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* gh-131238: Add explicit includes to pycore headers (#131257)Victor Stinner2025-03-17
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* GH-130396: Use computed stack limits on linux (GH-130398)Mark Shannon2025-02-25
| | | | | | | | | | | * Implement C recursion protection with limit pointers for Linux, MacOS and Windows * Remove calls to PyOS_CheckStack * Add stack protection to parser * Make tests more robust to low stacks * Improve error messages for stack overflow
* GH-91079: Revert "GH-91079: Implement C stack limits using addresses, not ↵Petr Viktorin2025-02-24
| | | | | | | | | counters. (GH-130007)" for now (GH130413) Revert "GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)" for now Unfortunatlely, the change broke some buildbots. This reverts commit 2498c22fa0a2b560491bc503fa676585c1a603d0.
* GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)Mark Shannon2025-02-19
| | | | | | | | | | | | * Implement C recursion protection with limit pointers * Remove calls to PyOS_CheckStack * Add stack protection to parser * Make tests more robust to low stacks * Improve error messages for stack overflow
* gh-122313: Clean up deep recursion guarding code in the compiler (GH-122640)Serhiy Storchaka2024-08-03
| | | | | | | | | Add ENTER_RECURSIVE and LEAVE_RECURSIVE macros in ast.c, ast_opt.c and symtable.c. Remove VISIT_QUIT macro in symtable.c. The current recursion depth counter only needs to be updated during normal execution -- all functions should just return an error code if an error occurs.
* gh-116126: Implement PEP 696 (#116129)Jelle Zijlstra2024-05-03
| | | | | Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
* GH-113655: Lower the C recursion limit on various platforms (GH-113944)Mark Shannon2024-01-16
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* gh-109341: Fix crash on compiling invalid AST including TypeAlias (#109349)Jelle Zijlstra2023-09-13
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* gh-109351: Fix crash when compiling AST with invalid NamedExpr (#109352)Jelle Zijlstra2023-09-13
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* GH-91079: Rename C_RECURSION_LIMIT to Py_C_RECURSION_LIMIT (#108507)Victor Stinner2023-09-08
| | | | | | | Symbols of the C API should be prefixed by "Py_" to avoid conflict with existing names in 3rd party C extensions on "#include <Python.h>". test.pythoninfo now logs Py_C_RECURSION_LIMIT constant and other _testcapi and _testinternalcapi constants.
* GH-107263: Increase C stack limit for most functions, except ↵Mark Shannon2023-08-04
| | | | | | `_PyEval_EvalFrameDefault()` (GH-107535) * Set C recursion limit to 1500, set cost of eval loop to 2 frames, and compiler mutliply to 2.
* gh-104656: Rename typeparams AST node to type_params (#104657)Jelle Zijlstra2023-05-21
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* gh-103763: Implement PEP 695 (#103764)Jelle Zijlstra2023-05-15
| | | | | | | | | | | | | | 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>
* gh-104482: Fix error handling bugs in ast.c (#104483)Irit Katriel2023-05-15
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* GH-91079: Decouple C stack overflow checks from Python recursion checks. ↵Mark Shannon2022-10-05
| | | | (GH-96510)
* gh-92597: Improve error message for AST nodes with invalid ranges (GH-93398)Pablo Galindo Salgado2022-06-01
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* gh-93351: Ensure the position information in AST nodes created by the parser ↵Pablo Galindo Salgado2022-05-30
| | | | is always consistent (GH-93352)
* bpo-45292: [PEP-654] add except* (GH-29581)Irit Katriel2021-12-14
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* bpo-45753: Make recursion checks more efficient. (GH-29524)Mark Shannon2021-11-16
| | | | * Uses recursion remaining, instead of recursion depth to speed up check against recursion limit.
* bpo-43897: Reject "_" captures and top-level MatchStar in the AST validator ↵Brandt Bucher2021-07-28
| | | | (GH-27432)
* bpo-43897: AST validation for pattern matching nodes (GH24771)Batuhan Taskaya2021-07-28
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* bpo-43892: Make match patterns explicit in the AST (GH-25585)Nick Coghlan2021-04-28
| | | Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* bpo-42609: Check recursion depth in the AST validator and optimizer (GH-23744)Serhiy Storchaka2021-04-25
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* bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933)Victor Stinner2021-03-23
| | | | | | | | | | | | | | | | These functions were undocumented and excluded from the limited C API. Most names defined by these header files were not prefixed by "Py" and so could create names conflicts. For example, Python-ast.h defined a "Yield" macro which was conflict with the "Yield" name used by the Windows <winbase.h> header. Use the Python ast module instead. * Move Include/asdl.h to Include/internal/pycore_asdl.h. * Move Include/Python-ast.h to Include/internal/pycore_ast.h. * Remove ast.h header file. * pycore_symtable.h no longer includes Python-ast.h.
* bpo-43244: Remove the PyAST_Validate() function (GH-24911)Victor Stinner2021-03-18
| | | | | | | | | | | | Remove the PyAST_Validate() function. It is no longer possible to build a AST object (mod_ty type) with the public C API. The function was already excluded from the limited C API (PEP 384). Rename PyAST_Validate() function to _PyAST_Validate(), move it to the internal C API, and don't export it anymore (replace PyAPI_FUNC with extern). The function was added in bpo-12575 by the commit 832bfe2ebd5ecfa92031cd40c8b41835ba90487f.
* bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)Brandt Bucher2021-02-26
| | | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Talin <viridia@gmail.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-42000: Cleanup the AST related C-code (GH-22641)Batuhan Taskaya2020-10-10
| | | | | | | | - Use the proper asdl sequence when creating empty arguments - Remove reduntant casts (thanks to new typed asdl_sequences) - Remove MarshalPrototypeVisitor and some utilities from asdl generator - Fix the header of `Python/ast.c` (kept from pgen times) Automerge-Triggered-By: @pablogsal
* bpo-41746: Add type information to asdl_seq objects (GH-22223)Pablo Galindo2020-09-16
| | | | | | | | | | | | | * Add new capability to the PEG parser to type variable assignments. For instance: ``` | a[asdl_stmt_seq*]=';'.small_stmt+ [';'] NEWLINE { a } ``` * Add new sequence types from the asdl definition (automatically generated) * Make `asdl_seq` type a generic aliasing pointer type. * Create a new `asdl_generic_seq` for the generic case using `void*`. * The old `asdl_seq_GET`/`ast_seq_SET` macros now are typed. * New `asdl_seq_GET_UNTYPED`/`ast_seq_SET_UNTYPED` macros for dealing with generic sequences. * Changes all possible `asdl_seq` types to use specific versions everywhere.
* bpo-40939: Remove the old parser (Part 2) (GH-21005)Lysandros Nikolaou2020-06-20
| | | Remove some remaining files and Makefile targets for the old parser
* bpo-40939: Remove the old parser (GH-20768)Pablo Galindo2020-06-11
| | | This commit removes the old parser, the deprecated parser module, the old parser compatibility flags and environment variables and all associated support code and documentation.
* bpo-40870: Invalidate usage of some constants with ast.Name (GH-20649)Batuhan Taskaya2020-06-06
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* bpo-40614: Respect feature version for f-string debug expressions (GH-20196)Shantanu2020-05-27
| | | | Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-40334: Correctly identify invalid target in assignment errors (GH-20076)Pablo Galindo2020-05-15
| | | Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
* bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode ↵Serhiy Storchaka2020-04-11
| | | | data. (GH-19345)
* bpo-40141: Include the value in the column position for keyword AST nodes ↵Pablo Galindo2020-04-03
| | | | (GH-19348)
* bpo-40147: Move the check for duplicate keywords to the compiler (GH-19289)Pablo Galindo2020-04-03
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* bpo-40141: Add line and column information to ast.keyword nodes (GH-19283)Pablo Galindo2020-04-02
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* bpo-39882: Add _Py_FatalErrorFormat() function (GH-19157)Victor Stinner2020-03-25
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* bpo-40000: Improve error messages when validating invalid ast.Constant nodes ↵Batuhan Taşkaya2020-03-19
| | | | | (GH-19055) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-39988: Remove ast.AugLoad and ast.AugStore node classes. (GH-19038)Serhiy Storchaka2020-03-17
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* bpo-39969: Remove ast.Param node class as is no longer used (GH-19020)Batuhan Taşkaya2020-03-15
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* bpo-34822: Simplify AST for subscription. (GH-9605)Serhiy Storchaka2020-03-10
| | | | | | | | | * Remove the slice type. * Make Slice a kind of the expr type instead of the slice type. * Replace ExtSlice(slices) with Tuple(slices, Load()). * Replace Index(value) with a value itself. All non-terminal nodes in AST for expressions are now of the expr type.
* bpo-39639: Remove the AST "Suite" node and associated code (GH-18513)Batuhan Taşkaya2020-03-04
| | | | | | | | The AST "Suite" node is no longer used and it can be removed from the ASDL definition and related structures (compiler, visitors, ...). Co-Authored-By: Victor Stinner <vstinner@python.org> Co-authored-by: Brett Cannon <54418+brettcannon@users.noreply.github.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-39702: Relax grammar restrictions on decorators (PEP 614) (GH-18570)Brandt Bucher2020-03-03
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* bpo-39474: Fix AST pos for expressions like (a)(b), (a)[b] and (a).b. (GH-18477)Serhiy Storchaka2020-02-12
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* bpo-39579: Fix Attribute end_col_offset to point at the current node (GH-18405)Lysandros Nikolaou2020-02-07
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* bpo-39235: Fix end location for genexp in call args (GH-17925)Guido van Rossum2020-01-09
| | | | | | The fix changes copy_location() to require an extra node from which to extract the end location, and fixing all 5 call sites. https://bugs.python.org/issue39235
* bpo-39176: Improve error message for 'named assignment' (GH-17777)Ned Batchelder2019-12-31
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* bpo-39080: Starred Expression's column offset fix when inside a CALL (GH-17645)Lysandros Nikolaou2019-12-18
| | | | Co-Authored-By: Pablo Galindo <Pablogsal@gmail.com>
* The comment in ast_for_namedexpr shouldn't include if_stmt (GH-17586)Guido van Rossum2019-12-15
| | | Automerge-Triggered-By: @gvanrossum
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