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* bpo-42246: Partial implementation of PEP 626. (GH-23113)Mark Shannon2020-11-121-99/+103
| | | * Implement new line number table format, as defined in PEP 626.
* bpo-42161: Use _PyLong_GetZero() and _PyLong_GetOne() (GH-22995)Victor Stinner2020-10-271-2/+4
| | | | Use _PyLong_GetZero() and _PyLong_GetOne() in Objects/ and Python/ directories.
* bpo-42006: Stop using PyDict_GetItem, PyDict_GetItemString and ↵Serhiy Storchaka2020-10-261-3/+3
| | | | | | | | | | | _PyDict_GetItemId. (GH-22648) These functions are considered not safe because they suppress all internal errors and can return wrong result. PyDict_GetItemString and _PyDict_GetItemId can also silence current exception in rare cases. Remove no longer used _PyDict_GetItemId. Add _PyDict_ContainsId and rename _PyDict_Contains into _PyDict_Contains_KnownHash.
* bpo-38605: Make 'from __future__ import annotations' the default (GH-20434)Batuhan Taskaya2020-10-061-12/+2
| | | | | The hard part was making all the tests pass; there are some subtle issues here, because apparently the future import wasn't tested very thoroughly in previous Python versions. For example, `inspect.signature()` returned type objects normally (except for forward references), but strings with the future import. We changed it to try and return type objects by calling `typing.get_type_hints()`, but fall back on returning strings if that function fails (which it may do if there are future references in the annotations that require passing in a specific namespace to resolve).
* bpo-39934: Account for control blocks in 'except' in compiler. (GH-22395)Mark Shannon2020-09-251-8/+11
| | | * Account for control blocks in 'except' in compiler. Fixes #39934.
* bpo-40941: Fix fold_tuple_on_constants() compiler warnings (GH-22378)Victor Stinner2020-09-231-4/+2
| | | | | | Add explicit casts to fix compiler warnings in fold_tuple_on_constants(). The limit of constants per code is now INT_MAX, rather than UINT_MAX.
* bpo-41746: Add type information to asdl_seq objects (GH-22223)Pablo Galindo2020-09-161-40/+37
| | | | | | | | | | | | | * 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-41531: Fix compilation of dict literals with more than 0xFFFF elements ↵Pablo Galindo2020-08-131-1/+1
| | | | (GH-21850)
* bpo-41463: Generate information about jumps from 'opcode.py' rather than ↵Mark Shannon2020-08-041-59/+73
| | | | | duplicating it in 'compile.c' (GH-21714) Generate information about jumps from 'opcode.py' rather than duplicate it in 'compile.c'
* bpo-41323: Perform 'peephole' optimizations directly on the CFG. (GH-21517)Mark Shannon2020-07-301-21/+353
| | | * Move 'peephole' optimizations into compile.c and perform them directly on the CFG.
* bpo-41218: Only mark async code with CO_COROUTINE. (#21357)Matthias Bussonnier2020-07-061-4/+6
| | | | | 3.8.3 had a regression where compiling with ast.PyCF_ALLOW_TOP_LEVEL_AWAIT woudl agressively mark things are coroutine even if there were not.
* bpo-39151: Simplify DFS in the assembler (GH-17733)Pablo Galindo2020-06-281-33/+18
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* bpo-40939: Remove the old parser (GH-20768)Pablo Galindo2020-06-111-15/+0
| | | 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.
* Make sure that keyword arguments are merged into the arguments dictionary ↵Mark Shannon2020-06-011-0/+3
| | | | when dict unpacking and keyword arguments are interleaved. (GH-20553)
* bpo-40334: Don't downcast from Py_ssize_t to int (GH-19671)Pablo Galindo2020-04-231-1/+1
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* bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)Pablo Galindo2020-04-221-0/+67
| | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
* bpo-40268: Add _PyInterpreterState_GetConfig() (GH-19492)Victor Stinner2020-04-131-3/+1
| | | | | | | | Don't access PyInterpreterState.config member directly anymore, but use new functions: * _PyInterpreterState_GetConfig() * _PyInterpreterState_SetConfig() * _Py_GetConfig()
* bpo-40147: Fix a compiler warning on Windows in Python/compile.c (GH-19389)Zackery Spytz2020-04-061-4/+5
| | | Change the type of nkeywords to Py_ssize_t.
* bpo-40147: Move the check for duplicate keywords to the compiler (GH-19289)Pablo Galindo2020-04-031-0/+29
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* bpo-40067: Improve error messages for multiple star expressions in ↵Furkan Önder2020-03-261-1/+1
| | | | | | assignments (GH-19168) Co-Authored-By: Batuhan Taşkaya <isidentical@gmail.com> Co-Authored-By: Pablo Galindo <Pablogsal@gmail.com>
* bpo-39882: Add _Py_FatalErrorFormat() function (GH-19157)Victor Stinner2020-03-251-16/+12
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* Use calloc-based functions, not malloc. (GH-19152)Andy Lester2020-03-251-8/+4
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* bpo-39562: Allow executing asynchronous comprehensions in the asyncio REPL ↵Batuhan Taşkaya2020-03-191-2/+5
| | | | | (GH-18968) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-39220: Do not optimise annotation if 'from __future__ import ↵Pablo Galindo2020-03-181-1/+5
| | | | | | annotations' is used (GH-17866) Do not apply AST-based optimizations if 'from __future__ import annotations' is used in order to prevent information lost in the final version of the annotations.
* bpo-39988: Remove ast.AugLoad and ast.AugStore node classes. (GH-19038)Serhiy Storchaka2020-03-171-100/+43
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* bpo-39987: Simplify setting lineno in the compiler. (GH-19037)Serhiy Storchaka2020-03-171-50/+18
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* bpo-39969: Remove ast.Param node class as is no longer used (GH-19020)Batuhan Taşkaya2020-03-151-18/+19
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* bpo-39965: Correctly raise SyntaxError if await is used outside async ↵Pablo Galindo2020-03-151-4/+8
| | | | functions when PyCF_ALLOW_TOP_LEVEL_AWAIT is set (GH-19010)
* closes bpo-39922: Remove unused args from four functions. (GH-18893)Andy Lester2020-03-111-17/+17
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* bpo-34822: Simplify AST for subscription. (GH-9605)Serhiy Storchaka2020-03-101-157/+45
| | | | | | | | | * 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-39890: Don't mutate the AST when compiling starred assignments (GH-18833)Brandt Bucher2020-03-081-2/+4
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* bpo-39639: Remove the AST "Suite" node and associated code (GH-18513)Batuhan Taşkaya2020-03-041-4/+0
| | | | | | | | 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-32856: Optimize the assignment idiom in comprehensions. (GH-16814)Serhiy Storchaka2020-02-121-18/+52
| | | | | Now `for y in [expr]` in comprehensions is as fast as a simple assignment `y = expr`.
* bpo-39573: Use Py_TYPE() macro in Python and Include directories (GH-18391)Victor Stinner2020-02-071-1/+1
| | | Replace direct access to PyObject.ob_type with Py_TYPE().
* bpo-39320: Handle unpacking of **values in compiler (GH-18141)Mark Shannon2020-01-271-32/+58
| | | | | | | | | | | | | * Add DICT_UPDATE and DICT_MERGE bytecodes. Use them for ** unpacking. * Remove BUILD_MAP_UNPACK and BUILD_MAP_UNPACK_WITH_CALL, as they are now unused. * Update magic number for ** unpacking opcodes. * Update dis.rst to incorporate new bytecodes. * Add blurb entry.
* bpo-39320: Handle unpacking of *values in compiler (GH-17984)Mark Shannon2020-01-231-96/+107
| | | | | | | | * Add three new bytecodes: LIST_TO_TUPLE, LIST_EXTEND, SET_UPDATE. Use them to implement star unpacking expressions. * Remove four bytecodes BUILD_LIST_UNPACK, BUILD_TUPLE_UNPACK, BUILD_SET_UNPACK and BUILD_TUPLE_UNPACK_WITH_CALL opcodes as they are now unused. * Update magic number and dis.rst for new bytecodes.
* Fix compiler warning on Windows (GH-18012)Ammar Askar2020-01-151-1/+1
| | | | | | | | Python-ast.h contains a macro named Yield that conflicts with the Yield macro in Windows system headers. While Python-ast.h has an "undef Yield" directive to prevent this, it means that Python-ast.h must be included before Windows header files or we run into a re-declaration warning. In commit c96be811fa7d an include for pycore_pystate.h was added which indirectly includes Windows header files. In this commit we re-order the includes to fix this warning.
* bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754)Mark Shannon2020-01-141-27/+44
| | | | | | | | Break up COMPARE_OP into four logically distinct opcodes: * COMPARE_OP for rich comparisons * IS_OP for 'is' and 'is not' tests * CONTAINS_OP for 'in' and 'is not' tests * JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
* Fix handling of line numbers around finally-blocks. (#17737)Mark Shannon2019-12-301-0/+4
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* bpo-38328: Speed up the creation time of constant list and set display. ↵Brandt Bucher2019-11-261-0/+22
| | | | (GH-17114)
* Produce cleaner bytecode for 'with' and 'async with' by generating separate ↵Mark Shannon2019-11-211-213/+233
| | | | | | code for normal and exceptional paths. (#6641) Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication. Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
* bpo-38640: Allow break and continue in always false while loops (GH-16992)Pablo Galindo2019-10-301-0/+8
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* Typo fix: "empy" should be "empty". (GH-16666)Hansraj Das2019-10-091-1/+1
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* Revert "Fix depth-first-search computation in compile.c (GH-16042)" (GH-16050)T. Wouters2019-09-121-24/+30
| | | | | This reverts commit 355f3e1e5caf16198255df573a1f5e8b98b30105. bpo-38135
* Fix depth-first-search computation in compile.c (GH-16042)Mark Shannon2019-09-121-30/+24
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* bpo-34880: Add the LOAD_ASSERTION_ERROR opcode. (GH-15073)Zackery Spytz2019-08-251-7/+3
| | | | Fix assert statement misbehavior if AssertionError is shadowed.
* bpo-37830: Fix compilation of break and continue in finally. (GH-15320)Serhiy Storchaka2019-08-241-11/+55
| | | | | | Fix compilation of "break" and "continue" in the "finally" block when the corresponding "try" block contains "return" with a non-constant value.
* Fix typos in comments, docs and test names (#15018)Min ho Kim2019-07-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | * Fix typos in comments, docs and test names * Update test_pyparse.py account for change in string length * Apply suggestion: splitable -> splittable Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu> * Apply suggestion: splitable -> splittable Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu> * Apply suggestion: Dealloccte -> Deallocate Co-Authored-By: Terry Jan Reedy <tjreedy@udel.edu> * Update posixmodule checksum. * Reverse idlelib changes.
* bpo-37500: Make sure dead code does not generate bytecode but also detect ↵Pablo Galindo2019-07-151-5/+64
| | | | | | | | | | | | syntax errors (GH-14612) https://bugs.python.org/issue37500 Add a new field to the compiler structure that allows to be configured so no bytecode is emitted. In this way is possible to detect errors by walking the nodes while preserving optimizations. https://bugs.python.org/issue37500
* bpo-37221: Add PyCode_NewWithPosOnlyArgs to be used internally and set ↵Pablo Galindo2019-07-011-7/+5
| | | | | | PyCode_New as a compatibility wrapper (GH-13959) Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper
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