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Author SHA1 Message Date
Brett Cannon
e1c4d56fdd
gh-65961: Do not rely solely on __cached__ (GH-97990) 
Make sure `__spec__.cached` (at minimum) can be used.
 2022-10-06 15:40:22 -07:00
Irit Katriel
4c72517cad
gh-93554: Conditional jump opcodes only jump forward (GH-96318) 2022-09-01 21:36:47 +01:00
Brandt Bucher
5bfb3c372b
GH-90997: Wrap yield from/await in a virtual try/except StopIteration (GH-96010) 2022-08-19 12:33:44 -07:00
Barry Warsaw
e1182bc377
gh-94619: Remove long deprecated methods module_repr() and load_module() (#94624) 
* gh-94619: Remove long deprecated methods module_repr() and load_module()

Closes #94619

* Update Misc/NEWS.d/next/Library/2022-07-06-14-57-33.gh-issue-94619.PRqKVX.rst

Fix typo

Co-authored-by: Brett Cannon <brett@python.org>

Co-authored-by: Brett Cannon <brett@python.org>
 2022-08-04 17:24:26 -07:00
Thomas Grainger
6da988a46c
gh-91181: drop support for bytes on sys.path (GH-31934) 
Support for bytes broke sometime between Python 3.2 and 3.6 and has been broken ever since. Trying to bring back supports is surprisingly difficult in the face of -b and checking for keys in sys.path_importer_cache. Since the support was broken for so long, trying to overcome the difficulty of bringing back the support has been deemed not worth it.

Co-authored-by: Eryk Sun <eryksun@gmail.com>
Co-authored-by: Brett Cannon <brett@python.org>
 2022-07-16 18:07:53 -07:00
Irit Katriel
324d01944d
gh-94485: Set line number of module's RESUME instruction to 0, as specified by PEP 626 (GH-94552) 
Co-authored-by: Mark Shannon <mark@hotpy.org>
 2022-07-05 14:38:44 +02:00
Mark Shannon
c0453a40fa
GH-94163: Add BINARY_SLICE and STORE_SLICE instructions. (GH-94168) 2022-06-27 12:24:23 +01:00
Dennis Sweeney
5fcfdd87c9
GH-91432: Specialize FOR_ITER (GH-91713) 
* Adds FOR_ITER_LIST and FOR_ITER_RANGE specializations.

* Adds _PyLong_AssignValue() internal function to avoid temporary boxing of ints.
 2022-06-21 11:19:26 +01:00
Ken Jin
b083450f88
GH-93429: Merge LOAD_METHOD back into LOAD_ATTR (GH-93430) 2022-06-14 11:36:22 +01:00
Christian Heimes
09243b898a
gh-93461: Invalidate sys.path_importer_cache entries with relative paths (GH-93653) 2022-06-10 23:56:26 +02:00
Mark Shannon
f012df706c
Shrink the LOAD_METHOD cache by one codeunit. (#93537) 2022-06-07 10:28:53 +01:00
Dennis Sweeney
f425f3bb27
gh-93143: Avoid NULL check in LOAD_FAST based on analysis in the compiler (GH-93144) 2022-05-31 16:32:30 -04:00
Mark Shannon
3fd8610002
GH-89914: Make the oparg of the YIELD_VALUE instruction equal the stack depth. (GH-92960) 2022-05-19 17:49:29 +01:00
Mark Shannon
e48ac9c100
GH-90690: Remove PRECALL instruction (GH-92925) 2022-05-19 11:05:26 +01:00
Dennis Sweeney
37c6db60f9
gh-91869: Fix tracing of specialized instructions with extended args (GH-91945) 2022-04-27 22:36:34 -06:00
Mark Shannon
944fffee89
GH-88116: Use a compact format to represent end line and column offsets. (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
 2022-04-21 16:10:37 +01:00
Irit Katriel
ea2ae02607
gh-91276: Make JUMP_IF_TRUE_OR_POP/JUMP_IF_FALSE_OR_POP relative (GH-32215) 2022-04-15 20:19:24 +01:00
Irit Katriel
dd207a6ac5
bpo-47120: make POP_JUMP_IF_TRUE/FALSE/NONE/NOT_NONE relative (GH-32400) 2022-04-11 10:40:24 +01:00
Irit Katriel
0aa8d5cbd8
bpo-47120: make JUMP_NO_INTERRUPT relative (GH-32221) 2022-04-05 12:49:08 +01:00
Irit Katriel
32091df41c
bpo-47186: Replace JUMP_IF_NOT_EG_MATCH by CHECK_EG_MATCH + jump (GH-32309) 2022-04-05 12:06:22 +01:00
Irit Katriel
04e07c258f
bpo-47186: Replace JUMP_IF_NOT_EXC_MATCH by CHECK_EXC_MATCH + jump (GH-32231) 2022-04-01 13:59:38 +01:00
Irit Katriel
a00518d9ad
bpo-47120: Replace the JUMP_ABSOLUTE opcode by the relative JUMP_BACKWARD (GH-32115) 2022-03-31 14:14:15 +01:00
Mark Shannon
3011a097bd
Use low bit of LOAD_GLOBAL's oparg to indicate whether it should push an additional NULL. (GH-31933) 2022-03-17 16:14:57 +00:00
Brandt Bucher
5498a61c7c
bpo-46841: Don't use an oparg counter for STORE_SUBSCR (GH-31742) 2022-03-08 15:53:22 +00:00
Brandt Bucher
f193631387
bpo-46841: Use inline caching for calls (GH-31709) 2022-03-07 11:45:00 -08:00
Serhiy Storchaka
6927632492
Remove trailing spaces (GH-31695) 2022-03-05 17:47:00 +02:00
Brandt Bucher
586b24d3be
bpo-46841: Fix error message hacks in GET_AWAITABLE (GH-31664) 2022-03-04 12:41:17 +00:00
Brandt Bucher
05a8bc1c94
bpo-46841: Use inline caching for attribute accesses (GH-31640) 2022-03-03 15:31:00 -08:00
Mark Shannon
3b0f1c5a71
bpo-46841: Use inline cache for BINARY_SUBSCR. (GH-31618) 2022-03-01 16:00:34 +00:00
Brandt Bucher
7820a5897e
bpo-46841: Use inline caching for COMPARE_OP (GH-31622) 2022-03-01 13:53:13 +00:00
Mark Shannon
4558af5a8f
bpo-46841: Move the cache for LOAD_GLOBAL inline. (GH-31575) 2022-02-28 12:56:29 +00:00
Brandt Bucher
424ecab494
bpo-46841: Use inline caching for UNPACK_SEQUENCE (GH-31591) 2022-02-28 11:54:14 +00:00
Brandt Bucher
0f41aac109
bpo-46841: Use *inline* caching for BINARY_OP (GH-31543) 2022-02-25 12:11:34 +00:00
Mark Shannon
59585d6b2e
bpo-46329: Streamline calling sequence a bit. (GH-31465) 
* Move handling of bound-methods to PRECALL.

* Remove call_shape.postcall_shrink

* Remove call_shape.callable

* Remove call_shape.callable. Change CALL oparg to match PRECALL oparg.

* Move KW_NAMES before PRECALL.

* Update opcode docs in dis.rst
 2022-02-21 18:26:47 +00:00
Mark Shannon
cf345e945f
bpo-46329: Change calling sequence (again) (GH-31373) 
* Change calling sequence: Add PUSH_NULL. Merge PRECALL_FUNCTION and PRECALL_METHOD into PRECALL.
 2022-02-18 17:19:08 +00:00
Mark Shannon
89fd7c3452
bpo-46329: Split calls into precall and call instructions. (GH-30855) 
* 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).
 2022-01-28 12:42:30 +00:00
Brandt Bucher
8548366864
bpo-46528: Simplify the VM's stack manipulations (GH-30902) 2022-01-26 12:47:45 -08:00
Mark Shannon
0367a36fdc
bpo-43683: Streamline YIELD_VALUE and SEND (GH-30723) 
* Split YIELD_VALUE into ASYNC_GEN_WRAP; YIELD_VALUE for async generators.

* Split SEND into SEND; YIELD_VALUE.

* Document new opcodes.
 2022-01-24 11:08:53 +00:00
Mark Shannon
b04dfbbe4b
bpo-46409: Make generators in bytecode (GH-30633) 
* 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.
 2022-01-20 11:46:39 +00:00
Mark Shannon
e028ae99ec
bpo-45923: Handle call events in bytecode (GH-30364) 
* Add a RESUME instruction to handle "call" events.
 2022-01-06 13:09:25 +00:00
penguin_wwy
3db762db72
bpo-46031: add POP_JUMP_IF_NOT_NONE and POP_JUMP_IF_NONE (GH-30019) 2022-01-06 11:38:35 +00:00
Brandt Bucher
31e43cbe5f
bpo-46009: Remove GEN_START (GH-30367) 2022-01-04 11:38:32 -08:00
Irit Katriel
a94461d718
bpo-46202: Remove opcode POP_EXCEPT_AND_RERAISE (GH-30302) 
* bpo-46202: remove opcode POP_EXCEPT_AND_RERAISE

* do not assume that an exception group is truthy
 2022-01-04 10:37:12 +00:00
Irit Katriel
65e7c1f90e
bpo-46219, 46221: simplify except* implementation following exc_info changes. Move helpers to exceptions.c. Do not assume that exception groups are truthy. (GH-30289) 2022-01-02 23:22:42 +00:00
Irit Katriel
396b58345f
bpo-45711: Remove type and traceback from exc_info (GH-30122) 
* Do not PUSH/POP traceback or type to the stack as part of exc_info

* Remove exc_traceback and exc_type from _PyErr_StackItem

* Add to what's new, because this change breaks things like Cython
 2021-12-17 14:46:22 +00:00
Mark Shannon
0b50a4f0cd
bpo-46039: Split yield from in two (GH-30035) 
* Split YIELD_FROM opcode into SEND and JUMP_ABSOLUTE.

* Remove YIELD_FROM opcode.
 2021-12-15 10:30:09 +00:00
Mark Shannon
9f8f45144b
bpo-44525: Split calls into PRECALL and CALL (GH-30011) 
* 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.
 2021-12-14 18:22:44 +00:00
Irit Katriel
d60457a667
bpo-45292: [PEP-654] add except* (GH-29581) 2021-12-14 16:48:15 +00:00
Miro Hrončok
ae1965ccb4
bpo-45703: Invalidate _NamespacePath cache on importlib.invalidate_ca… (GH-29384) 
Consider the following directory structure:

    .
    └── PATH1
        └── namespace
            └── sub1
                └── __init__.py

And both PATH1 and PATH2 in sys path:

    $ PYTHONPATH=PATH1:PATH2 python3.11
    >>> import namespace
    >>> import namespace.sub1
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace'])
    >>> ...

While this interpreter still runs, PATH2/namespace/sub2 is created:

    .
    ├── PATH1
    │   └── namespace
    │       └── sub1
    │           └── __init__.py
    └── PATH2
        └── namespace
            └── sub2
                └── __init__.py

The newly created module cannot be imported:

    >>> ...
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace'])
    >>> import namespace.sub2
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
    ModuleNotFoundError: No module named 'namespace.sub2'

Calling importlib.invalidate_caches() now newly allows to import it:

    >>> import importlib
    >>> importlib.invalidate_caches()
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace'])
    >>> import namespace.sub2
    >>> namespace.__path__
    _NamespacePath(['.../PATH1/namespace', '.../PATH2/namespace'])

This was not previously possible.
 2021-11-23 07:38:02 -08:00
Mark Shannon
135cabd328
bpo-44525: Copy free variables in bytecode to allow calls to inner functions to be specialized (GH-29595) 
* Make internal APIs that take PyFrameConstructor take a PyFunctionObject instead.

* Add reference to function to frame, borrow references to builtins and globals.

* Add COPY_FREE_VARS instruction to allow specialization of calls to inner functions.
 2021-11-23 09:53:24 +00:00