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103 Commits

Author SHA1 Message Date
Lysandros Nikolaou 6d65087655
bpo-40334: Disallow invalid single statements in the new parser (GH-19774) 
After parsing is done in single statement mode, the tokenizer buffer has to be checked for additional lines and a `SyntaxError` must be raised, in case there are any.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
 2020-04-29 02:42:27 +01:00
Victor Stinner 1def7754b7
bpo-40334: Rename PyConfig.use_peg to _use_peg_parser (GH-19670) 
* Rename PyConfig.use_peg to _use_peg_parser
* Document PyConfig._use_peg_parser and mark it a deprecated
* Mark -X oldparser option and PYTHONOLDPARSER env var as deprecated
  in the documentation.
* Add use_old_parser() and skip_if_new_parser() to test.support
* Remove sys.flags.use_peg: use_old_parser() uses
  _testinternalcapi.get_configs() instead.
* Enhance test_embed tests
* subprocess._args_from_interpreter_flags() copies -X oldparser
 2020-04-23 03:03:24 +02:00
Pablo Galindo c5fc156852
bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503) 
Co-authored-by: Guido van Rossum <guido@python.org>
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
 2020-04-22 23:29:27 +01:00
Pablo Galindo 6c3e66a34b
bpo-38640: Allow break and continue in always false while loops (GH-16992) 2019-10-30 11:53:26 +00:00
Pablo Galindo 18c5f9d44d bpo-37500: Make sure dead code does not generate bytecode but also detect 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
 2019-07-15 02:15:01 -07:00
INADA Naoki f7e4d3642f bpo-34100: compile: Re-enable frozenset merging (GH-10760) 
This reverts commit 1005c84535.
 2018-11-28 16:58:46 +01:00
Victor Stinner 1005c84535
bpo-34100: Partially revert merge_consts_recursive() (GH-10743) 
Partically revert commit c2e1607a51 to
fix a reference leak.
 2018-11-27 15:12:47 +01:00
INADA Naoki c2e1607a51 bpo-34100: Merge constants recursively (GH-8341) 
There are some same consts in a module.  This commit merges them into
single instance.  It reduces number of objects in memory after loading modules.


https://bugs.python.org/issue34100
 2018-11-26 04:23:22 -08:00
Gregory P. Smith 49fa4a9f1e
bpo-35193: Fix an off by one error in the RETURN_VALUE case. (GH-10418) 
Fix an off by one error in the peephole optimizer when checking for unreachable code beyond a return.

Do a bounds check within find_op so it can return before going past the end as a safety measure.

7db3c48833 (diff-a33329ae6ae0bb295d742f0caf93c137)
introduced this off by one error while fixing another one nearby.

This bug was shipped in all Python 3.6 and 3.7 releases.

The included unittest won't fail unless you do a clang msan build.
 2018-11-08 17:55:07 -08:00
Serhiy Storchaka 34fd4c2019
bpo-35133: Fix mistakes when concatenate string literals on different lines. (GH-10284) 
Two kind of mistakes:

1. Missed space. After concatenating there is no space between words.

2. Missed comma. Causes unintentional concatenating in a list of strings.
 2018-11-05 16:20:25 +02:00
Serhiy Storchaka fe2bbb1869
bpo-32489: Allow 'continue' in 'finally' clause. (GH-5822) 2018-03-18 09:56:52 +02:00
Serhiy Storchaka b21d155f57
bpo-32964: Reuse a testing implementation of the path protocol in tests. (#5930) 2018-03-02 11:53:51 +02:00
Serhiy Storchaka 782d6fe443
bpo-31113: Get rid of recursion in the compiler for normal control flow. (#3015) 2018-01-11 20:20:13 +02:00
Serhiy Storchaka d4864c61e3
bpo-24340: Fix estimation of the code stack size. (#5076) 2018-01-09 21:54:52 +02:00
Serhiy Storchaka 3325a6780c
bpo-27169: The __debug__ constant is now optimized out at compile time. (#4880) 
This fixes also bpo-22091.
 2017-12-15 12:35:48 +02:00
Serhiy Storchaka 067cbd02bf Issue #29337: Fixed possible BytesWarning when compare the code objects. 
Warnings could be emitted at compile time.
 2017-01-24 20:54:07 +02:00
Serhiy Storchaka 4102d25b7e Issue #29337: Fixed possible BytesWarning when compare the code objects. 
Warnings could be emitted at compile time.
 2017-01-24 20:52:43 +02:00
Serhiy Storchaka 713640c4c9 Issue #29337: Fixed possible BytesWarning when compare the code objects. 
Warnings could be emitted at compile time.
 2017-01-24 20:49:26 +02:00
Serhiy Storchaka 5bb8b9134b Issue #18896: Python function can now have more than 255 parameters. 
collections.namedtuple() now supports tuples with more than 255 elements.
 2016-12-16 19:19:02 +02:00
Brett Cannon a571120410 Issue #27182: Add support for path-like objects to PyUnicode_FSDecoder(). 2016-09-06 19:36:01 -07:00
Serhiy Storchaka febc332056 Issue #26754: Undocumented support of general bytes-like objects 
as path in compile() and similar functions is now deprecated.
 2016-08-06 23:29:29 +03:00
Serhiy Storchaka 9305d83425 Issue #26754: PyUnicode_FSDecoder() accepted a filename argument encoded as 
an iterable of integers. Now only strings and byte-like objects are accepted.
 2016-06-18 13:53:36 +03:00
Victor Stinner 3cdd5fb970 code_richcompare() now uses the constants types 
Issue #25843: When compiling code, don't merge constants if they are equal but
have a different types. For example, "f1, f2 = lambda: 1, lambda: 1.0" is now
correctly compiled to two different functions: f1() returns 1 (int) and f2()
returns 1.0 (int), even if 1 and 1.0 are equal.

Add a new _PyCode_ConstantKey() private function.
 2016-01-22 12:33:12 +01:00
Serhiy Storchaka 7e2b870b85 Issue #25388: Fixed tokenizer crash when processing undecodable source code 
with a null byte.
 2015-11-14 15:11:17 +02:00
Serhiy Storchaka 0d441119f5 Issue #25388: Fixed tokenizer crash when processing undecodable source code 
with a null byte.
 2015-11-14 15:10:35 +02:00
Martin Panter eeb896c411 Issue #24802: Copy bytes-like objects to null-terminated buffers if necessary 
This avoids possible buffer overreads when int(), float(), compile(), exec()
and eval() are passed bytes-like objects. Similar code is removed from the
complex() constructor, where it was not reachable.

Patch by John Leitch, Serhiy Storchaka and Martin Panter.
 2015-11-07 02:32:21 +00:00
Martin Panter d61d860ed3 Issue #24802: Update test case for ValueError in 3.5 2015-11-08 11:09:13 +00:00
Martin Panter 61d6e4ae9d Issue #24802: Merge null termination fixes from 3.4 into 3.5 2015-11-07 02:56:11 +00:00
Yury Selivanov f488fb422a Issue #19235: Add new RecursionError exception. Patch by Georg Brandl. 2015-07-03 01:04:23 -04:00
Benjamin Peterson ee85339cc6 in dict displays, evaluate the key before the value (closes #11205) 
Patch partially by Steve Dougherty.
 2015-05-28 14:30:26 -05:00
Berker Peksag 076dbd0560 Fix remaining tests and remove an unused import. 2015-05-06 07:01:52 +03:00
Benjamin Peterson 273a720f87 merge 3.4 (#24022) 2015-04-21 12:07:06 -04:00
Benjamin Peterson d73aca769f do not call into python api if an exception is set (#24022) 2015-04-21 12:05:19 -04:00
Brett Cannon f299abdafa Issue #23731: Implement PEP 488. 
The concept of .pyo files no longer exists. Now .pyc files have an
optional `opt-` tag which specifies if any extra optimizations beyond
the peepholer were applied.
 2015-04-13 14:21:02 -04:00
Serhiy Storchaka 607cb9cf99 Issue #22221: Add tests for compile() with source encoding cookie. 2014-09-05 11:00:56 +03:00
Antoine Pitrou 9961405ed1 Issue #21523: Fix over-pessimistic computation of the stack effect of some opcodes in the compiler. 
This also fixes a quadratic compilation time issue noticeable when compiling
code with a large number of "and" and "or" operators.
 2014-05-23 11:46:03 +02:00
Serhiy Storchaka 9594942716 Issue #18783: Removed existing mentions of Python long type in docstrings, 
error messages and comments.
 2013-08-27 19:40:23 +03:00
Nick Coghlan aab9c2b2ea Issue #5765: Apply a hard recursion limit in the compiler 
Previously, excessive nesting in expressions would blow the
stack and segfault the interpreter. Now, a hard limit based
on the configured recursion limit and a hardcoded scaling
factor is applied.
 2012-11-04 23:14:34 +10:00
Benjamin Peterson 77fc1f3c06 add another test case 2012-01-20 11:01:06 -05:00
Benjamin Peterson cff9237d57 check after comments, too (#13832) 2012-01-19 17:46:13 -05:00
Meador Inge fa21bf015d Issue #12705: Raise SyntaxError when compiling multiple statements as single interactive statement 2012-01-19 01:08:41 -06:00
Benjamin Peterson 43b068648e try to use the same str object for all code filenames when compiling or unmarshalling (#12190) 
This should reduce memory usage.
 2011-05-27 09:08:01 -05:00
Ezio Melotti 4969f709cc #11515: Merge with 3.1. 2011-03-15 05:59:46 +02:00
Ezio Melotti 42da663e6f #11515: fix several typos. Patch by Piotr Kasprzyk. 2011-03-15 05:18:48 +02:00
Benjamin Peterson 5d2ad25252 bring back commented out test 2010-03-17 20:57:32 +00:00
Benjamin Peterson e6dd2cb63d Merged revisions 79034 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79034 | benjamin.peterson | 2010-03-17 15:41:42 -0500 (Wed, 17 Mar 2010) | 1 line

  prevent lambda functions from having docstrings #8164
........
 2010-03-17 20:56:58 +00:00
Ezio Melotti e96159335f Merged revisions 77727 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r77727 | ezio.melotti | 2010-01-24 18:58:36 +0200 (Sun, 24 Jan 2010) | 1 line

  use assert[Not]IsInstance where appropriate
........
 2010-01-24 19:26:24 +00:00
Ezio Melotti b58e0bd8bb use assert[Not]In where appropriate 2010-01-23 15:40:09 +00:00
Benjamin Peterson 577473fe68 use assert[Not]In where appropriate 
A patch from Dave Malcolm.
 2010-01-19 00:09:57 +00:00
Benjamin Peterson aeaa592516 Merged revisions 76230 via svnmerge from 
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76230 | benjamin.peterson | 2009-11-12 17:39:44 -0600 (Thu, 12 Nov 2009) | 2 lines

  fix several compile() issues by translating newlines in the tokenizer
........
 2009-11-13 00:17:59 +00:00