Commit Graph

1140 Commits

Author SHA1 Message Date
Marta Gómez Macías 6715f91edc
gh-102856: Python tokenizer implementation for PEP 701 (#104323)
This commit replaces the Python implementation of the tokenize module with an implementation
that reuses the real C tokenizer via a private extension module. The tokenize module now implements
a compatibility layer that transforms tokens from the C tokenizer into Python tokenize tokens for backward
compatibility.

As the C tokenizer does not emit some tokens that the Python tokenizer provides (such as comments and non-semantic newlines), a new special mode has been added to the C tokenizer mode that currently is only used via
the extension module that exposes it to the Python layer. This new mode forces the C tokenizer to emit these new extra tokens and add the appropriate metadata that is needed to match the old Python implementation.

Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
2023-05-21 01:03:02 +01:00
Pablo Galindo Salgado ff7f731632
gh-104658: Fix location of unclosed quote error for multiline f-strings (#104660) 2023-05-20 14:07:05 +01:00
Jelle Zijlstra 24d8b88420
gh-103763: Implement PEP 695 (#103764)
This implements PEP 695, Type Parameter Syntax. It adds support for:

- Generic functions (def func[T](): ...)
- Generic classes (class X[T](): ...)
- Type aliases (type X = ...)
- New scoping when the new syntax is used within a class body
- Compiler and interpreter changes to support the new syntax and scoping rules 

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Co-authored-by: Eric Traut <eric@traut.com>
Co-authored-by: Larry Hastings <larry@hastings.org>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2023-05-15 20:36:23 -07:00
Hugo van Kemenade d513ddee94
Trim trailing whitespace and test on CI (#104275)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2023-05-08 17:03:52 +03:00
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
Pablo Galindo Salgado eba64d2afb
gh-104169: Ensure the tokenizer doesn't overwrite previous errors (#104170) 2023-05-04 15:15:26 +01:00
Lysandros Nikolaou ef0df5284f
gh-97556: Raise null bytes syntax error upon null in multiline string (GH-104136) 2023-05-04 14:26:23 +02:00
jx124 5078eedc5b
gh-104016: Fixed off by 1 error in f string tokenizer (#104047)
Co-authored-by: sunmy2019 <59365878+sunmy2019@users.noreply.github.com>
Co-authored-by: Ken Jin <kenjin@python.org>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
2023-05-01 19:15:47 +00:00
chgnrdv d5a97074d2
gh-103824: fix use-after-free error in Parser/tokenizer.c (#103993) 2023-05-01 15:26:43 +00:00
Lysandros Nikolaou 9169a56fad
gh-103656: Transfer f-string buffers to parser to avoid use-after-free (GH-103896)
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
2023-04-27 01:33:31 +00:00
Lysandros Nikolaou 57f8f9a66d
gh-103718: Correctly set f-string buffers in all cases (GH-103815)
Turns out we always need to remember/restore fstring buffers in all of
the stack of tokenizer modes, cause they might change to
`TOK_REGULAR_MODE` and have newlines inside the braces (which is when we
need to reallocate the buffer and restore the fstring ones).
2023-04-25 01:31:21 +00:00
Lysandros Nikolaou cb157a1a35
GH-103727: Avoid advancing tokenizer too far in f-string mode (GH-103775) 2023-04-24 12:30:21 -06:00
Lysandros Nikolaou 05b3ce7339
GH-103718: Correctly cache and restore f-string buffers when needed (GH-103719) 2023-04-23 13:06:10 -06:00
Nikita Sobolev 0fd3891758
gh-102310: Change error range for invalid bytes literals (#103663) 2023-04-22 18:08:27 -06:00
Pablo Galindo Salgado d4aa8578b1
gh-102856: Clean some of the PEP 701 tokenizer implementation (#103634) 2023-04-19 14:51:31 -06:00
Pablo Galindo Salgado 1ef61cf71a
gh-102856: Initial implementation of PEP 701 (#102855)
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
Co-authored-by: Marta Gómez Macías <mgmacias@google.com>
Co-authored-by: sunmy2019 <59365878+sunmy2019@users.noreply.github.com>
2023-04-19 11:18:16 -05:00
Chenxi Mao 7703def37e
GH-102711: Fix warnings found by clang (#102712)
There are some warnings if build python via clang:

Parser/pegen.c:812:31: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
_PyPegen_clear_memo_statistics()
                              ^
                               void

Parser/pegen.c:820:29: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
_PyPegen_get_memo_statistics()
                            ^
                             void

Fix it to make clang happy.

Signed-off-by: Chenxi Mao <chenxi.mao@suse.com>
2023-03-28 10:52:22 +02:00
Max Bachmann c6858d1e7f
gh-102255: Improve build support for Windows API partitions (GH-102256)
Add `MS_WINDOWS_DESKTOP`, `MS_WINDOWS_APPS`, `MS_WINDOWS_SYSTEM` and `MS_WINDOWS_GAMES` preprocessor definitions to allow switching off functionality missing from particular API partitions ("partitions" are used in Windows to identify overlapping subsets of APIs).
CPython only officially supports `MS_WINDOWS_DESKTOP` and `MS_WINDOWS_SYSTEM` (APPS is included by normal desktop builds, but APPS without DESKTOP is not covered). Other configurations are a convenience for people building their own runtimes.
`MS_WINDOWS_GAMES` is for the Xbox subset of the Windows API, which is also available on client OS, but is restricted compared to `MS_WINDOWS_DESKTOP`. These restrictions may change over time, as they relate to the build headers rather than the OS support, and so we assume that Xbox builds will use the latest available version of the GDK.
2023-03-09 21:09:12 +00:00
Pablo Galindo Salgado f533f216e6
gh-102416: Do not memoize incorrectly loop rules in the parser (#102467) 2023-03-06 14:41:53 +01:00
Eric Snow 880437d4ec
gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333)
https://github.com/python/cpython/issues/100227
2023-02-28 14:16:39 -07:00
abel1502 448c7d154e
Fix some typos in asdl_c.py (GH-101757) 2023-02-09 21:10:46 -06:00
Mark Shannon feec49c407
GH-101578: Normalize the current exception (GH-101607)
* Make sure that the current exception is always normalized.

* Remove redundant type and traceback fields for the current exception.

* Add new API functions: PyErr_GetRaisedException, PyErr_SetRaisedException

* Add new API functions: PyException_GetArgs, PyException_SetArgs
2023-02-08 09:31:12 +00:00
Stepfen Shawn a1e051a237
gh-100940: Change "char *str" to "const char *str" in KeywordToken: It is an immutable string. (#100936) 2023-01-18 21:02:48 +00:00
Pablo Galindo Salgado 1de4395f62
gh-101046: Fix a potential memory leak in the parser when raising MemoryError (#101051) 2023-01-16 18:45:37 +00:00
Eric Snow 0415cf895f
gh-81057: Move the Cached Parser Dummy Name to _PyRuntimeState (#100277) 2022-12-16 13:48:03 +00:00
Eric Snow 91a8e002c2
gh-81057: Move More Globals to _PyRuntimeState (gh-100092)
https://github.com/python/cpython/issues/81057
2022-12-07 15:56:31 -07:00
Eric Snow d47ffeb9e3
gh-90110: Clean Up the C-analyzer Globals Lists (gh-100091)
https://github.com/python/cpython/issues/90110
2022-12-07 15:02:47 -07:00
Pablo Galindo Salgado 97e7004cfe
gh-100050: Fix an assertion error when raising unclosed parenthesis errors in the tokenizer (GH-100065)
Automerge-Triggered-By: GH:pablogsal
2022-12-06 15:09:56 -08:00
Pablo Galindo Salgado 417206a05c
gh-99891: Fix infinite recursion in the tokenizer when showing warnings (GH-99893)
Automerge-Triggered-By: GH:pablogsal
2022-11-30 03:36:06 -08:00
Lysandros Nikolaou 6d8da238cc
gh-90994: Improve error messages upon call arguments syntax errors (GH-96893) 2022-11-21 00:15:05 +01:00
Pablo Galindo Salgado e13d1d9dda
gh-99581: Fix a buffer overflow in the tokenizer when copying lines that fill the available buffer (#99605) 2022-11-20 20:20:03 +00:00
Lysandros Nikolaou 9c4232ae89
gh-99211: Point to except/except* on syntax errors when mixing them (GH-99215)
Automerge-Triggered-By: GH:lysnikolaou
2022-11-20 09:11:02 -08:00
Eric Snow 3c57971a2d
gh-81057: Move Globals in Core Code to _PyRuntimeState (gh-99496)
This is the first of several changes to consolidate non-object globals in core code.

https://github.com/python/cpython/issues/81057
2022-11-15 09:45:11 -07:00
Victor Stinner f13f466474
gh-99300: Use Py_NewRef() in Python/Python-ast.c (#99499)
Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and
Py_XNewRef() in Python/Python-ast.c.

Update Parser/asdl_c.py to regenerate code.
2022-11-15 10:29:56 +01:00
Eric Snow a088290f9d
gh-81057: Move Global Variables Holding Objects to _PyRuntimeState. (gh-99487)
This moves nearly all remaining object-holding globals in core code (other than static types).

https://github.com/python/cpython/issues/81057
2022-11-14 13:50:56 -07:00
Victor Stinner 4ce2a202c7
gh-99300: Use Py_NewRef() in Parser/ directory (#99330)
Replace Py_INCREF() with Py_NewRef() in C files of the Parser/
directory and in the PEG generator.
2022-11-10 15:30:05 +01:00
Victor Stinner 231d83b724
gh-99300: Use Py_NewRef() in Python/ directory (#99317)
Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and
Py_XNewRef() in C files of the Python/ directory.

Update Parser/asdl_c.py to regenerate Python/Python-ast.c.
2022-11-10 11:23:36 +01:00
Irit Katriel 61b6c40b64
gh-99153: set location on SyntaxError for try with both except and except* (GH-99160) 2022-11-06 15:36:19 +00:00
Victor Stinner a60ddd31be
gh-98401: Invalid escape sequences emits SyntaxWarning (#99011)
A backslash-character pair that is not a valid escape sequence now
generates a SyntaxWarning, instead of DeprecationWarning.  For
example, re.compile("\d+\.\d+") now emits a SyntaxWarning ("\d" is an
invalid escape sequence), use raw strings for regular expression:
re.compile(r"\d+\.\d+"). In a future Python version, SyntaxError will
eventually be raised, instead of SyntaxWarning.

Octal escapes with value larger than 0o377 (ex: "\477"), deprecated
in Python 3.11, now produce a SyntaxWarning, instead of
DeprecationWarning. In a future Python version they will be
eventually a SyntaxError.

codecs.escape_decode() and codecs.unicode_escape_decode() are left
unchanged: they still emit DeprecationWarning.

* The parser only emits SyntaxWarning for Python 3.12 (feature
  version), and still emits DeprecationWarning on older Python
  versions.
* Fix SyntaxWarning by using raw strings in Tools/c-analyzer/ and
  wasm_build.py.
2022-11-03 17:53:25 +01:00
Pablo Galindo Salgado 395d4285bf
gh-98931: Improve error message when the user types 'import x from y' instead of 'from y import x' (#98932) 2022-11-01 13:01:20 +00:00
Victor Stinner 1863302d61
gh-97669: Create Tools/build/ directory (#97963)
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
Lysandros Nikolaou 3de08ce8c1
gh-97997: Add col_offset field to tokenizer and use that for AST nodes (#98000) 2022-10-07 14:38:35 -07:00
Lysandros Nikolaou cbf0afd8a1
gh-97973: Return all necessary information from the tokenizer (GH-97984)
Right now, the tokenizer only returns type and two pointers to the start and end of the token.
This PR modifies the tokenizer to return the type and set all of the necessary information,
so that the parser does not have to this.
2022-10-06 16:07:17 -07:00
Mark Shannon 76449350b3
GH-91079: Decouple C stack overflow checks from Python recursion checks. (GH-96510) 2022-10-05 01:34:03 +01:00
Pablo Galindo Salgado aab01e3524
gh-96670: Raise SyntaxError when parsing NULL bytes (#97594) 2022-09-27 23:23:42 +01:00
Lysandros Nikolaou 7e36abbb78
gh-91210: Improve error message when non-default param follows default (GH-95933)
- Improve error message when parameter without a default follows one with a default
- Show same error message when positional-only params precede the default/non-default sequence
2022-09-17 10:09:28 -07:00
Matthias Görgens 81e36f350b
gh-96678: Fix UB of null pointer arithmetic (GH-96782)
Automerge-Triggered-By: GH:pablogsal
2022-09-13 06:14:35 -07:00
Michael Droettboom 8bc356a7dd
gh-96268: Fix loading invalid UTF-8 (#96270)
This makes tokenizer.c:valid_utf8 match stringlib/codecs.h:decode_utf8.

It also fixes an off-by-one error introduced in 3.10 for the line number when the tokenizer reports bad UTF8.
2022-09-07 14:23:54 -07:00
Michael Droettboom 05692c67c5
gh-96611: Fix error message for invalid UTF-8 in mid-multiline string (#96623) 2022-09-07 00:12:16 +01:00
Nikita Sobolev 2c7d2e8d46
gh-96587: Raise `SyntaxError` for PEP654 on older `feature_version` (#96588) 2022-09-05 17:54:09 +01:00