Commit Graph

19 Commits

Author SHA1 Message Date
Eric Snow
a9c6e0618f
gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205)
Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules.  We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
2023-05-05 21:11:27 +00:00
Victor Stinner
c340cbb7f7
gh-99300: Use Py_NewRef() in Modules/ directory ()
Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and
Py_XNewRef() in test C files of the Modules/ directory.
2022-11-14 13:44:56 +01:00
Serhiy Storchaka
e9ac890c02
gh-98740: Fix validation of conditional expressions in RE (GH-98764)
In very rare circumstances the JUMP opcode could be confused with the
argument of the opcode in the "then" part which doesn't end with the
JUMP opcode. This led to incorrect detection of the final JUMP opcode
and incorrect calculation of the size of the subexpression.

NOTE: Changed return value of functions _validate_inner() and
_validate_charset() in Modules/_sre/sre.c.  Now they return 0 on success,
-1 on failure, and 1 if the last op is JUMP (which usually is a failure).
Previously they returned 1 on success and 0 on failure.
2022-11-03 09:23:46 +02:00
Serhiy Storchaka
75a6fadf36
gh-91524: Speed up the regular expression substitution ()
Functions re.sub() and re.subn() and corresponding re.Pattern methods
are now 2-3 times faster for replacement strings containing group references.

Closes 

Primarily authored by serhiy-storchaka Serhiy Storchaka
Minor-cleanups-by: Gregory P. Smith [Google] <greg@krypto.org>
2022-10-23 15:57:30 -07:00
Victor Stinner
1863302d61
gh-97669: Create Tools/build/ directory ()
Create Tools/build/ directory. Move the following scripts from
Tools/scripts/ to Tools/build/:

* check_extension_modules.py
* deepfreeze.py
* freeze_modules.py
* generate_global_objects.py
* generate_levenshtein_examples.py
* generate_opcode_h.py
* generate_re_casefix.py
* generate_sre_constants.py
* generate_stdlib_module_names.py
* generate_token.py
* parse_html5_entities.py
* smelly.py
* stable_abi.py
* umarshal.py
* update_file.py
* verify_ensurepip_wheels.py

Update references to these scripts.
2022-10-17 12:01:00 +02:00
Erlend E. Aasland
f07adf82f3
gh-90928: Improve static initialization of keywords tuple in AC () 2022-08-13 12:09:40 +02:00
Eric Snow
6f6a4e6cc5
gh-90928: Statically Initialize the Keywords Tuple in Clinic-Generated Code (gh-95860)
We only statically initialize for core code and builtin modules.  Extension modules still create
the tuple at runtime.  We'll solve that part of interpreter isolation separately.

This change includes generated code. The non-generated changes are in:

* Tools/clinic/clinic.py
* Python/getargs.c
* Include/cpython/modsupport.h
* Makefile.pre.in (re-generate global strings after running clinic)
* very minor tweaks to Modules/_codecsmodule.c and Python/Python-tokenize.c

All other changes are generated code (clinic, global strings).
2022-08-11 15:25:49 -06:00
Gregory P. Smith
4beee0c7b0
gh-91404: Revert "bpo-23689: re module, fix memory leak when a match is terminated by a signal or allocation failure (GH-32283) ()
Revert "bpo-23689: re module, fix memory leak when a match is terminated by a signal or memory allocation failure (GH-32283)"

This reverts commit 6e3eee5c11.

Manual fixups to increase the MAGIC number and to handle conflicts with
a couple of changes that landed after that.

Thanks for reviews by Ma Lin and Serhiy Storchaka.
2022-06-17 01:19:44 -07:00
Serhiy Storchaka
6fd4c8ec77
gh-93741: Add private C API _PyImport_GetModuleAttrString() (GH-93742)
It combines PyImport_ImportModule() and PyObject_GetAttrString()
and saves 4-6 lines of code on every use.

Add also _PyImport_GetModuleAttr() which takes Python strings as arguments.
2022-06-14 07:15:26 +03:00
Miro Hrončok
16a7e4a0b7
gh-92728: Restore re.template, but deprecate it (GH-93161)
Revert "bpo-47211: Remove function re.template() and flag re.TEMPLATE (GH-32300)"

This reverts commit b09184bf05.
2022-05-25 09:05:35 +03:00
Victor Stinner
b270b82f11
gh-91320: Argument Clinic uses _PyCFunction_CAST() ()
Replace "(PyCFunction)(void(*)(void))func" cast with
_PyCFunction_CAST(func).
2022-05-03 20:25:41 +02:00
Serhiy Storchaka
a055dac0b4
gh-91583: AC: Fix regression for functions with defining_class (GH-91739)
Argument Clinic now generates the same efficient code as before
adding the defining_class parameter.
2022-04-30 13:15:02 +03:00
Serhiy Storchaka
f703c96cf0
gh-91870: Remove unsupported SRE opcode CALL (GH-91872)
It was initially added to support atomic groups, but that
support was never fully implemented, and CALL was only left
in the compiler, but not interpreter and parser.

ATOMIC_GROUP is now used to support atomic groups.
2022-04-26 21:07:25 +03:00
Ma Lin
e4e8895ae3
gh-91616: re module, fix .fullmatch() mismatch when using Atomic Grouping or Possessive Quantifiers (GH-91681)
These jumps should use DO_JUMP0() instead of DO_JUMP():
- JUMP_POSS_REPEAT_1
- JUMP_POSS_REPEAT_2
- JUMP_ATOMIC_GROUP
2022-04-19 17:49:36 +03:00
Ma Lin
a29f858124
bpo-47256: Increasing the depth of backtracking in RE (GH-32411)
Limit the maximum capturing group to 2**30-1 on 64-bit platforms
(it was 2**31-1). No change on 32-bit platforms (2**28-1).

It allows to reduce the size of SRE(match_context):
- On 32 bit platform: 36 bytes, no change.  (msvc2022)
- On 64 bit platform: 72 bytes -> 56 bytes. (msvc2022/gcc9.4)

which leads to increasing the depth of backtracking.
2022-04-18 16:50:40 +03:00
Brandt Bucher
1b34b5687b
gh-91404: Use computed gotos and reduce indirection in re () 2022-04-15 09:26:44 -07:00
Serhiy Storchaka
474fdbe9e4
bpo-47152: Automatically regenerate sre_constants.h (GH-91439)
* Move the code for generating Modules/_sre/sre_constants.h from
  Lib/re/_constants.py into a separate script
  Tools/scripts/generate_sre_constants.py.
* Add target `regen-sre` in the makefile.
* Make target `regen-all` depending on `regen-sre`.
2022-04-12 18:34:06 +03:00
Serhiy Storchaka
b09184bf05
bpo-47211: Remove function re.template() and flag re.TEMPLATE (GH-32300)
They were undocumented and never working.
2022-04-06 19:53:50 +03:00
Serhiy Storchaka
1578f06c1c
bpo-47152: Move sources of the _sre module into a subdirectory (GH-32290) 2022-04-04 10:53:26 +03:00