* Uses a better hashing algorithm to get better dispersion and remove commutativity.
* Incorporates `co_firstlineno`, `Py_SIZE(co)`, and bytecode instructions.
* This is now the entire set of criteria used in `code_richcompare`, except for `_PyCode_ConstantKey` (which would incorporate the types of `co_consts` rather than just their values).
This makes calls to co_lnotab to exercise this code, as well
as generating synthetically large code to exercise the corner
cases where line numbers need multiple bytes.
Automerge-Triggered-By: GH:brandtbucher
- c_longlong and c_longdouble need experimental WASM bigint.
- Skip tests that need threading
- Define ``CTYPES_MAX_ARGCOUNT`` for Emscripten. libffi-emscripten 2022-06-23 supports up to 1000 args.
* 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
* 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.
While the comment said 'We don't bother resizing localspluskinds',
this would cause .replace() to crash when it happened.
(Also types.CodeType(), but testing that is tedious, and this tests all
code paths.)
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>
* Move up the comment about fields using in hashing/comparision.
* Group the fields more clearly.
* Add co_ncellvars and co_nfreevars.
* Raise ValueError if nlocals != len(varnames), rather than aborting.
"Zero cost" exception handling.
* Uses a lookup table to determine how to handle exceptions.
* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements.
* Reduces the size of the frame object by about 60%.
* Add length parameter to PyLineTable_InitAddressRange and doen't use sentinel values at end of table. Makes the line number table more robust.
* Update PyCodeAddressRange to match PEP 626.
This commit contains the implementation of PEP570: Python positional-only parameters.
* Update Grammar/Grammar with new typedarglist and varargslist
* Regenerate grammar files
* Update and regenerate AST related files
* Update code object
* Update marshal.c
* Update compiler and symtable
* Regenerate importlib files
* Update callable objects
* Implement positional-only args logic in ceval.c
* Regenerate frozen data
* Update standard library to account for positional-only args
* Add test file for positional-only args
* Update other test files to account for positional-only args
* Add News entry
* Update inspect module and related tests
Previously, CO_NOFREE was set in the compiler, which meant
it could end up being set incorrectly when code objects
were created directly. Setting it in the constructor based
on freevars and cellvars ensures it is always accurate,
regardless of how the code object is defined.
svn+ssh://pythondev@svn.python.org/python/trunk
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r79060 | collin.winter | 2010-03-18 14:54:01 -0700 (Thu, 18 Mar 2010) | 4 lines
Add support for weak references to code objects. This will be used by an optimization in the incoming Python 3 JIT.
Patch by Reid Kleckner!
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svn+ssh://pythondev@svn.python.org/python/trunk
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r72487 | jeffrey.yasskin | 2009-05-08 17:51:06 -0400 (Fri, 08 May 2009) | 7 lines
PyCode_NewEmpty:
Most uses of PyCode_New found by http://www.google.com/codesearch?q=PyCode_New
are trying to build an empty code object, usually to put it in a dummy frame
object. This patch adds a PyCode_NewEmpty wrapper which lets the user specify
just the filename, function name, and first line number, instead of also
requiring lots of code internals.
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r72488 | jeffrey.yasskin | 2009-05-08 18:23:21 -0400 (Fri, 08 May 2009) | 13 lines
Issue 5954, PyFrame_GetLineNumber:
Most uses of PyCode_Addr2Line
(http://www.google.com/codesearch?q=PyCode_Addr2Line) are just trying to get
the line number of a specified frame, but there's no way to do that directly.
Forcing people to go through the code object makes them know more about the
guts of the interpreter than they should need.
The remaining uses of PyCode_Addr2Line seem to be getting the line from a
traceback (for example,
http://www.google.com/codesearch/p?hl=en#u_9_nDrchrw/pygame-1.7.1release/src/base.c&q=PyCode_Addr2Line),
which is replaced by the tb_lineno field. So we may be able to deprecate
PyCode_Addr2Line entirely for external use.
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r72879 | jeffrey.yasskin | 2009-05-23 19:23:01 -0400 (Sat, 23 May 2009) | 14 lines
Issue #6042:
lnotab-based tracing is very complicated and isn't documented very well. There
were at least 3 comment blocks purporting to document co_lnotab, and none did a
very good job. This patch unifies them into Objects/lnotab_notes.txt which
tries to completely capture the current state of affairs.
I also discovered that we've attached 2 layers of patches to the basic tracing
scheme. The first layer avoids jumping to instructions that don't start a line,
to avoid problems in if statements and while loops. The second layer
discovered that jumps backward do need to trace at instructions that don't
start a line, so it added extra lnotab entries for 'while' and 'for' loops, and
added a special case for backward jumps within the same line. I replaced these
patches by just treating forward and backward jumps differently.
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svn+ssh://pythondev@svn.python.org/python/trunk
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r62090 | brett.cannon | 2008-04-01 07:37:43 -0500 (Tue, 01 Apr 2008) | 3 lines
Generalize test.test_support.test_stdout() with a base context manager so that
it is easy to capture stderr if desired.
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r62091 | brett.cannon | 2008-04-01 07:46:02 -0500 (Tue, 01 Apr 2008) | 3 lines
Add ``if __name__ == '__main__'`` to some test files where it didn't take a lot
of effort to do so.
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r62096 | amaury.forgeotdarc | 2008-04-01 17:52:48 -0500 (Tue, 01 Apr 2008) | 4 lines
Newly enabled test appears to leak:
it registers the same codec on each iteration.
Do it only once at load time.
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r62100 | amaury.forgeotdarc | 2008-04-01 19:55:04 -0500 (Tue, 01 Apr 2008) | 4 lines
A DocTestSuite cannot run multiple times: it clears its globals dictionary after the first run.
Rebuild the DocTestSuite on each iteration.
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r62102 | jeffrey.yasskin | 2008-04-01 23:07:44 -0500 (Tue, 01 Apr 2008) | 3 lines
Try to make test_signal less flaky. I still see some flakiness in
test_itimer_prof.
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r62110 | vinay.sajip | 2008-04-02 16:09:27 -0500 (Wed, 02 Apr 2008) | 1 line
Fix: #2315, #2316, #2317: TimedRotatingFileHandler - changed logic to better handle daylight savings time, deletion of old log files, and fixed a bug in calculating rollover when no logging occurs for a longer interval than the rollover period.
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r62111 | vinay.sajip | 2008-04-02 16:10:23 -0500 (Wed, 02 Apr 2008) | 1 line
Added updates with respect to recent changes to TimedRotatingFileHandler.
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r62112 | vinay.sajip | 2008-04-02 16:17:25 -0500 (Wed, 02 Apr 2008) | 1 line
Added updates with respect to recent changes to TimedRotatingFileHandler.
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r62113 | amaury.forgeotdarc | 2008-04-02 16:18:46 -0500 (Wed, 02 Apr 2008) | 2 lines
Remove debug prints; the buildbot now passes the tests
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r62114 | benjamin.peterson | 2008-04-02 16:20:35 -0500 (Wed, 02 Apr 2008) | 2 lines
Suggested proposed changes to Python be considered on some mailing lists first
........
Dennis Sweeney
Irit Katriel
Brandt Bucher
serge-sans-paille
Brandt Bucher
Michael Droettboom
Christian Heimes
Mark Shannon
Serhiy Storchaka
andrei kulakov
Guido van Rossum
Ammar Askar
Gabriele N. Tornetta
Batuhan Taskaya
Pablo Galindo
Eric Snow
Victor Stinner
Adam Johnson
Victor Stinner
Nick Coghlan
Victor Stinner
Dino Viehland
Antoine Pitrou
Ezio Melotti
Collin Winter
Alexandre Vassalotti
Benjamin Peterson
Neal Norwitz