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* gh-98762: Fix locations of match sub-patterns (GH-98775)Irit Katriel2022-11-121-1/+95
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* gh-99254: remove all unused consts from code objects (GH-99255)Irit Katriel2022-11-111-2/+36
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* gh-94445: add compiler test for another case of excessive stack use (GH-99237)Carl Meyer2022-11-081-0/+7
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* gh-98461: Fix location of RETURN_VALUE in async generator bytecode. ↵Irit Katriel2022-10-251-1/+1
| | | | compiler_jump_if no longer needs a pointer to the loc. (GH-98494)
* gh-98461: Fix source location in comprehensions bytecode (GH-98464)Irit Katriel2022-10-201-0/+159
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* gh-98398: Fix source locations for 'assert' bytecode (GH-98405)Irit Katriel2022-10-191-1/+17
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* gh-98390: Fix source locations of boolean sub-expressions (GH-98396)Irit Katriel2022-10-181-0/+26
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* gh-98393: os module reject bytes-like, only accept bytes (#98394)Victor Stinner2022-10-181-3/+2
| | | | | The os module and the PyUnicode_FSDecoder() function no longer accept bytes-like paths, like bytearray and memoryview types: only the exact bytes type is accepted for bytes strings.
* gh-87092: bring compiler code closer to a preprocessing-opt-assembler ↵Irit Katriel2022-10-051-1/+13
| | | | organisation (GH-97644)
* GH-91079: Decouple C stack overflow checks from Python recursion checks. ↵Mark Shannon2022-10-051-2/+1
| | | | (GH-96510)
* gh-96670: Raise SyntaxError when parsing NULL bytes (#97594)Pablo Galindo Salgado2022-09-271-4/+4
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* GH-95921: Fix positions for some chained comparisons (GH-96968)Brandt Bucher2022-09-201-0/+25
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* gh-95778: CVE-2020-10735: Prevent DoS by very large int() (#96499)Gregory P. Smith2022-09-021-0/+13
| | | | | | | | | | | | | | | | Integer to and from text conversions via CPython's bignum `int` type is not safe against denial of service attacks due to malicious input. Very large input strings with hundred thousands of digits can consume several CPU seconds. This PR comes fresh from a pile of work done in our private PSRT security response team repo. Signed-off-by: Christian Heimes [Red Hat] <christian@python.org> Tons-of-polishing-up-by: Gregory P. Smith [Google] <greg@krypto.org> Reviews via the private PSRT repo via many others (see the NEWS entry in the PR). <!-- gh-issue-number: gh-95778 --> * Issue: gh-95778 <!-- /gh-issue-number --> I wrote up [a one pager for the release managers](https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y/edit#). Much of that text wound up in the Issue. Backports PRs already exist. See the issue for links.
* gh-96276: suppress SyntaxWarning in test_compile (GH-96277)Irit Katriel2022-08-251-1/+4
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* GH-95150: Use position and exception tables for code hashing and equality ↵Brandt Bucher2022-08-011-3/+24
| | | | (GH-95509)
* gh-93678: Address stack exhaustion on WASI (GH-95296)Christian Heimes2022-07-261-0/+2
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* GH-94036: Fix more attribute location quirks (GH-95028)Brandt Bucher2022-07-221-0/+60
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* GH-91409: Don't overwrite valid locations with NOP locations (GH-95067)Brandt Bucher2022-07-201-0/+38
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* GH-94694: Fix column offsets for multi-line method lookups (GH-94697)Brandt Bucher2022-07-101-0/+21
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* gh-94485: Set line number of module's RESUME instruction to 0, as specified ↵Irit Katriel2022-07-051-3/+5
| | | | | by PEP 626 (GH-94552) Co-authored-by: Mark Shannon <mark@hotpy.org>
* GH-94329: Don't raise on excessive stack consumption (GH-94421)Mark Shannon2022-06-301-0/+6
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* GH-94163: Add BINARY_SLICE and STORE_SLICE instructions. (GH-94168)Mark Shannon2022-06-271-0/+36
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* gh-90473: Decrease recursion limit and skip tests on WASI (GH-92803)Christian Heimes2022-05-191-1/+3
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* GH-90690: Remove `PRECALL` instruction (GH-92925)Mark Shannon2022-05-191-1/+1
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* GH-88116: Use a compact format to represent end line and column offsets. ↵Mark Shannon2022-04-211-14/+19
| | | | | | | | | | | | (GH-91666) * Stores all location info in linetable to conform to PEP 626. * Remove column table from code objects. * Remove end-line table from code objects. * Document new location table format
* bpo-46841: Quicken code in-place (GH-31888)Brandt Bucher2022-03-211-2/+1
| | | | | | | | | | | | | | | | | | | * Moves the bytecode to the end of the corresponding PyCodeObject, and quickens it in-place. * Removes the almost-always-unused co_varnames, co_freevars, and co_cellvars member caches * _PyOpcode_Deopt is a new mapping from all opcodes to their un-quickened forms. * _PyOpcode_InlineCacheEntries is renamed to _PyOpcode_Caches * _Py_IncrementCountAndMaybeQuicken is renamed to _PyCode_Warmup * _Py_Quicken is renamed to _PyCode_Quicken * _co_quickened is renamed to _co_code_adaptive (and is now a read-only memoryview). * Do not emit unused nonzero opargs anymore in the compiler.
* bpo-46198: rename duplicate tests and remove unused code (GH-30297)Nikita Sobolev2022-03-101-1/+1
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* bpo-46841: Use inline caching for `COMPARE_OP` (GH-31622)Brandt Bucher2022-03-011-1/+3
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* bpo-46841: Use *inline* caching for `BINARY_OP` (GH-31543)Brandt Bucher2022-02-251-1/+3
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* bpo-46329: Change calling sequence (again) (GH-31373)Mark Shannon2022-02-181-1/+1
| | | | * Change calling sequence: Add PUSH_NULL. Merge PRECALL_FUNCTION and PRECALL_METHOD into PRECALL.
* bpo-46724: Use `JUMP_ABSOLUTE` for all backward jumps. (GH-31326)Mark Shannon2022-02-151-0/+10
| | | | | | | | | * Make sure all backward jumps use JUMP_ABSOLUTE. * Add news. * Fix up news item. * Make test use consistent style.
* bpo-46329: Split calls into precall and call instructions. (GH-30855)Mark Shannon2022-01-281-4/+3
| | | | | | | | | | | | | | * Add PRECALL_FUNCTION opcode. * Move 'call shape' varaibles into struct. * Replace CALL_NO_KW and CALL_KW with KW_NAMES and CALL instructions. * Specialize for builtin methods taking using the METH_FASTCALL | METH_KEYWORDS protocol. * Allow kwnames for specialized calls to builtin types. * Specialize calls to tuple(arg) and str(arg).
* bpo-46409: Make generators in bytecode (GH-30633)Mark Shannon2022-01-201-2/+2
| | | | | | | | | | | | * Add RETURN_GENERATOR and JUMP_NO_INTERRUPT opcodes. * Trim frame and generator by word each. * Minor refactor of frame.c * Update test.test_sys to account for smaller frames. * Treat generator functions as normal functions when evaluating and specializing.
* bpo-45923: Handle call events in bytecode (GH-30364)Mark Shannon2022-01-061-15/+16
| | | | * Add a RESUME instruction to handle "call" events.
* bpo-44525: Split calls into PRECALL and CALL (GH-30011)Mark Shannon2021-12-141-3/+3
| | | | | | | | | | * Add 3 new opcodes for calls: PRECALL_METHOD, CALL_NO_KW, CALL_KW. * Update specialization to handle new CALL opcodes. * Specialize call to method descriptors. * Remove old CALL opcodes: CALL_FUNCTION, CALL_METHOD, CALL_METHOD_KW, CALL_FUNCTION_KW.
* bpo-45292: [PEP-654] add except* (GH-29581)Irit Katriel2021-12-141-0/+33
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* bpo-42918: Improve build-in function compile() in mode 'single' (GH-29934)Weipeng Hong2021-12-101-0/+2
| | | Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* bpo-45636: Merge all numeric operators (GH-29482)Brandt Bucher2021-11-111-18/+20
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* bpo-45056: Remove trailing unused constants from co_consts (GH-28109)Inada Naoki2021-09-021-0/+11
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* bpo-44622: Set line number of END_ASYNC_FOR to match that of iterator. ↵Mark Shannon2021-07-151-1/+11
| | | | (GH-27160)
* bpo-43950: Add option to opt-out of PEP-657 (GH-27023)Ammar Askar2021-07-071-2/+2
| | | | | Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-43950: use 0-indexed column offsets for bytecode positions (GH-27011)Batuhan Taskaya2021-07-041-10/+10
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* bpo-43950: Add code.co_positions (PEP 657) (GH-26955)Pablo Galindo2021-07-021-0/+114
| | | | | | | | | | | | | | | This PR is part of PEP 657 and augments the compiler to emit ending line numbers as well as starting and ending columns from the AST into compiled code objects. This allows bytecodes to be correlated to the exact source code ranges that generated them. This information is made available through the following public APIs: * The `co_positions` method on code objects. * The C API function `PyCode_Addr2Location`. Co-authored-by: Batuhan Taskaya <isidentical@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-44313: generate LOAD_ATTR/CALL_FUNCTION for top-level imported objects ↵Batuhan Taskaya2021-06-301-0/+36
| | | | (GH-26677)
* bpo-44297: Fix missing line number in generator expressions (GH-26801)Mark Shannon2021-06-211-0/+15
| | | * Make sure that line number is set when entering comprehension scope in compiler.
* bpo-43833: Emit warnings for numeric literals followed by keyword (GH-25466)Serhiy Storchaka2021-06-081-1/+1
| | | | | | | | Emit a deprecation warning if the numeric literal is immediately followed by one of keywords: and, else, for, if, in, is, or. Raise a syntax error with more informative message if it is immediately followed by other keyword or identifier. Automerge-Triggered-By: GH:pablogsal
* bpo-42609: Check recursion depth in the AST validator and optimizer (GH-23744)Serhiy Storchaka2021-04-251-7/+12
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* bpo-43846: Use less stack for large literals and calls (GH-25403)Mark Shannon2021-04-151-0/+26
| | | | | | | | | * Modify compiler to reduce stack consumption for large expressions. * Add more tests for stack usage. * Add NEWS item. * Raise SystemError for truly excessive stack use.
* bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25145)Inada Naoki2021-04-041-1/+1
| | | | | | | | | | | | | | | | | | | * test_asyncio * test_bz2 * test_math * test_cmath * test_cmd_line * test_cmd_line_script * test_compile * test_contextlib * test_profile * ctypes/test/test_find * test_multiprocessing * test_configparser * test_csv * test_dbm_dumb * test_decimal * test_difflib * os.fdopen() calls io.text_encoding() to emit EncodingWarning for right place.
* Mark POP_TOP at end of expression statement as artificial, to conform to PEP ↵Mark Shannon2021-03-151-0/+8
| | | | 626. (GH-24860)
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