Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity
cpython/Python
History
Eric Snow 81c72044a1
bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 
We're no longer using _Py_IDENTIFIER() (or _Py_static_string()) in any core CPython code.  It is still used in a number of non-builtin stdlib modules.

The replacement is: PyUnicodeObject (not pointer) fields under _PyRuntimeState, statically initialized as part of _PyRuntime.  A new _Py_GET_GLOBAL_IDENTIFIER() macro facilitates lookup of the fields (along with _Py_GET_GLOBAL_STRING() for non-identifier strings).

https://bugs.python.org/issue46541#msg411799 explains the rationale for this change.

The core of the change is in:

* (new) Include/internal/pycore_global_strings.h - the declarations for the global strings, along with the macros
* Include/internal/pycore_runtime_init.h - added the static initializers for the global strings
* Include/internal/pycore_global_objects.h - where the struct in pycore_global_strings.h is hooked into _PyRuntimeState
* Tools/scripts/generate_global_objects.py - added generation of the global string declarations and static initializers

I've also added a --check flag to generate_global_objects.py (along with make check-global-objects) to check for unused global strings.  That check is added to the PR CI config.

The remainder of this change updates the core code to use _Py_GET_GLOBAL_IDENTIFIER() instead of _Py_IDENTIFIER() and the related _Py*Id functions (likewise for _Py_GET_GLOBAL_STRING() instead of _Py_static_string()).  This includes adding a few functions where there wasn't already an alternative to _Py*Id(), replacing the _Py_Identifier * parameter with PyObject *.

The following are not changed (yet):

* stop using _Py_IDENTIFIER() in the stdlib modules
* (maybe) get rid of _Py_IDENTIFIER(), etc. entirely -- this may not be doable as at least one package on PyPI using this (private) API
* (maybe) intern the strings during runtime init

https://bugs.python.org/issue46541
 		2022-02-08 13:39:07 -07:00
..
clinic bpo-46328: Add sys.exception() (GH-30514) 2022-01-13 12:35:58 +00:00
deepfreeze bpo-45696: Deep-freeze selected modules (GH-29118) 2021-11-10 18:01:53 -08:00
frozen_modules bpo-45020: Drop the frozen .h files from the repo. (gh-28392) 2021-09-16 14:20:52 -06:00
Python-ast.c bpo-46289: Make conversion of FormattedValue not optional on ASDL (GH-30467) 2022-01-07 13:05:28 -08:00
Python-tokenize.c bpo-45434: Mark the PyTokenizer C API as private (GH-28924) 2021-10-13 17:22:14 +02:00
README
…
_warnings.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
adaptive.md bpo-44854: Remove trailing whitespaces (GH-27689) 2021-08-09 21:32:54 +03:00
asdl.c bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933) 2021-03-23 20:47:40 +01:00
ast.c bpo-45292: [PEP-654] add except* (GH-29581) 2021-12-14 16:48:15 +00:00
ast_opt.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
ast_unparse.c bpo-43892: Make match patterns explicit in the AST (GH-25585) 2021-04-28 22:58:44 -07:00
bltinmodule.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
bootstrap_hash.c bpo-46303: Move fileutils.h private functions to internal C API (GH-30484) 2022-01-11 11:56:16 +01:00
ceval.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
ceval_gil.h bpo-43268: Pass interp rather than tstate to internal functions (GH-24580) 2021-02-19 15:10:45 +01:00
codecs.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
compile.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
condvar.h bpo-44740: Lowercase "internet" and "web" where appropriate. (#27378) 2021-07-27 00:11:55 +02:00
context.c bpo-46417: Clear more static types (GH-30796) 2022-01-22 18:55:48 +01:00
dtoa.c bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914) 2021-10-13 19:25:53 +02:00
dup2.c bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
dynamic_annotations.c bpo-32241: Add the const qualifire to declarations of umodifiable strings. (#4748) 2017-12-12 13:55:04 +02:00
dynload_hpux.c bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX (GH-27857) 2021-09-08 14:43:00 +02:00
dynload_shlib.c bpo-43895: Remove an unnecessary cache of shared object handles (GH-25487) 2021-07-07 16:26:06 -07:00
dynload_stub.c
…
dynload_win.c bpo-45582: Port getpath[p].c to Python (GH-29041) 2021-12-03 00:08:42 +00:00
errors.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
fileutils.c bpo-46362: Ensure ntpath.abspath() uses the Windows API correctly (GH-30571) 2022-01-13 23:35:42 +00:00
formatter_unicode.c bpo-35134: Add Include/cpython/longobject.h (GH-29044) 2021-10-19 02:04:52 +02:00
frame.c Pass reference to func, as well as args, when pushing frame. (GH-31100) 2022-02-03 18:36:28 +00:00
frozen.c bpo-46608: exclude marshalled-frozen data if deep-freezing to save 300 KB space (GH-31074) 2022-02-04 09:57:03 -08:00
frozenmain.c bpo-44131: Py_FrozenMain() uses PyConfig_SetBytesArgv() (GH-26201) 2021-05-20 12:08:05 +02:00
future.c bpo-38605: Revert making 'from __future__ import annotations' the default (GH-25490) 2021-04-21 12:41:19 +01:00
getargs.c bpo-20291: Fix MSVC warnings in getargs.c (GH-27211) 2021-07-17 14:09:18 +03:00
getcompiler.c closes bpo-43278: remove unnecessary leading '\n' from COMPILER when build with GCC/Clang (GH-24606) 2021-02-25 20:24:21 -08:00
getcopyright.c Update copyright year to 2022. (GH-30335) 2022-01-02 12:08:48 -08:00
getopt.c bpo-40527: Fix command line argument parsing (GH-19955) 2020-05-06 22:22:17 +09:00
getplatform.c bpo-32150: Expand tabs to spaces in C files. (#4583) 2017-11-28 17:56:10 +02:00
getversion.c bpo-43931: Export Python version as API data (GH-25577) 2021-12-09 17:52:05 -08:00
hamt.c bpo-46417: Clear more static types (GH-30796) 2022-01-22 18:55:48 +01:00
hashtable.c bpo-41061: Fix incorrect expressions in hashtable (GH-21028) 2020-06-22 00:41:48 -07:00
import.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
importdl.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
importdl.h PEP 489: Multi-phase extension module initialization 2015-05-23 22:24:10 +10:00
initconfig.c bpo-45582: Port getpath[p].c to Python (GH-29041) 2021-12-03 00:08:42 +00:00
makeopcodetargets.py bpo-43760: Check for tracing using 'bitwise or' instead of branch in dispatch. (GH-28723) 2021-10-05 11:01:11 +01:00
marshal.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
modsupport.c bpo-1635741: Add PyModule_AddObjectRef() function (GH-23122) 2020-11-04 13:59:15 +01:00
mysnprintf.c bpo-36020: Require vsnprintf() to build Python (GH-20899) 2020-06-16 00:54:44 +02:00
mystrtoul.c bpo-35134: Add Include/cpython/longobject.h (GH-29044) 2021-10-19 02:04:52 +02:00
opcode_targets.h bpo-46329: Split calls into precall and call instructions. (GH-30855) 2022-01-28 12:42:30 +00:00
pathconfig.c bpo-45582: Port getpath[p].c to Python (GH-29041) 2021-12-03 00:08:42 +00:00
preconfig.c bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914) 2021-10-13 19:25:53 +02:00
pyarena.c bpo-43244: Remove the pyarena.h header (GH-25007) 2021-03-24 02:23:01 +01:00
pyctype.c
…
pyfpe.c bpo-46315: Add ifdef HAVE_ feature checks for WASI compatibility (GH-30507) 2022-01-13 09:46:04 +01:00
pyhash.c bpo-29410: Change the default hash algorithm to SipHash13. (GH-28752) 2021-10-10 17:29:46 +09:00
pylifecycle.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
pymath.c bpo-45440: Remove pymath.c fallbacks (GH-28977) 2021-10-15 19:45:34 +02:00
pystate.c Pass reference to func, as well as args, when pushing frame. (GH-31100) 2022-02-03 18:36:28 +00:00
pystrcmp.c bpo-41524: fix pointer bug in PyOS_mystr{n}icmp (GH-21845) 2020-08-27 14:45:25 +09:00
pystrhex.c bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914) 2021-10-13 19:25:53 +02:00
pystrtod.c bpo-45412: Move _Py_SET_53BIT_PRECISION_START to pycore_pymath.h (GH-28882) 2021-10-11 23:09:40 +02:00
pythonrun.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
pytime.c bpo-46670: Test if a macro is defined, not its value (GH-31178) 2022-02-07 01:46:51 +01:00
specialize.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
stdlib_module_names.h Revert "bpo-28533: Remove asyncore, asynchat, smtpd modules (GH-29521)" (GH-29951) 2021-12-07 12:31:04 +01:00
structmember.c bpo-44655: Include the name of the type in unset __slots__ attribute errors (GH-27199) 2021-07-17 00:34:46 +01:00
suggestions.c bpo-45826: Fix a crash in suggestions.c by checking for `traceback is None` (GH-29590) 2021-11-18 00:03:52 +01:00
symtable.c bpo-46417: Clear symtable identifiers at exit (GH-30809) 2022-01-23 00:06:56 +01:00
sysmodule.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
thread.c bpo-46670: Remove unused macros in the Python directory (GH-31192) 2022-02-07 16:21:52 +01:00
thread_nt.h bpo-46008: Move thread-related interpreter state into a sub-struct. (gh-29971) 2021-12-07 14:03:47 -07:00
thread_pthread.h bpo-46008: Move thread-related interpreter state into a sub-struct. (gh-29971) 2021-12-07 14:03:47 -07:00
traceback.c bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928) 2022-02-08 13:39:07 -07:00
wordcode_helpers.h bpo-31338 (#3374) 2017-09-14 18:13:16 -07:00

README 

Miscellaneous source files for the main Python shared library