f9bd05e83e
bpo-40521: Empty frozenset is no longer a singleton (GH-21085)
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* Revert "bpo-40521: Make the empty frozenset per interpreter (GH-21068)"
This reverts commit 261cfedf76
2020-06-23 17:42:55 +02:00
261cfedf76
bpo-40521: Make the empty frozenset per interpreter (GH-21068)
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Each interpreter now has its own empty frozenset singleton.
2020-06-23 14:07:52 +02:00
2cc9b8486d
Improve code clarity for the set lookup logic (GH-20028)
2020-05-10 14:53:29 -07:00
d699d5e617
Remove out-of-date comment (GH-19886)
2020-05-03 11:25:46 -07:00
3dd2157feb
Simplify set entry insertion logic. (GH-19881)
2020-05-03 04:51:05 -07:00
ae00a5a885
bpo-40428: Remove PyTuple_ClearFreeList() function (GH-19769)
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Remove the following function from the C API:
* PyAsyncGen_ClearFreeLists()
* PyContext_ClearFreeList()
* PyDict_ClearFreeList()
* PyFloat_ClearFreeList()
* PyFrame_ClearFreeList()
* PyList_ClearFreeList()
* PySet_ClearFreeList()
* PyTuple_ClearFreeList()
Make these functions private, move them to the internal C API and
change their return type to void.
Call explicitly PyGC_Collect() to free all free lists.
Note: PySet_ClearFreeList() did nothing.
2020-04-29 02:29:20 +02:00
4a21e57fe5
bpo-40268: Remove unused structmember.h includes (GH-19530)
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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
e5014be049
bpo-40268: Remove a few pycore_pystate.h includes (GH-19510)
2020-04-14 17:52:15 +02:00
48b069a003
bpo-39481: Implementation for PEP 585 ( #18239 )
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This implements things like `list[int]`,
which returns an object of type `types.GenericAlias`.
This object mostly acts as a proxy for `list`,
but has attributes `__origin__` and `__args__`
that allow recovering the parts (with values `list` and `(int,)`.
There is also an approximate notion of type variables;
e.g. `list[T]` has a `__parameters__` attribute equal to `(T,)`.
Type variables are objects of type `typing.TypeVar`.
2020-04-07 09:50:06 -07:00
1c60567b9a
bpo-37207: Use PEP 590 vectorcall to speed up frozenset() (GH-19053)
2020-03-18 18:30:50 +01:00
6ff79f6582
bpo-37207: Use PEP 590 vectorcall to speed up set() constructor (GH-19019)
2020-03-16 18:17:38 +01:00
557287075c
bpo-39573: Use Py_IS_TYPE() macro to check for types (GH-18809)
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Co-authored-by: Victor Stinner <vstinner@python.org>
2020-03-06 23:53:17 +01:00
2a4903fcce
bpo-38631: Add _Py_NO_RETURN to functions calling Py_FatalError() (GH-18278)
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Add _Py_NO_RETURN to functions calling Py_FatalError():
* _PyObject_AssertFailed()
* dummy_dealloc()
* faulthandler_fatal_error_thread()
* none_dealloc()
* notimplemented_dealloc()
2020-01-30 13:09:11 +01:00
41c57b3353
bpo-37994: Fix silencing all errors if an attribute lookup fails. (GH-15630)
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Only AttributeError should be silenced.
2019-09-01 12:03:39 +03:00
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
bed4817d52
Make PyXXX_Fini() functions private (GH-15531)
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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
1f11cf9521
bpo-37219: Remove erroneous optimization for differencing an empty set (GH-13965)
2019-06-11 01:15:24 -07:00
530f506ac9
bpo-36974: tp_print -> tp_vectorcall_offset and tp_reserved -> tp_as_async (GH-13464)
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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
351c67416b
bpo-35983: skip trashcan for subclasses (GH-11841)
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Add new trashcan macros to deal with a double deallocation that could occur when the `tp_dealloc` of a subclass calls the `tp_dealloc` of a base class and that base class uses the trashcan mechanism.
Patch by Jeroen Demeyer.
2019-05-10 19:21:10 +02:00
bb86bf4c4e
bpo-35444: Unify and optimize the helper for getting a builtin object. (GH-11047)
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This speeds up pickling of some iterators.
This fixes also error handling in pickling methods when fail to
look up builtin "getattr".
2018-12-11 08:28:18 +02:00
bcda8f1d42
bpo-35081: Add Include/internal/pycore_object.h (GH-10640)
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Move _PyObject_GC_TRACK() and _PyObject_GC_UNTRACK() from
Include/objimpl.h to Include/internal/pycore_object.h.
2018-11-21 22:27:47 +01:00
621cebe81b
bpo-35081: Rename internal headers (GH-10275)
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Rename Include/internal/ headers:
* pycore_hash.h -> pycore_pyhash.h
* pycore_lifecycle.h -> pycore_pylifecycle.h
* pycore_mem.h -> pycore_pymem.h
* pycore_state.h -> pycore_pystate.h
Add missing headers to Makefile.pre.in and PCbuild:
* pycore_condvar.h.
* pycore_hamt.h
* pycore_pyhash.h
2018-11-12 16:53:38 +01:00
f9ec1b9f52
Neaten the code without any algorithmic change. (GH-10466)
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Remove unneeded assertion (we already know so is a PySetObject *).
2018-11-11 14:35:47 -08:00
cf5863faab
Optimize set.pop() to advance a pointer instead of indexing. (GH-10429)
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Gives approx 20% speed-up using clang depending on the number of elements in the set (the less dense the set, the more the speed-up).
Uses the same entry++ logic used elsewhere in the setobject.c code.
2018-11-09 02:31:56 -08:00
27e2d1f219
bpo-35081: Add pycore_ prefix to internal header files (GH-10263)
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* Rename Include/internal/ header files:
* pyatomic.h -> pycore_atomic.h
* ceval.h -> pycore_ceval.h
* condvar.h -> pycore_condvar.h
* context.h -> pycore_context.h
* pygetopt.h -> pycore_getopt.h
* gil.h -> pycore_gil.h
* hamt.h -> pycore_hamt.h
* hash.h -> pycore_hash.h
* mem.h -> pycore_mem.h
* pystate.h -> pycore_state.h
* warnings.h -> pycore_warnings.h
* PCbuild project, Makefile.pre.in, Modules/Setup: add the
Include/internal/ directory to the search paths of header files.
* Update includes. For example, replace #include "internal/mem.h"
with #include "pycore_mem.h".
2018-11-01 00:52:28 +01:00
6395844e6a
bpo-34573: Simplify __reduce__() of set and dict iterators. (GH-9050)
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Simplify the pickling of set and dictionary objects iterators by consuming
the iterator into a list with PySequence_List.
2018-10-20 01:43:33 +01:00
6c7d67ce83
bpo-1621: Avoid signed integer overflow in set_table_resize(). (GH-9059)
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Address a C undefined behavior signed integer overflow issue in set object table resizing. Our -fwrapv compiler flag and practical reasons why sets are unlikely to get this large should mean this was never an issue but it was incorrect code that generates code analysis warnings.
<!-- issue-number: [bpo-1621](https://www.bugs.python.org/issue1621 ) -->
https://bugs.python.org/issue1621
<!-- /issue-number -->
2018-09-11 16:18:01 -07:00
491bbedc20
bpo-33391: Fix refleak in set_symmetric_difference (GH-6670)
2018-05-02 18:29:10 +09:00
55edd0c185
bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. (GH-6030)
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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
fa78806041
Removed unnecesssary bit inversion which doesn't improve dispersion statistics ( #5235 )
2018-01-18 13:23:27 -08:00
b44c5169f6
bpo-26163: Frozenset hash improvement ( #5194 )
2018-01-16 01:30:26 -08:00
3329992e31
bpo-29476: Simplify set_add_entry() ( #5175 )
2018-01-14 10:20:13 -08:00
13ad3b7a82
bpo-31462: Remove trailing whitespaces. ( #3564 )
2017-09-14 09:38:36 +03:00
2ebc5ce42a
bpo-30860: Consolidate stateful runtime globals. ( #3397 )
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* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals
Other globals are excluded (see globals.txt and check-c-globals.py).
2017-09-07 23:51:28 -06:00
05351c1bd8
Revert "bpo-30860: Consolidate stateful runtime globals." ( #3379 )
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Windows buildbots started failing due to include-related errors.
2017-09-05 21:43:08 -07:00
76d5abc868
bpo-30860: Consolidate stateful runtime globals. ( #2594 )
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* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals
Other globals are excluded (see globals.txt and check-c-globals.py).
2017-09-05 18:26:16 -07:00
64263dfd18
Fix terminology in comment and add more design rationale. ( #3335 )
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* Fix terminology in comment and add more design rationale.
* Fix extra space
2017-09-04 18:54:16 -07:00
a6296d34a4
bpo-31095: fix potential crash during GC (GH-2974)
2017-08-24 14:55:17 +09:00
6cca5c8459
bpo-30592: Fixed error messages for some builtins. ( #1996 )
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Error messages when pass keyword arguments to some builtins that
don't support keyword arguments contained double parenthesis: "()()".
The regression was introduced by bpo-30534.
2017-06-08 14:41:19 +03:00
bf623ae884
bpo-30061: Check if PyObject_Size()/PySequence_Size()/PyMapping_Size() ( #1096 )
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raised an error.
Replace them with using concrete types API that never fails if appropriate.
2017-04-19 20:03:52 +03:00
e82cf8675b
bpo-29949: Fix set memory usage regression (GH-943)
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Revert "Minor factoring: move redundant resize scaling logic into the resize function."
This reverts commit 4897300276
2017-04-01 17:20:25 +09:00
68a001dd59
Issue #29460 : _PyArg_NoKeywords(), _PyArg_NoStackKeywords() and
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_PyArg_NoPositional() now are macros.
2017-02-06 10:41:46 +02:00
5cd87a8d61
Reduce load factor (from 66% to 60%) to improve effectiveness of linear probing.
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Decreased density gives better collision statistics (average of 2.5 probes in a
full table versus 3.0 previously) and fewer occurences of starting a second
possibly overlapping sequence of 10 linear probes. Makes resizes a little more
frequent but each with less work (fewer insertions and fewer collisions).
2017-02-04 02:43:42 -08:00
e1af6964b4
Remove unnecessary variables.
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* so->used never gets changed during a resize
* so->filled only changes when dummies are present and being eliminated
2017-02-02 08:24:48 -08:00
5ab81d787f
Issue #28959 : Added private macro PyDict_GET_SIZE for retrieving the size of dict.
2016-12-16 16:18:57 +02:00
85b0f5beb1
Added the const qualifier to char* variables that refer to readonly internal
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UTF-8 represenatation of Unicode objects.
2016-11-20 10:16:47 +02:00
06515833fe
Replaced outdated macros _PyUnicode_AsString and _PyUnicode_AsStringAndSize
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with PyUnicode_AsUTF8 and PyUnicode_AsUTF8AndSize.
2016-11-20 09:13:07 +02:00
4103e4dfbc
Issue #28071 : Add early-out for differencing from an empty set.
2016-09-11 22:02:28 -07:00
8421d714d0
Removed unused initialization and the uninteresting comment.
2016-04-29 01:37:05 -07:00
fa070298e9
Issue #26880 : Removed redundant checks in set.__init__.
2016-04-29 11:31:52 +03:00
ab479c49d3
Issue #26494 : Fixed crash on iterating exhausting iterators.
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Affected classes are generic sequence iterators, iterators of str, bytes,
bytearray, list, tuple, set, frozenset, dict, OrderedDict, corresponding
views and os.scandir() iterator.
2016-03-30 20:41:15 +03:00
fbb1c5ee06
Issue #26494 : Fixed crash on iterating exhausting iterators.
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Affected classes are generic sequence iterators, iterators of str, bytes,
bytearray, list, tuple, set, frozenset, dict, OrderedDict, corresponding
views and os.scandir() iterator.
2016-03-30 20:40:02 +03:00
3625af5f21
Moved misplaced functions to the section for C API functions.
2016-03-27 01:15:07 -07:00
2c257ab0f8
Responsibility for argument checking belongs in set.__init__() rather than set.__new__().
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See dict.__new__() and list.__new__() for comparison. Neither of those examine or touch
args or kwds. That work is done in the __init__() methods.
2016-03-26 04:10:11 -07:00
b72e21b9ab
Speed-up construction of empty sets by approx 12-14%.
2016-03-25 02:29:59 -07:00
f50215412c
Add early-out for the common case where kwds is NULL (gives 1.1% speedup).
2016-02-04 02:46:16 -08:00
3e47a1337c
merge 3.5
2016-01-01 11:56:35 -06:00
4e3dd51396
merge 3.4
2016-01-01 11:56:16 -06:00
630329e4ea
merge 3.3
2016-01-01 11:55:47 -06:00
0e617e22f0
remove some copyright notices supserseded by the toplevel ones
2016-01-01 11:53:47 -06:00
a9406e77fa
Issue #25421 : __sizeof__ methods of builtin types now use dynamic basic size.
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This allows sys.getsize() to work correctly with their subclasses with
__slots__ defined.
2015-12-19 20:07:11 +02:00
5c4064e8bd
Issue #25421 : __sizeof__ methods of builtin types now use dynamic basic size.
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This allows sys.getsize() to work correctly with their subclasses with
__slots__ defined.
2015-12-19 20:05:25 +02:00
e4495877dd
Minor tweek. Counting down rather than up reduces register pressure.
2015-12-15 00:42:30 -08:00
86d322f020
Undo inadvertent line swap
2015-12-13 19:27:17 -08:00
5088f6005f
Hoist constant expressions (so->table and so->mask) out of the inner-loop.
2015-12-13 18:45:01 -08:00
66f6238fca
Add assertion to verify the pre-condition in the comments.
2015-11-17 20:58:43 -08:00
6019c8ced0
Issue #25629 : Move set fill/used updates out of inner loop
2015-11-17 08:28:07 -08:00
4148195c45
Move the active entry multiplication to later in the hash calculation
2015-08-07 00:43:39 -07:00
b501a27ad8
Restore frozenset hash caching removed in cf707dd190a9
2015-08-06 22:15:22 -07:00
a286a51ae1
Fix comment typo
2015-08-01 11:07:11 -07:00
36c0500990
Tweak the comments
2015-08-01 10:57:42 -07:00
fbffdef47d
Issue #24762 : Speed-up frozenset_hash() and greatly beef-up the comments.
2015-08-01 09:53:00 -07:00
daffc916aa
Issue #24681 : Move the most likely test first in set_add_entry().
2015-07-31 07:58:56 -07:00
70559b5c20
Issue #24681 : Move the store of so->table to the code block where it is used.
2015-07-23 07:42:23 -04:00
ff9e18a863
Issue #24583 : Consolidate previous set object updates into a single function
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with a single entry point, named exit points at the bottom, more self-evident
refcount adjustments, and a comment describing why the pre-increment was
necessary at all.
2015-07-20 07:34:05 -04:00
482c05cbb5
Issue #24583 : Fix refcount leak.
2015-07-20 01:23:32 -04:00
061091a7c5
Issue #24583 : Fix crash when set is mutated while being updated.
2015-07-15 23:54:02 -07:00
d702044bcd
merge
2015-07-15 23:52:29 -07:00
a3626bc5bd
Issue #24583 : Fix crash when set is mutated while being updated.
2015-07-15 23:50:14 -07:00
5d2385ff6f
Neaten-up a little bit.
2015-07-08 11:52:27 -07:00
9632a7d735
Issue 24581: Revert c9782a9ac031 pending a stronger test for mutation during iteration.
2015-07-07 15:29:24 -07:00
11ce8e6c37
Minor bit of factoring-out common code.
2015-07-06 19:08:49 -07:00
3dbc11cadd
Tighten-up code in the set iterator to use an entry pointer rather than indexing.
2015-07-06 19:03:01 -07:00
ef6bd7d963
Tighten-up code in set_next() to use an entry pointer rather than indexing.
2015-07-06 08:43:37 -07:00
b48d6a63ff
Bring related functions add/contains/discard together in the code.
2015-07-05 16:27:44 -07:00
73799b181e
Change add/contains/discard calls to pass the key and hash instead of an entry struct.
2015-07-05 16:06:10 -07:00
dc28d5a198
Clean-up call patterns for add/contains/discard to better match the caller's needs.
2015-07-05 10:03:20 -07:00
ac2ef65c32
Make the unicode equality test an external function rather than in-lining it.
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The real benefit of the unicode specialized function comes from
bypassing the overhead of PyObject_RichCompareBool() and not
from being in-lined (especially since there was almost no shared
data between the caller and callee). Also, the in-lining was
having a negative effect on code generation for the callee.
2015-07-04 16:04:44 -07:00
e186c7674c
Make sure the dummy percentage calculation won't overflow.
2015-07-04 11:28:35 -07:00
c2480dc0c4
Minor cleanup.
2015-07-04 08:46:31 -07:00
b322326f48
Minor nit: Make the style of checking error return values more consistent.
2015-07-03 23:37:16 -07:00
4897300276
Minor factoring: move redundant resize scaling logic into the resize function.
2015-07-03 20:00:03 -07:00
3c1f52e829
Call set_lookkey() directly to avoid unnecessary memory spills and reloads.
2015-07-03 18:31:09 -07:00
15f0869609
Move insertion resize logic into set_insert_key().
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Simplifies the code a little bit and does the resize check
only when a new key is added (giving a small speed up in
the case where the key already exists).
Fixes possible bug in set_merge() where the set_insert_key()
call relies on a big resize at the start to make enough room
for the keys but is vulnerable to a comparision callback that
could cause the table to shrink in the middle of the merge.
Also, changed the resize threshold from two-thirds of the
mask+1 to just two-thirds. The plus one offset gave no
real benefit (afterall, the two-thirds mark is just a
heuristic and isn't a precise cut-off).
2015-07-03 17:21:17 -07:00
2eff9e9441
Minor refactoring. Move reference count logic into function that adds entry.
2015-06-27 22:03:35 -07:00
91672617d5
Minor tweeak to tighten the inner-loop.
2015-06-26 02:50:21 -07:00
38bb95e49d
Minor code cleanup.
2015-06-24 01:22:19 -07:00
7e3592dca6
Harmonize the bottom of the outer loop with its entry point
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giving a small simplification. Timings show that hash
pre-check seems only benefit the inner-loop (the linear probes).
2015-06-21 10:47:20 -07:00
6ee588f14e
Restore quick exit (no freeslot check) for common case (found null on first probe).
2015-06-20 21:39:51 -07:00
7aa5341164
Reverting my previous commit.
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Something went horribly wrong when I was doing `hg rebase`.
2015-05-30 10:57:56 -04:00
Raymond Hettinger
Victor Stinner
Guido van Rossum
Dong-hee Na
Andy Lester
Serhiy Storchaka
Victor Stinner
Jeroen Demeyer
Sergey Fedoseev
lekma
Siddhesh Poyarekar
Eric Snow
INADA Naoki
Raymond Hettinger
Benjamin Peterson
Yury Selivanov