Commit Graph

350 Commits

Author SHA1 Message Date
Neal Norwitz a7d329a9b2 Fix Coverity 180: Don't overallocate. We don't need structs, but pointers.
Also fix a memory leak.
2007-10-12 03:04:18 +00:00
Martin v. Löwis a5136196bc Patch #1031213: Decode source line in SyntaxErrors back to its original
source encoding. Will backport to 2.5.
2007-09-04 14:19:28 +00:00
Neal Norwitz 7b7d1c8282 Fix a couple of problems in generating the AST code:
* use %r instead of backticks since backticks are going away in Py3k
 * PyArena_Malloc() already sets PyErr_NoMemory so we don't need to do it again
 * the signature for ast2obj_int incorrectly used a bool, rather than a long
2007-02-26 18:10:47 +00:00
Brett Cannon 0db62aaf09 Modify Parser/asdl_c.py so that the __version__ number for Python/Python-ast.c
is specified at the top of the file.  Also add a note that Python/Python-ast.c
needs to be committed separately after a change to the AST grammar to capture
the revision number of the change (which is what __version__ is set to).
2007-02-12 03:51:02 +00:00
Brett Cannon 1fbe3ab5de Change a very minor inconsistency (that is purely cosmetic) in the AST
definition.
2007-02-11 05:36:00 +00:00
Martin v. Löwis 4885e7d098 Prefix AST symbols with _Py_. Fixes #1637022.
Will backport.
2007-01-19 06:42:22 +00:00
Andrew M. Kuchling 9b3a824097 Comment grammar 2006-10-06 18:51:55 +00:00
Georg Brandl a10d3afed2 Fix a bug in the parser's future statement handling that led to "with"
not being recognized as a keyword after, e.g., this statement:
from __future__ import division, with_statement
2006-09-24 12:35:36 +00:00
Neal Norwitz ca460d9722 with and as are now keywords. There are some generated files I can't recreate. 2006-09-06 06:28:06 +00:00
Neal Norwitz 9ac8953568 Handle malloc failure.
Klocwork 281
2006-08-13 18:13:36 +00:00
Neal Norwitz 6bf1a8fe8b Handle NULL nodes while parsing. I'm not entirely sure this is correct.
There might be something else that needs to be done to setup the error.

Klocwork #295.
2006-08-12 01:49:12 +00:00
Neal Norwitz 71e05f1e0c Don't truncate if size_t is bigger than uint 2006-06-12 02:07:57 +00:00
Andrew M. Kuchling 12ca69bc0e Fix comment typo 2006-06-06 17:10:41 +00:00
Neal Norwitz d21a7fffb1 Patch #1357836:
Prevent an invalid memory read from test_coding in case the done flag is set.
In that case, the loop isn't entered.  I wonder if rather than setting
the done flag in the cases before the loop, if they should just exit early.

This code looks like it should be refactored.

Backport candidate (also the early break above if decoding_fgets fails)
2006-06-02 06:23:00 +00:00
Martin v. Löwis 777367103c Patch #1475845: Raise IndentationError for unexpected indent. 2006-05-04 05:51:03 +00:00
Skip Montanaro a0b6338823 C++ compiler cleanup: cast signed to unsigned 2006-04-18 00:53:06 +00:00
Martin v. Löwis 7580149bde Patch #1355883: Build Python-ast.c and Python-ast.h
independently. Fixes #1355883.
2006-04-14 15:02:32 +00:00
Martin v. Löwis 0cc56e5c59 Introduce asdl_int_seq, to hold cmpop_ty. 2006-04-13 12:29:43 +00:00
Anthony Baxter 7b782b61c5 more low-hanging fruit to make code compile under a C++ compiler. Not
entirely happy with the two new VISIT macros in compile.c, but I
couldn't see a better approach.
2006-04-11 12:01:56 +00:00
Neal Norwitz 08062d6665 As discussed on python-dev, really fix the PyMem_*/PyObject_* memory API
mismatches.  At least I hope this fixes them all.

This reverts part of my change from yesterday that converted everything
in Parser/*.c to use PyObject_* API.  The encoding doesn't really need
to use PyMem_*, however, it uses new_string() which must return PyMem_*
for handling the result of PyOS_Readline() which returns PyMem_* memory.

If there were 2 versions of new_string() one that returned PyMem_*
for tokens and one that return PyObject_* for encodings that could
also fix this problem.  I'm not sure which version would be clearer.
This seems to fix both Guido's and Phillip's problems, so it's good enough
for now.  After this change, it would be good to review Parser/*.c
for consistent use of the 2 memory APIs.
2006-04-11 08:19:15 +00:00
Martin v. Löwis 01b810106c Make _kind types global for C++ compilation.
Explicitly cast void* to int to cmpop_ty.
2006-04-11 08:06:50 +00:00
Anthony Baxter 114900298e Fix the code in Parser/ to also compile with C++. This was mostly casts for
malloc/realloc type functions, as well as renaming one variable called 'new'
in tokensizer.c. Still lots more to be done, going to be checking in one
chunk at a time or the patch will be massively huge. Still compiles ok with
gcc.
2006-04-11 05:39:14 +00:00
Neal Norwitz 2c4e4f9839 SF patch #1467512, fix double free with triple quoted string in standard build.
This was the result of inconsistent use of PyMem_* and PyObject_* allocators.
By changing to use PyObject_* allocator almost everywhere, this removes
the inconsistency.
2006-04-10 06:42:25 +00:00
Jeremy Hylton 76c21bdb46 Make path calculation platform independent 2006-04-04 12:11:12 +00:00
Jeremy Hylton 2f327c14eb Add lineno, col_offset to excephandler to enable future fix for
tracing/line number table in except blocks.

Reflow long lines introduced by col_offset changes.  Update test_ast
to handle new fields in excepthandler.

As note in Python.asdl says, we might want to rethink how attributes
are handled.  Perhaps they should be the same as other fields, with
the primary difference being how they are defined for all types within
a sum.

Also fix asdl_c so that constructors with int fields don't fail when
passed a zero value.
2006-04-04 04:00:23 +00:00
Neal Norwitz 19379f18a6 * Fix a refleak of *_attributes.
* Cleanup formatting a bit (add spaces).
* Move static var initialized inside init_types() since that's the only place
  it's used.
2006-04-03 04:50:58 +00:00
Tim Peters c9d78aa470 Years in the making.
objimpl.h, pymem.h:  Stop mapping PyMem_{Del, DEL} and PyMem_{Free, FREE}
to PyObject_{Free, FREE} in a release build.  They're aliases for the
system free() now.

_subprocess.c/sp_handle_dealloc():  Since the memory was originally
obtained via PyObject_NEW, it must be released via PyObject_FREE (or
_DEL).

pythonrun.c, tokenizer.c, parsermodule.c:  I lost count of the number of
PyObject vs PyMem mismatches in these -- it's like the specific
function called at each site was picked at random, sometimes even with
memory obtained via PyMem getting released via PyObject.  Changed most
to use PyObject uniformly, since the blobs allocated are predictably
small in most cases, and obmalloc is generally faster than system
mallocs then.

If extension modules in real life prove as sloppy as Python's front
end, we'll have to revert the objimpl.h + pymem.h part of this patch.
Note that no problems will show up in a debug build (all calls still go
thru obmalloc then). Problems will show up only in a release build, most
likely segfaults.
2006-03-26 23:27:58 +00:00
Neal Norwitz 2aa9a5dfdd Use macro versions instead of function versions when we already know the type.
This will hopefully get rid of some Coverity warnings, be a hint to
developers, and be marginally faster.

Some asserts were added when the type is currently known, but depends
on values from another function.
2006-03-20 01:53:23 +00:00
Hye-Shik Chang 4af5c8cee4 SF #1444030: Fix several potential defects found by Coverity.
(reviewed by Neal Norwitz)
2006-03-07 15:39:21 +00:00
Thomas Wouters 7eaf2aaf48 Fix crashing bug in tokenizer, when tokenizing files with non-ASCII bytes
but without a specified encoding: decoding_fgets() (and decoding_feof()) can
return NULL and fiddle with the 'tok' struct, making tok->buf NULL. This is
okay in the other cases of calls to decoding_*(), it seems, but not in this
one.

This should get a test added, somewhere, but the testsuite doesn't seem to
test encoding anywhere (although plenty of tests use it.)

It seems to me that decoding errors in other places in the code (like at the
start of a token, instead of in the middle of one) make the code end up
adding small integers to NULL pointers, but happen to check for error states
before using the calculated new pointers. I haven't been able to trigger any
other crashes, in any case.

I would nominate this file for a comlete rewrite for Py3k. The whole
decoding trick is too bolted-on for my tastes.
2006-03-02 20:41:27 +00:00
Martin v. Löwis 03e5bc02c9 Fix memory leak on attributes. 2006-03-02 00:31:27 +00:00
Martin v. Löwis 49c5da1d88 Patch #1440601: Add col_offset attribute to AST nodes. 2006-03-01 22:49:05 +00:00
Martin v. Löwis 66485ae571 Remove unused field. 2006-03-01 04:04:20 +00:00
Neal Norwitz 53d960c010 Don't pollute namespace as bad as before. All the types are static now. 2006-02-28 22:47:29 +00:00
Thomas Wouters 8ae1295c5b Make 'as' an actual keyword when with's future statement is used. Not
actually necessary for functionality, but good for transition.
2006-02-28 22:42:15 +00:00
Martin v. Löwis 6cba25666c Change non-ASCII warning into a SyntaxError. 2006-02-28 22:41:29 +00:00
Thomas Wouters 34aa7ba114 from __future__ import with_statement addon for 'with', mostly written by
Neal.
2006-02-28 19:02:24 +00:00
Tim Peters 710ab3b5f8 Whitespace normalization. 2006-02-28 18:30:36 +00:00
Thomas Wouters f7f438ba3b SF patch #1438387, PEP 328: relative and absolute imports.
- IMPORT_NAME takes an extra argument from the stack: the relativeness of
   the import. Only passed to __import__ when it's not -1.

 - __import__() takes an optional 5th argument for the same thing; it
   __defaults to -1 (old semantics: try relative, then absolute)

 - 'from . import name' imports name (be it module or regular attribute)
   from the current module's *package*. Likewise, 'from .module import name'
   will import name from a sibling to the current module.

 - Importing from outside a package is not allowed; 'from . import sys' in a
   toplevel module will not work, nor will 'from .. import sys' in a
   (single-level) package.

 - 'from __future__ import absolute_import' will turn on the new semantics
   for import and from-import: imports will be absolute, except for
   from-import with dots.

Includes tests for regular imports and importhooks, parser changes and a
NEWS item, but no compiler-package changes or documentation changes.
2006-02-28 16:09:29 +00:00
Martin v. Löwis b003f041bb Generate return statement. 2006-02-28 00:37:04 +00:00
Martin v. Löwis 40d8459dbf Add generation of the version. 2006-02-28 00:30:54 +00:00
Martin v. Löwis eae93b763c Add support for version field on Modules 2006-02-28 00:12:47 +00:00
Guido van Rossum c2e20744b2 PEP 343 -- the with-statement.
This was started by Mike Bland and completed by Guido
(with help from Neal).

This still needs a __future__ statement added;
Thomas is working on Michael's patch for that aspect.

There's a small amount of code cleanup and refactoring
in ast.c, compile.c and ceval.c (I fixed the lltrace
behavior when EXT_POP is used -- however I had to make
lltrace a static global).
2006-02-27 22:32:47 +00:00
Martin v. Löwis 577b5b960d Create _ast module.
Cleanup Python-ast.c generation.
2006-02-27 15:23:19 +00:00
Thomas Wouters dca3b9c797 PEP 308 implementation, including minor refdocs and some testcases. It
breaks the parser module, because it adds the if/else construct as well as
two new grammar rules for backward compatibility. If no one else fixes
parsermodule, I guess I'll go ahead and fix it later this week.

The TeX code was checked with texcheck.py, but not rendered. There is
actually a slight incompatibility:

>>> (x for x in lambda:0)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: iteration over non-sequence

changes into

>>> (x for x in lambda: 0)
  File "<stdin>", line 1
    (x for x in lambda: 0)
                     ^
SyntaxError: invalid syntax

Since there's no way the former version can be useful, it's probably a
bugfix ;)
2006-02-27 00:24:13 +00:00
Martin v. Löwis d3a5f53a27 Avoid reinitializing the types twice. 2006-02-27 00:09:50 +00:00
Martin v. Löwis 8d0701daf1 Stop generating empty arrays. 2006-02-26 23:40:20 +00:00
Martin v. Löwis ce1d5d2527 Fix iterating over cmpop_ty lists. 2006-02-26 20:51:25 +00:00
Martin v. Löwis bd260da900 Generate code to recursively copy an AST into
a tree of Python objects. Expose this through compile().
2006-02-26 19:42:26 +00:00
Martin v. Löwis f5adf1eb72 Use Py_ssize_t to count the length. 2006-02-16 14:35:38 +00:00
Martin v. Löwis a87c445177 Remove C99ism. 2006-02-15 19:56:18 +00:00
Martin v. Löwis 18e165558b Merge ssize_t branch. 2006-02-15 17:27:45 +00:00
Jeremy Hylton c960f26044 Improved handling of syntax errors.
Expand set of errors caught in set_context().  Some new errors, some
old error messages changed for consistency.

Fixed error checking in generator expression code.  The first set of
tests were impossible condition given the grammar.  In general, the
ast code uses REQ() for those sanity checks.

Fix some error handling for augmented assignments.  As comments in the
code explain, set_context() ought to work here, but I got unexpected
crashes when I tried it.  Should come back to this.

Add note to Grammar that yield expression is a special case.

Add doctest cases for SyntaxErrors raised by ast.c.
2006-01-27 15:18:39 +00:00
Neal Norwitz 46aae198ad Revert previous checkin, the check is for <, not ==. i is unsed in non-debug builds, but is used in debug builds 2006-01-08 02:06:01 +00:00
Neal Norwitz 056a2d6582 Fix icc warnings. This couldn't have been correct since i is checked
for 2 different values without changing.  I think this was the intent.
The unused warning only occurs when not building in debug mode.
2006-01-08 01:10:34 +00:00
Tim Peters 536cf99536 Whitespace normalization. 2005-12-25 23:18:31 +00:00
Neal Norwitz 30b5c5d011 Fix SF bug #1072182, problems with signed characters.
Most of these can be backported.
2005-12-19 06:05:18 +00:00
Neal Norwitz db83eb3170 Fix Bug #1378022, UTF-8 files with a leading BOM crashed the interpreter.
Needs backport.
2005-12-18 05:29:30 +00:00
Neal Norwitz adb69fcdff Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
simplifies a lot of error handling code, and fixes many memory leaks.
2005-12-17 20:54:49 +00:00
Armin Rigo 6b1793ff88 When regenerating files like Python-ast.h, take care that the generated
comment based on 'sys.args[0]' does not depend on the path.  For Python
builds from a remote directory ("/path/to/configure; make") the previous
logic used to include the "/path/to" portion in Python-ast.h.  Then svn
would consider this file to be locally modified.
2005-12-14 18:05:14 +00:00
Neal Norwitz 897ff817d5 SF #1373150, diffs in working copy after a build
Strip off leading dots and slash so the generated files are the same regardless
of whether you configure in the checkout directory or build.

If anyone configures in a different directory, we might want a cleaner
approach using os.path.*().  Hopefully this is good enough.
2005-12-11 21:18:22 +00:00
Neal Norwitz dee2fd5448 Fix some more memory leaks.
Call error_ret() in decode_str().  It was called in some other places,
but seemed inconsistent.  It is safe to call PyTokenizer_Free() after
calling error_ret().
2005-11-16 05:12:59 +00:00
Neal Norwitz 56c6561d30 Prevent unlikely memory leak, tok should always be freed when parsetok() returns 2005-11-15 04:54:23 +00:00
Neal Norwitz 19b0f40cb1 Thou shalt not lie, there are really 5 types now 2005-11-15 04:52:16 +00:00
Neal Norwitz 7b5a604d24 Whoops, checkin consistent versions of *all* files to stop polluting
a bunch of names
2005-11-13 19:14:20 +00:00
Neal Norwitz 6576bd844f Prevent name pollution by making lots of internal functions static. 2005-11-13 18:41:28 +00:00
Martin v. Löwis ab0f947a21 Remove .cvsignore files, as they live in svn:ignore
properties now.
2005-10-30 22:01:41 +00:00
Neal Norwitz a34584be3b Use PyErr_NoMemory() instead of rolling our own.
Get rid of "int i" unused warnings from Python-ast.c which we are generating.
2005-10-23 18:59:17 +00:00
Neal Norwitz c0d5faa9b4 Free coding spec (cs) if there was an error to prevent mem leak. Maybe backport candidate 2005-10-21 06:05:33 +00:00
Jeremy Hylton 3e0055f8c6 Merge ast-branch to head
This change implements a new bytecode compiler, based on a
transformation of the parse tree to an abstract syntax defined in
Parser/Python.asdl.

The compiler implementation is not complete, but it is in stable
enough shape to run the entire test suite excepting two disabled
tests.
2005-10-20 19:59:25 +00:00
Neal Norwitz 40d3781416 - Fix segfault with invalid coding.
- SF Bug #772896, unknown encoding results in MemoryError, which is not helpful

I will only backport the segfault fix.  I'll let Anthony decide if he wants
the other changes backported.  I will do the backport if asked.
2005-10-02 01:48:49 +00:00
Walter Dörwald c1f5fff2b7 Apply SF patch #1101726: Fix buffer overrun in tokenizer.c when a source file
with a PEP 263 encoding declaration results in long decoded line.
2005-07-12 21:53:43 +00:00
Michael W. Hudson e3afc598bc In a threads-disabled build, typing Ctrl-C into a raw_input() crashed,
because (essentially) I didn't realise that PY_BEGIN/END_ALLOW_THREADS
actually expanded to nothing under a no-threads build, so if you somehow
NULLed out the threadstate (e.g. by calling PyThread_SaveThread) it would
stay NULLed when you return to Python.  Argh!

Backport candidate.
2005-04-07 10:11:19 +00:00
Martin v. Löwis 4bf108d74f Patch #802188: better parser error message for non-EOL following line cont. 2005-03-03 11:45:45 +00:00
Anthony Baxter 9ceaa72ebe Patch #975056 - fixes for restartable signals on *BSD. In addition,
a few remaining calls to signal() were converted to PyOS_setsig().
2004-10-13 14:48:50 +00:00
Hye-Shik Chang 7df44b384a SF #941229: Decode source code with sys.stdin.encoding in interactive
modes like non-interactive modes.  This allows for non-latin-1 users
to write unicode strings directly and sets Japanese users free from
weird manual escaping <wink> in shift_jis environments.
(Reviewed by Martin v. Loewis)
2004-08-04 17:36:41 +00:00
Anthony Baxter c2a5a63654 PEP-0318, @decorator-style. In Guido's words:
"@ seems the syntax that everybody can hate equally"
Implementation by Mark Russell, from SF #979728.
2004-08-02 06:10:11 +00:00
Michael W. Hudson 2384990603 PyThreadState_Swap(NULL) didn't do what I thought it did. Fixes
[ 987287 ] Python 2.4a1, interpreter hanging on Keyboard Interrupt
2004-07-08 15:28:26 +00:00
Neal Norwitz 4ded4b52c4 Pass the flags along, rather than ignoring them. Backport candidate 2004-07-08 01:54:07 +00:00
Tim Peters b7e898a0e2 "#if WITH_THREAD" is incorrect; must be #ifdef instead; WITH_THREAD
isn't always set to an integer value when it's defined.
2004-07-07 20:42:07 +00:00
Michael W. Hudson 30ea2f223f This closes patch:
[ 960406 ] unblock signals in threads

although the changes do not correspond exactly to any patch attached to
that report.

Non-main threads no longer have all signals masked.

A different interface to readline is used.

The handling of signals inside calls to PyOS_Readline is now rather
different.

These changes are all a bit scary!  Review and cross-platform testing
much appreciated.
2004-07-07 17:44:12 +00:00
Andrew M. Kuchling 93b4b88e96 [Patch #974633] Check PyObject_MALLOC return for error 2004-06-29 14:03:04 +00:00
Guido van Rossum c69661725a Fix for SF 780407.
Change %08l to %p to print a pointer.
Will backport to 2.3.
2004-03-20 22:34:14 +00:00
Skip Montanaro db6080507d Remove support for --without-universal-newlines (see PEP 11). 2004-02-07 13:53:46 +00:00
Guido van Rossum bd311d8e4e Remove a "temporary" piece of code that was probably unneeded since
mid 1990.  Remove an untrue XXX comment.
2003-12-15 06:06:24 +00:00
Jack Jansen 6402357d40 Talk about old code: removed a reference to THINK_C. 2003-11-20 13:33:48 +00:00
Jack Jansen eddc1449ba Getting rid of all the code inside #ifdef macintosh too. 2003-11-20 01:44:59 +00:00
Jack Jansen fb2765666f Getting rid of support for the ancient Apple MPW compiler. 2003-11-19 15:24:47 +00:00
Tim Peters 8ab2ec432a SF bug 751956: graminit.[ch] don't build on windows
A change from Duncan Booth, to deal with changes in the way pgen gets
built.  Note that graminit.[ch] aren't normally built on Windows (they're
obtained from CVS).
2003-06-17 00:05:53 +00:00
Martin v. Löwis a94568a753 Patch #734231: Update RiscOS support. In particular, correct
riscospath.extsep, and use os.extsep throughout.
2003-05-10 07:36:56 +00:00
Martin v. Löwis c16f3bd8a3 Patch #708495: Port more stuff to OpenVMS. 2003-05-03 09:14:54 +00:00
Guido van Rossum a649e9cb7a Remove file that was moved to ../Include 2003-04-29 14:14:58 +00:00
Guido van Rossum d3ab37f1df Changes from Jonathan Riehl to allow his pgen extension (PEP 269) to
work.  This includes some more code that used to be part of pgen in
the main parser; I'm okay with that.  I'll see if the Windows build
needs work next.
2003-04-17 14:55:42 +00:00
Barry Warsaw edaa071eb4 compile_atom(): Neal's last checkin removing the setting of i broke
the build, so I'm restoring it.  I'm not sure what Neal's intent was,
since the line following the one he removed was "REQN(i, 1)" so i is
obviously used. ;)
2003-02-28 15:27:40 +00:00
Neal Norwitz 5f16a3178c Remove setting i since it isn't used. Found in unrelated bug 690012. 2003-02-28 03:16:07 +00:00
Marc-André Lemburg 1fb1400d08 Add URL for PEP to the source code encoding warning.
Remove the usage of PyErr_WarnExplicit() since this could cause
sensitive information from the source files to appear in e.g.
log files.
2003-02-17 18:31:57 +00:00
Guido van Rossum 4b499dd3fb - Finally fixed the bug in compile() and exec where a string ending
with an indented code block but no newline would raise SyntaxError.
  This would have been a four-line change in parsetok.c...  Except
  codeop.py depends on this behavior, so a compilation flag had to be
  invented that causes the tokenizer to revert to the old behavior;
  this required extra changes to 2 .h files, 2 .c files, and 2 .py
  files.  (Fixes SF bug #501622.)
2003-02-13 22:07:59 +00:00
Just van Rossum f032f86e9e patch 680474 that fixes bug 679880: compile/eval/exec refused utf-8 bom
mark. Added unit test.
2003-02-09 20:38:48 +00:00
Mark Hammond a2e303c32d Fix [ 665014 ] files with long lines and an encoding crash.
Ensure that the 'size' arg is correctly passed to the encoding reader to
prevent buffer overflows.
2003-01-14 23:15:22 +00:00
Martin v. Löwis 95292d6caa Constify filenames and scripts. Fixes #651362. 2002-12-11 14:04:59 +00:00