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* gh-102416: Do not memoize incorrectly loop rules in the parser (#102467)Pablo Galindo Salgado2023-03-061-216/+0
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* gh-101046: Fix a potential memory leak in the parser when raising ↵Pablo Galindo Salgado2023-01-161-0/+108
| | | | MemoryError (#101051)
* gh-90994: Improve error messages upon call arguments syntax errors (GH-96893)Lysandros Nikolaou2022-11-201-1149/+1395
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* gh-99211: Point to except/except* on syntax errors when mixing them (GH-99215)Lysandros Nikolaou2022-11-201-671/+713
| | | Automerge-Triggered-By: GH:lysnikolaou
* gh-99153: set location on SyntaxError for try with both except and except* ↵Irit Katriel2022-11-061-3/+3
| | | | (GH-99160)
* gh-98931: Improve error message when the user types 'import x from y' ↵Pablo Galindo Salgado2022-11-011-391/+465
| | | | instead of 'from y import x' (#98932)
* gh-91210: Improve error message when non-default param follows default ↵Lysandros Nikolaou2022-09-171-345/+353
| | | | | | (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
* gh-96587: Raise `SyntaxError` for PEP654 on older `feature_version` (#96588)Nikita Sobolev2022-09-051-1/+1
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* gh-94996: Disallow lambda pos only params with feature_version < (3, 8) ↵Shantanu2022-08-121-2/+2
| | | | (GH-95934)
* gh-94996: Disallow parsing pos only params with feature_version < (3, 8) ↵Shantanu2022-08-121-2/+2
| | | | (GH-94997)
* gh-94949: Disallow parsing parenthesised ctx mgr with old feature_version ↵Shantanu2022-07-181-1/+1
| | | | | | | | | | | (#94950) * gh-94949: Disallow parsing parenthesised ctx manager with old feature_version * 📜🤖 Added by blurb_it. * Allow it with feature_version=(3, 9) as well Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* gh-94947: Disallow parsing walrus with feature_version < (3, 8) (#94948)Shantanu2022-07-181-1/+1
| | | | | | | | | * gh-94947: Disallow parsing walrus with feature_version < (3, 8) * oops, commit the parser * 📜🤖 Added by blurb_it. Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* gh-94192: Fix error for dictionary literals with invalid expression as ↵wookie1842022-06-261-261/+326
| | | | | | | value. (#94304) * Fix error for dictionary literals with invalid expression as value. * Remove trailing whitespace
* gh-92858: Improve error message for some suites with syntax error before ':' ↵wookie1842022-06-231-362/+500
| | | | (#92894)
* gh-93671: Avoid exponential backtracking in deeply nested sequence patterns ↵Pablo Galindo Salgado2022-06-101-0/+10
| | | | | in match statements (GH-93680) Co-authored-by: Łukasz Langa <lukasz@langa.pl>
* gh-93103: Parser uses PyConfig.parser_debug instead of Py_DebugFlag (#93106)Victor Stinner2022-05-241-1/+1
| | | | | | | * Replace deprecated Py_DebugFlag with PyConfig.parser_debug in the parser. * Add Parser.debug member. * Add tok_state.debug member. * Py_FrozenMain(): Replace Py_VerboseFlag with PyConfig.verbose.
* gh-90473: Decrease recursion limit and skip tests on WASI (GH-92803)Christian Heimes2022-05-191-1/+5
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* bpo-47212: Improve error messages for un-parenthesized generator expressions ↵Matthieu Dartiailh2022-04-051-3/+3
| | | | (GH-32302)
* bpo-43224: Implement PEP 646 grammar changes (GH-31018)Matthew Rahtz2022-03-261-2101/+2465
| | | Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
* bpo-46838: Syntax error improvements for function definitions (GH-31590)Pablo Galindo Salgado2022-03-221-867/+3150
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* Allow the parser to avoid nested processing of invalid rules (GH-31252)Pablo Galindo Salgado2022-02-101-1042/+1032
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* bpo-46707: Avoid potential exponential backtracking in some syntax errors ↵Pablo Galindo Salgado2022-02-101-1015/+1020
| | | | (GH-31241)
* bpo-46110: Restore commit e9898bf153d26059261ffef11f7643ae991e2a4cPablo Galindo Salgado2022-01-031-3193/+4580
| | | This restores commit e9898bf153d26059261ffef11f7643ae991e2a4c .
* Revert "bpo-46110: Add a recursion check to avoid stack overflow in the PEG ↵Pablo Galindo Salgado2022-01-031-4580/+3193
| | | | | parser (GH-30177)" (GH-30363) This reverts commit e9898bf153d26059261ffef11f7643ae991e2a4c temporarily as we want to confirm if this commit is the cause of a slowdown at startup time.
* bpo-46110: Add a recursion check to avoid stack overflow in the PEG parser ↵Pablo Galindo Salgado2021-12-201-3193/+4580
| | | | | (GH-30177) Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
* bpo-45292: [PEP-654] add except* (GH-29581)Irit Katriel2021-12-141-1776/+2720
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* bpo-45866: pegen strips directory of "generated from" header (GH-29777)Victor Stinner2021-11-261-1/+1
| | | | | "make regen-all" now produces the same output when run from a directory other than the source tree: when building Python out of the source tree.
* bpo-45727: Only trigger the 'did you forgot a comma' error suggestion if ↵Pablo Galindo Salgado2021-11-241-1/+1
| | | | inside parentheses (GH-29757)
* bpo-45450: Improve syntax error for parenthesized arguments (GH-28906)Pablo Galindo Salgado2021-11-201-445/+849
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* bpo-45727: Make the syntax error for missing comma more consistent (GH-29427)Pablo Galindo Salgado2021-11-191-21/+21
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* bpo-45764: improve error message when missing '(' after 'def' (GH-29484)Carl Friedrich Bolz-Tereick2021-11-091-12/+12
| | | | | to achieve this, change the grammar to expect the '(' token after 'def' NAME. Automerge-Triggered-By: GH:pablogsal
* bpo-45716: Improve the error message when using True/False/None as keywords ↵Pablo Galindo Salgado2021-11-051-689/+795
| | | | in a call (GH-29413)
* bpo-44257: fix "assigment_expr" typo + regenerate the grammar, and remove ↵wim glenn2021-11-031-60/+60
| | | | | | unused imports (GH-29393) Co-authored-by: Wim Glenn <wglenn@jumptrading.com>
* bpo-45494: Fix parser crash when reporting errors involving invalid ↵Pablo Galindo Salgado2021-10-191-120/+120
| | | | | | | | | | | | continuation characters (GH-28993) There are two errors that this commit fixes: * The parser was not correctly computing the offset and the string source for E_LINECONT errors due to the incorrect usage of strtok(). * The parser was not correctly unwinding the call stack when a tokenizer exception happened in rules involving optionals ('?', [...]) as we always make them return valid results by using the comma operator. We need to check first if we don't have an error before continuing.
* bpo-43914: Correctly highlight SyntaxError exceptions for invalid generator ↵Pablo Galindo Salgado2021-09-271-3/+3
| | | | expression in function calls (GH-28576)
* Extract visitors from the grammar nodes and call makers in the peg generator ↵Pablo Galindo Salgado2021-09-051-167/+167
| | | | | (GH-28172) Simplify the peg generator logic by extracting as much visitors as possible to disentangle the flow and separate concerns.
* bpo-44947: Refine the syntax error for trailing commas in import statements ↵Pablo Galindo Salgado2021-08-181-5/+8
| | | | (GH-27814)
* Update pegen to use the latest upstream developments (GH-27586)Pablo Galindo Salgado2021-08-121-41/+41
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* bpo-44838: Refine the custom syntax errors for invalid 'if' expressions ↵Pablo Galindo Salgado2021-08-051-553/+610
| | | | (GH-27615)
* bpo-44792: Improve syntax errors for if expressions (GH-27506)Miguel Brito2021-08-021-0/+33
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* bpo-34013: Don't consider a grouped expression when reporting legacy print ↵Pablo Galindo Salgado2021-08-011-5/+7
| | | | syntax errors (GH-27521)
* Divide the grammar into sections to improve readability (GH-27502)Pablo Galindo Salgado2021-07-311-6585/+6583
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* bpo-34013: Move the Python 2 hints from the exception constructor to the ↵Pablo Galindo Salgado2021-07-271-7/+7
| | | | parser (GH-27392)
* bpo-34013: Generalize the invalid legacy statement error message (GH-27389)Pablo Galindo Salgado2021-07-271-243/+309
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* Remove unnecessary 'invalid_primary' rule in the parser (GH-27186)Pablo Galindo Salgado2021-07-161-304/+237
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* bpo-44456: Improve the syntax error when mixing keyword and positional ↵Pablo Galindo2021-06-241-464/+628
| | | | patterns (GH-26793)
* bpo-44368: Improve syntax errors with invalid as pattern targets (GH-26632)Pablo Galindo2021-06-101-213/+313
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* bpo-44385: Remove unused grammar rules (GH-26655)Lysandros Nikolaou2021-06-101-1256/+791
| | | Automerge-Triggered-By: GH:lysnikolaou
* bpo-44345: Fix 'generated by' comment in parser.c (GH-26615)Akira Nonaka2021-06-091-1/+1
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* bpo-44305: Improve syntax error for try blocks without except or finally ↵Pablo Galindo2021-06-031-269/+358
| | | | (GH-26523)
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