9 bpo-37249: add declaration of _PyObject_GetMethod (GH-14015) 2019-06-14 19:37:15 +09:00
Jeroen Demeyer b4b814b398 bpo-37231: optimize calls of special methods (GH-13973) 2019-06-13 18:26:44 +09:00
Tim Peters d1c85a27ea
bpo-37257: obmalloc: stop simple arena thrashing (#14039)
GH-14039:  allow (no more than) one wholly empty arena on the usable_arenas list.

This prevents thrashing in some easily-provoked simple cases that could end up creating and destroying an arena on each loop iteration in client code.   Intuitively, if the only arena on the list becomes empty, it makes scant sense to give it back to the system unless we know we'll never need another free pool again before another arena frees a pool.  If the latter obtains, then - yes - this will "waste" an arena.
2019-06-12 22:41:03 -05:00
Paul Monson ff6bb0aa95 bpo-37236: pragma optimize off for _Py_c_quot on Windows arm64 (GH-13983) 2019-06-12 11:08:40 -07:00
Victor Stinner 376ce9852e
bpo-26219: Fix compiler warning in _PyCode_InitOpcache() (GH-13997)
Fix MSVC warning:

    objects\codeobject.c(285): warning C4244: '=':
    conversion from 'Py_ssize_t' to 'unsigned char',
    possible loss of data
2019-06-12 04:41:16 +02:00
Raymond Hettinger 1f11cf9521
bpo-37219: Remove erroneous optimization for differencing an empty set (GH-13965) 2019-06-11 01:15:24 -07:00
Jeroen Demeyer 1f9531764c bpo-37138: fix undefined behaviour with memcpy() on NULL array (GH-13867) 2019-06-07 11:01:53 -07:00
Jeroen Demeyer 3f345c3925 bpo-37151: simplify classmethoddescr_call (GH-13340) 2019-06-07 12:20:23 +02:00
Zackery Spytz dc2476500d bpo-37170: Fix the cast on error in PyLong_AsUnsignedLongLongMask() (GH-13860) 2019-06-06 22:39:23 +02:00
Victor Stinner ea9f168957
bpo-26219: Fix compiler warning in _PyCode_InitOpcache() (GH-13809)
Fix this MSVC warning:

    objects\codeobject.c(264): warning C4244: '=':
    conversion from 'Py_ssize_t' to 'unsigned char', possible loss of data
2019-06-04 17:08:24 +02:00
Inada Naoki 91234a1636
bpo-26219: per opcode cache for LOAD_GLOBAL (GH-12884)
This patch implements per opcode cache mechanism, and use it in
only LOAD_GLOBAL opcode.

Based on Yury's opcache3.patch in bpo-26219.
2019-06-03 21:30:58 +09:00
Petr Viktorin 1e375c6269
bpo-36027: Really fix "incompatible pointer type" compiler warning (GH-13761)
Apologies for the earlier hasty attempt.
2019-06-03 02:28:29 +02:00
Jeroen Demeyer be718c33f0 bpo-36974: add some assertions for PEP 590 (GH-13682) 2019-06-03 01:57:22 +02:00
Petr Viktorin 7f4ae1b2cc
bpo-37012: Clean up special cases in PyType_FromSpecWithBases slot assignments (GH-13496)
The main slot assignment loop is now if-else if ladder, making the
control flow clearer.

Based on suggestion by Victor Stinner in:
https://github.com/python/cpython/pull/10304/#issuecomment-491123026
2019-06-03 01:31:12 +02:00
Petr Viktorin e584cbff1e
bpo-36027 bpo-36974: Fix "incompatible pointer type" compiler warnings (GH-13758) 2019-06-03 01:08:14 +02:00
Petr Viktorin fb9423fd0a
bpo-36974: Make tp_call=PyVectorcall_Call work for inherited types (GH-13699)
When inheriting a heap subclass from a vectorcall class that sets
`.tp_call=PyVectorcall_Call` (as recommended in PEP 590), the subclass does
not inherit `_Py_TPFLAGS_HAVE_VECTORCALL`, and thus `PyVectorcall_Call` does
not work for it.

This attempts to solve the issue by:
* always inheriting `tp_vectorcall_offset` unless `tp_call` is overridden
  in the subclass
* inheriting _Py_TPFLAGS_HAVE_VECTORCALL for static types, unless `tp_call`
  is overridden
* making `PyVectorcall_Call` ignore `_Py_TPFLAGS_HAVE_VECTORCALL`

This means it'll be ever more important to only call `PyVectorcall_Call`
on classes that support vectorcall. In `PyVectorcall_Call`'s intended role
as `tp_call` filler, that's not a problem.
2019-06-02 23:52:20 +02:00
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
Mark Dickinson c52996785a
bpo-36027: Extend three-argument pow to negative second argument (GH-13266) 2019-06-02 10:24:06 +01:00
Serhiy Storchaka bdbad71b9d
bpo-20092. Use __index__ in constructors of int, float and complex. (GH-13108) 2019-06-02 00:05:48 +03:00
Pablo Galindo 3b57f50efc
bpo-36842: Pass positional only parameters to code_new audit hook (GH-13707) 2019-06-01 21:18:48 +01:00
Francisco Couzo 9843bc110d Improve exception message for str.format (GH-12675) 2019-06-01 10:14:00 -07:00
Pablo Galindo cd74e66a8c
bpo-37122: Make co->co_argcount represent the total number of positonal arguments in the code object (GH-13726) 2019-06-01 18:08:04 +01:00
Tim Hoffmann 5c22476c01 Improve docstring of list.sort (GH-8516) 2019-05-31 21:10:02 -07:00
Tim Peters 1c263e39c4
bpo-37029: keep usable_arenas in sorted order without searching (#13612)
This adds a vector of "search fingers" so that usable_arenas can be kept in sorted order (by number of free pools) via constant-time operations instead of linear search.

This should reduce worst-case time for reclaiming a great many objects from O(A**2) to O(A), where A is the number of arenas.  See bpo-37029.
2019-05-31 21:16:04 -05:00
Pablo Galindo 3a46d5c293
bpo-37108: Support super with methods that use positional-only arguments (GH-13695) 2019-05-31 12:07:56 +01:00
Zackery Spytz c7f803b08e bpo-36379: __ipow__ must be a ternaryfunc, not a binaryfunc (GH-13546)
If a type's __ipow__ method was implemented in C, attempting to use
the *modulo* parameter would cause crashes.


https://bugs.python.org/issue36379
2019-05-31 02:46:36 -07:00
Jeroen Demeyer 530f506ac9 bpo-36974: tp_print -> tp_vectorcall_offset and tp_reserved -> tp_as_async (GH-13464)
Automatically replace
tp_print -> tp_vectorcall_offset
tp_compare -> tp_as_async
tp_reserved -> tp_as_async
2019-05-30 19:13:39 -07:00
Jeroen Demeyer 37788bc23f bpo-36974: rename _FastCallKeywords -> _Vectorcall (GH-13653) 2019-05-30 15:11:22 +02:00
Jeroen Demeyer c145f3bfbe bpo-36974: remove _PyObject_HasFastCall (GH-13460) 2019-05-30 12:43:58 +02:00
Jeroen Demeyer 735e8afa9e bpo-36974: inherit the vectorcall protocol (GH-13498) 2019-05-30 12:43:19 +02:00
Antoine Pitrou ada319bb6d
bpo-32388: Remove cross-version binary compatibility requirement in tp_flags (GH-4944)
It is now allowed to add new fields at the end of the PyTypeObject struct without having to allocate a dedicated compatibility flag in tp_flags.

This will reduce the risk of running out of bits in the 32-bit tp_flags value.
2019-05-29 22:12:38 +02:00
Gregory P. Smith 0c2f930564
bpo-22385: Support output separators in hex methods. (#13578)
* bpo-22385: Support output separators in hex methods.

Also in binascii.hexlify aka b2a_hex.

The underlying implementation behind all hex generation in CPython uses the
same pystrhex.c implementation.  This adds support to bytes, bytearray,
and memoryview objects.

The binascii module functions exist rather than being slated for deprecation
because they return bytes rather than requiring an intermediate step through a
str object.

This change was inspired by MicroPython which supports sep in its binascii
implementation (and does not yet support the .hex methods).

https://bugs.python.org/issue22385
2019-05-29 11:46:58 -07:00
Jeroen Demeyer aacc77fbd7 bpo-36974: implement PEP 590 (GH-13185)
Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be>
Co-authored-by: Mark Shannon <mark@hotpy.org>
2019-05-29 20:31:52 +02:00
Inada Naoki 7d408697a9
remove unnecessary tp_dealloc (GH-13647) 2019-05-29 17:23:27 +09:00
Zackery Spytz 05f16416d9 bpo-26423: Fix possible overflow in wrap_lenfunc() (GH-13606)
Fix possible overflow in wrap_lenfunc() when
sizeof(long) < sizeof(Py_ssize_t) (e.g., 64-bit Windows).
2019-05-28 14:55:28 +02:00
Jeroen Demeyer eb65e2443a bpo-36922: implement PEP-590 Py_TPFLAGS_METHOD_DESCRIPTOR (GH-13338)
Co-authored-by: Mark Shannon <mark@hotpy.org>
2019-05-28 14:42:53 +02:00
Victor Stinner 331a6a56e9
bpo-36763: Implement the PEP 587 (GH-13592)
* Add a whole new documentation page:
  "Python Initialization Configuration"
* PyWideStringList_Append() return type is now PyStatus,
  instead of int
* PyInterpreterState_New() now calls PyConfig_Clear() if
  PyConfig_InitPythonConfig() fails.
* Rename files:

  * Python/coreconfig.c => Python/initconfig.c
  * Include/cpython/coreconfig.h => Include/cpython/initconfig.h
  * Include/internal/: pycore_coreconfig.h => pycore_initconfig.h

* Rename structures

  * _PyCoreConfig => PyConfig
  * _PyPreConfig => PyPreConfig
  * _PyInitError => PyStatus
  * _PyWstrList => PyWideStringList

* Rename PyConfig fields:

  * use_module_search_paths => module_search_paths_set
  * module_search_path_env => pythonpath_env

* Rename PyStatus field: _func => func
* PyInterpreterState: rename core_config field to config
* Rename macros and functions:

  * _PyCoreConfig_SetArgv() => PyConfig_SetBytesArgv()
  * _PyCoreConfig_SetWideArgv() => PyConfig_SetArgv()
  * _PyCoreConfig_DecodeLocale() => PyConfig_SetBytesString()
  * _PyInitError_Failed() => PyStatus_Exception()
  * _Py_INIT_ERROR_TYPE_xxx enums => _PyStatus_TYPE_xxx
  * _Py_UnixMain() => Py_BytesMain()
  * _Py_ExitInitError() => Py_ExitStatusException()
  * _Py_PreInitializeFromArgs() => Py_PreInitializeFromBytesArgs()
  * _Py_PreInitializeFromWideArgs() => Py_PreInitializeFromArgs()
  * _Py_PreInitialize() => Py_PreInitialize()
  * _Py_RunMain() => Py_RunMain()
  * _Py_InitializeFromConfig() => Py_InitializeFromConfig()
  * _Py_INIT_XXX() => _PyStatus_XXX()
  * _Py_INIT_FAILED() => _PyStatus_EXCEPTION()

* Rename 'err' PyStatus variables to 'status'
* Convert RUN_CODE() macro to config_run_code() static inline function
* Remove functions:

  * _Py_InitializeFromArgs()
  * _Py_InitializeFromWideArgs()
  * _PyInterpreterState_GetCoreConfig()
2019-05-27 16:39:22 +02:00
Antoine Pitrou 91f4380ced
bpo-36785: PEP 574 implementation (GH-7076) 2019-05-26 17:10:09 +02:00
Julien Palard 180dc1b0f4 bpo-28866: No type cache for types with specialized mro, invalidation is hard. (#13157)
* No type cache for types with specialized mro, invalidation is hard.

* FIX: Don't disable method cache custom types that do not implement mro().

* fixing implem.

* Avoid storing error flags, also decref.

* news entry

* Clear as soon as we're getting an error.

* FIX: Reference leak.
2019-05-26 15:25:47 +01:00
Michael J. Sullivan 47dd2f9fd8 bpo-37017: PyObject_CallMethodObjArgs uses LOAD_METHOD optimization (GH-13516)
Update PyObject_CallMethodObjArgs and _PyObject_CallMethodIdObjArgs
to use _PyObject_GetMethod to avoid creating a bound method object
in many cases.

On a microbenchmark of PyObject_CallMethodObjArgs calling a method on
an interpreted Python class, this optimization resulted in a 1.7x
speedup.
2019-05-26 16:23:33 +09:00
Victor Stinner a9f05d69cc
bpo-37032: Add CodeType.replace() method (GH-13542) 2019-05-24 23:57:23 +02:00
Cheryl Sabella c95c93d4eb
bpo-20285: Improve help docs for object (GH-4759) 2019-05-24 06:43:29 -04:00
Steve Dower b82e17e626
bpo-36842: Implement PEP 578 (GH-12613)
Adds sys.audit, sys.addaudithook, io.open_code, and associated C APIs.
2019-05-23 08:45:22 -07:00
Alexey Izbyshev 6bc5917903 bpo-35091: Objects/listobject.c: Replace overflow checks in gallop fu… (GH-10202)
…nctions with asserts

The actual overflow can never happen because of the following:
* The size of a list can't be greater than PY_SSIZE_T_MAX / sizeof(PyObject*).
* The size of a pointer on all supported plaftorms is at least 4 bytes.
* ofs is positive and less than the list size at the beginning of each iteration.





https://bugs.python.org/issue35091
2019-05-22 17:01:08 -07:00
Jeroen Demeyer 77aa396bb9 bpo-36907: fix refcount bug in _PyStack_UnpackDict() (GH-13381) 2019-05-22 13:09:35 +02:00
Zackery Spytz 53d378c812 closes bpo-36951: Correct some types in the type_members struct in typeobject.c. (GH-13403) 2019-05-19 17:26:35 -07:00
Serhiy Storchaka a5119e7d75
bpo-36957: Add _PyLong_Rshift() and _PyLong_Lshift(). (GH-13416) 2019-05-19 14:14:38 +03:00
David Carlier 27ee0f8551 Fix couple of dead code paths (GH-7418) 2019-05-17 19:46:22 -04:00
Victor Stinner 871ff77c1c
bpo-36763: Add _PyInitError functions (GH-13395)
* Add _PyInitError functions:

  * _PyInitError_Ok()
  * _PyInitError_Error()
  * _PyInitError_NoMemory()
  * _PyInitError_Exit()
  * _PyInitError_IsError()
  * _PyInitError_IsExit()
  * _PyInitError_Failed()

* frozenmain.c and _testembed.c now use functions rather than macros.
* Move _Py_INIT_xxx() macros to the internal API.
* Move _PyWstrList_INIT macro to the internal API.
2019-05-17 23:54:00 +02:00
Victor Stinner b16b4e4592
bpo-36763: Add PyMemAllocatorName (GH-13387)
* Add PyMemAllocatorName enum
* _PyPreConfig.allocator type becomes PyMemAllocatorName, instead of
  char*
* Remove _PyPreConfig_Clear()
* Add _PyMem_GetAllocatorName()
* Rename _PyMem_GetAllocatorsName() to
  _PyMem_GetCurrentAllocatorName()
* Remove _PyPreConfig_SetAllocator(): just call
  _PyMem_SetupAllocators() directly, we don't have do reallocate the
  configuration with the new allocator anymore!
* _PyPreConfig_Write() parameter becomes const, as it should be in
  the first place!
2019-05-17 15:20:52 +02:00
Jeroen Demeyer a8b46944d7 Fix typo in _PyMethodDef_RawFastCallKeywords error message (GH-13343) 2019-05-17 12:21:35 +02:00
Zackery Spytz 14514d9084 bpo-36946: Fix possible signed integer overflow when handling slices. (GH-13375)
The final addition (cur += step) may overflow, so use size_t for "cur".
"cur" is always positive (even for negative steps), so it is safe to use
size_t here.

Co-Authored-By: Martin Panter <vadmium+py@gmail.com>
2019-05-17 10:13:03 +03:00