Mercurial > cpython-lru_cache-weakref
annotate Python/ast.c @ 46664:031dfe455585
Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
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r62425 | andrew.kuchling | 2008-04-21 03:45:57 +0200 (Mon, 21 Apr 2008) | 1 line
Comment typo
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r62426 | mark.dickinson | 2008-04-21 03:55:50 +0200 (Mon, 21 Apr 2008) | 2 lines
Silence 'r may be used uninitialized' compiler warning.
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r62427 | andrew.kuchling | 2008-04-21 04:08:00 +0200 (Mon, 21 Apr 2008) | 1 line
Markup fix
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r62428 | andrew.kuchling | 2008-04-21 04:08:13 +0200 (Mon, 21 Apr 2008) | 1 line
Wording changes
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r62429 | andrew.kuchling | 2008-04-21 04:14:24 +0200 (Mon, 21 Apr 2008) | 1 line
Add various items
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r62434 | thomas.heller | 2008-04-21 15:46:55 +0200 (Mon, 21 Apr 2008) | 1 line
Fix typo.
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r62435 | david.goodger | 2008-04-21 16:40:22 +0200 (Mon, 21 Apr 2008) | 1 line
corrections ("reStructuredText" is one word)
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r62436 | david.goodger | 2008-04-21 16:43:33 +0200 (Mon, 21 Apr 2008) | 1 line
capitalization
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r62441 | gregory.p.smith | 2008-04-21 19:46:40 +0200 (Mon, 21 Apr 2008) | 2 lines
explicitly flush after the ... since there wasn't a newline
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r62444 | jeroen.ruigrok | 2008-04-21 22:15:39 +0200 (Mon, 21 Apr 2008) | 2 lines
Windows x64 also falls under VER_PLATFORM_WIN32_NT.
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r62446 | gregory.p.smith | 2008-04-21 23:31:08 +0200 (Mon, 21 Apr 2008) | 3 lines
If sys.stdin is not a tty, fall back to default_getpass after printing
a warning instead of failing with a termios.error.
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r62447 | mark.dickinson | 2008-04-22 00:32:24 +0200 (Tue, 22 Apr 2008) | 8 lines
test_math and test_cmath are failing on the FreeBSD 6.2 trunk buildbot,
apparently because tanh(-0.) loses the sign of zero on that platform.
If true, this is a bug in FreeBSD.
Added a configure test to verify this. I still need to figure out
how best to deal with this failure.
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r62448 | amaury.forgeotdarc | 2008-04-22 00:35:30 +0200 (Tue, 22 Apr 2008) | 7 lines
Issue 2665: On Windows, sys.stderr does not contain a valid file when running without a console.
It seems to work, but will fail at the first flush.
This causes IDLE to crash when too many warnings are printed.
Will backport.
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r62450 | benjamin.peterson | 2008-04-22 00:57:00 +0200 (Tue, 22 Apr 2008) | 2 lines
Fix Sphinx warnings
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r62451 | mark.dickinson | 2008-04-22 02:54:27 +0200 (Tue, 22 Apr 2008) | 3 lines
Make configure test for tanh(-0.) == -0. committed in r62447 actually
work. (The test wasn't properly linked with libm. Sigh.)
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r62452 | benjamin.peterson | 2008-04-22 04:16:03 +0200 (Tue, 22 Apr 2008) | 2 lines
Various io doc updates
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r62453 | neal.norwitz | 2008-04-22 07:07:47 +0200 (Tue, 22 Apr 2008) | 1 line
Add Thomas Lee
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r62454 | gregory.p.smith | 2008-04-22 10:08:41 +0200 (Tue, 22 Apr 2008) | 8 lines
Major improvements:
* Default to using /dev/tty for the password prompt and input before
falling back to sys.stdin and sys.stderr.
* Use sys.stderr instead of sys.stdout.
* print the 'password may be echoed' warning to stream used to display
the prompt rather than always sys.stderr.
* warn() with GetPassWarning when input may be echoed.
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r62455 | gregory.p.smith | 2008-04-22 10:11:33 +0200 (Tue, 22 Apr 2008) | 2 lines
update the getpass entry
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r62463 | amaury.forgeotdarc | 2008-04-22 23:14:41 +0200 (Tue, 22 Apr 2008) | 5 lines
Issue #2670: urllib2.build_opener() failed when two handlers
derive the same default base class.
Will backport.
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r62465 | skip.montanaro | 2008-04-23 00:45:09 +0200 (Wed, 23 Apr 2008) | 3 lines
Factor in documentation changes from issue 1753732.
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r62466 | gregory.p.smith | 2008-04-23 03:06:42 +0200 (Wed, 23 Apr 2008) | 2 lines
syntax fixup
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r62469 | benjamin.peterson | 2008-04-23 22:38:06 +0200 (Wed, 23 Apr 2008) | 2 lines
#2673 Fix example typo in optparse docs
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r62474 | martin.v.loewis | 2008-04-24 11:50:50 +0200 (Thu, 24 Apr 2008) | 2 lines
Add Guilherme Polo.
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r62476 | martin.v.loewis | 2008-04-24 15:16:36 +0200 (Thu, 24 Apr 2008) | 3 lines
Remove Py_Refcnt, Py_Type, Py_Size, as they were added only
for backwards compatibility, yet 2.5 did not have them at all.
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r62477 | martin.v.loewis | 2008-04-24 15:17:24 +0200 (Thu, 24 Apr 2008) | 2 lines
Fix typo.
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r62478 | martin.v.loewis | 2008-04-24 15:18:03 +0200 (Thu, 24 Apr 2008) | 2 lines
Add Jesus Cea.
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r62480 | amaury.forgeotdarc | 2008-04-24 20:07:05 +0200 (Thu, 24 Apr 2008) | 4 lines
Issue2681: the literal 0o8 was wrongly accepted, and evaluated as float(0.0).
This happened only when 8 is the first digit.
Credits go to Lukas Meuser.
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r62485 | amaury.forgeotdarc | 2008-04-24 22:10:26 +0200 (Thu, 24 Apr 2008) | 5 lines
Disable gc when running test_trace, or we may record the __del__ of collected objects.
See http://mail.python.org/pipermail/python-checkins/2008-April/068633.html
the extra events perfectly match several calls to socket._fileobject.__del__()
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r62492 | neal.norwitz | 2008-04-25 05:40:17 +0200 (Fri, 25 Apr 2008) | 1 line
Fix typo (now -> no)
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r62497 | armin.rigo | 2008-04-25 11:35:18 +0200 (Fri, 25 Apr 2008) | 2 lines
A new crasher.
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r62498 | thomas.heller | 2008-04-25 17:44:16 +0200 (Fri, 25 Apr 2008) | 1 line
Add from_buffer and from_buffer_copy class methods to ctypes types.
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r62500 | mark.dickinson | 2008-04-25 18:59:09 +0200 (Fri, 25 Apr 2008) | 3 lines
Issue 2635: fix bug in the fix_sentence_endings option to textwrap.fill.
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r62507 | benjamin.peterson | 2008-04-25 23:43:56 +0200 (Fri, 25 Apr 2008) | 2 lines
Allow test_import to work when it is invoked directly
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r62513 | georg.brandl | 2008-04-26 20:31:07 +0200 (Sat, 26 Apr 2008) | 2 lines
#2691: document PyLong (s)size_t APIs, patch by Alexander Belopolsky.
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r62514 | georg.brandl | 2008-04-26 20:32:17 +0200 (Sat, 26 Apr 2008) | 2 lines
Add missing return type to dealloc.
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r62516 | alexandre.vassalotti | 2008-04-27 02:52:24 +0200 (Sun, 27 Apr 2008) | 2 lines
Fixed URL of PEP 205 in weakref's module docstring.
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r62521 | georg.brandl | 2008-04-27 11:39:59 +0200 (Sun, 27 Apr 2008) | 2 lines
#2677: add note that not all functions may accept keyword args.
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r62531 | georg.brandl | 2008-04-27 19:38:55 +0200 (Sun, 27 Apr 2008) | 2 lines
Use correct XHTML tags.
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r62535 | benjamin.peterson | 2008-04-27 20:14:39 +0200 (Sun, 27 Apr 2008) | 2 lines
#2700 Document PyNumber_ToBase
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r62545 | skip.montanaro | 2008-04-27 22:53:57 +0200 (Sun, 27 Apr 2008) | 1 line
minor wording changes, rewrap a few lines
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r62546 | kurt.kaiser | 2008-04-27 23:07:41 +0200 (Sun, 27 Apr 2008) | 7 lines
Home / Control-A toggles between left margin and end of leading white
space. Patch 1196903 Jeff Shute.
M idlelib/PyShell.py
M idlelib/EditorWindow.py
M idlelib/NEWS.txt
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r62548 | kurt.kaiser | 2008-04-27 23:38:05 +0200 (Sun, 27 Apr 2008) | 2 lines
Improved AutoCompleteWindow logic. Patch 2062 Tal Einat.
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r62549 | kurt.kaiser | 2008-04-27 23:52:19 +0200 (Sun, 27 Apr 2008) | 4 lines
Autocompletion of filenames now support alternate separators, e.g. the
'/' char on Windows. Patch 2061 Tal Einat.
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r62550 | skip.montanaro | 2008-04-28 00:49:56 +0200 (Mon, 28 Apr 2008) | 6 lines
A few small changes:
* The only exception we should catch when trying to import cStringIO is an
ImportError.
* Delete the function signatures embedded in the mk*temp docstrings.
* The tempdir global variable was initialized twice.
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r62551 | skip.montanaro | 2008-04-28 00:52:02 +0200 (Mon, 28 Apr 2008) | 4 lines
Wrap some long paragraphs and include the default values for optional
function parameters.
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r62553 | skip.montanaro | 2008-04-28 04:57:23 +0200 (Mon, 28 Apr 2008) | 7 lines
Minor cleanups:
* Avoid creating unused local variables where we can. Where we can't prefix
the unused variables with '_'.
* Avoid shadowing builtins where it won't change the external interface of a
function.
* Use None as default path arg to readmodule and readmodule_ex.
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r62554 | skip.montanaro | 2008-04-28 04:59:45 +0200 (Mon, 28 Apr 2008) | 6 lines
Correct documentation to match implementation: "Class" instead of
"class_descriptor", "Function" instead of "function_descriptor". Note
default path value for readmodule*. Wrap some long paragraphs. Don't
mention 'inpackage' which isn't part of the public API.
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r62555 | brett.cannon | 2008-04-28 05:23:50 +0200 (Mon, 28 Apr 2008) | 5 lines
Fix a bug introduced by the warnings rewrite where tracebacks were being
improperly indented.
Closes issue #2699.
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r62556 | skip.montanaro | 2008-04-28 05:25:37 +0200 (Mon, 28 Apr 2008) | 2 lines
Wrap some long lines.
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r62557 | skip.montanaro | 2008-04-28 05:27:53 +0200 (Mon, 28 Apr 2008) | 6 lines
Get rid of _test(), _main(), _debug() and _check(). Tests are no longer
needed (better set available in Lib/test/test_robotparser.py). Clean up a
few PEP 8 nits (compound statements on a single line, whitespace around
operators).
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r62558 | brett.cannon | 2008-04-28 06:50:06 +0200 (Mon, 28 Apr 2008) | 3 lines
Rename the test_traceback_print() function to traceback_print() to prevent
test_capi from automatically calling the function.
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r62559 | georg.brandl | 2008-04-28 07:16:30 +0200 (Mon, 28 Apr 2008) | 2 lines
Fix markup.
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r62569 | amaury.forgeotdarc | 2008-04-28 23:07:06 +0200 (Mon, 28 Apr 2008) | 5 lines
test_sundry performs minimal tests (a simple import...) on modules that are not tested otherwise.
Some of them now have tests and can be removed.
Only 70 to go...
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r62574 | andrew.kuchling | 2008-04-29 04:03:54 +0200 (Tue, 29 Apr 2008) | 1 line
Strip down SSL docs; I'm not managing to get test programs working, so I'll just give a minimal description
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r62577 | martin.v.loewis | 2008-04-29 08:10:53 +0200 (Tue, 29 Apr 2008) | 2 lines
Add Rodrigo and Heiko.
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r62593 | nick.coghlan | 2008-04-30 16:23:36 +0200 (Wed, 30 Apr 2008) | 1 line
Update command line usage documentation to reflect 2.6 changes (also includes some minor cleanups). Addresses TODO list issue 2258
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r62595 | andrew.kuchling | 2008-04-30 18:19:55 +0200 (Wed, 30 Apr 2008) | 1 line
Typo fix
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r62604 | benjamin.peterson | 2008-04-30 23:03:58 +0200 (Wed, 30 Apr 2008) | 2 lines
make test_support's captured_output a bit more robust when exceptions happen
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r62605 | georg.brandl | 2008-04-30 23:08:42 +0200 (Wed, 30 Apr 2008) | 2 lines
#1748: use functools.wraps instead of rolling own metadata update.
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r62606 | benjamin.peterson | 2008-04-30 23:25:55 +0200 (Wed, 30 Apr 2008) | 2 lines
Remove some from __future__ import with_statements
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r62608 | benjamin.peterson | 2008-05-01 00:03:36 +0200 (Thu, 01 May 2008) | 2 lines
Fix typo in whatsnew
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r62616 | georg.brandl | 2008-05-01 20:24:32 +0200 (Thu, 01 May 2008) | 2 lines
Fix synopsis.
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r62626 | brett.cannon | 2008-05-02 04:25:09 +0200 (Fri, 02 May 2008) | 6 lines
Fix a backwards-compatibility mistake where a new optional argument for
warnings.showwarning() was being used. This broke pre-existing replacements for
the function since they didn't support the extra argument.
Closes issue 2705.
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r62627 | gregory.p.smith | 2008-05-02 09:26:52 +0200 (Fri, 02 May 2008) | 20 lines
This should fix issue2632. A long description of the two competing
problems is in the bug report (one old, one recently introduced trying
to fix the old one). In short:
buffer data during socket._fileobject.read() and readlines() within a
cStringIO object instead of a [] of str()s returned from the recv()
call.
This prevents excessive memory use due to the size parameter being
passed to recv() being grossly larger than the actual size of the data
returned *and* prevents excessive cpu usage due to looping in python
calling recv() with a very tiny size value if min() is used as the
previous memory-use bug "fix" did.
It also documents what the socket._fileobject._rbufsize member is
actually used for.
This is a candidate for back porting to 2.5.
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r62636 | mark.hammond | 2008-05-02 14:48:15 +0200 (Fri, 02 May 2008) | 2 lines
#2581: Vista UAC/elevation support for bdist_wininst
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r62638 | facundo.batista | 2008-05-02 19:39:00 +0200 (Fri, 02 May 2008) | 3 lines
Fixed some test structures. Thanks Mark Dickinson.
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r62644 | ronald.oussoren | 2008-05-02 21:45:11 +0200 (Fri, 02 May 2008) | 7 lines
Fix for issue #2573: Can't change the framework name on OS X builds
This introduces a new configure option: --with-framework-name=NAME
(defaulting to 'Python'). This allows you to install several copies
of the Python framework with different names (such as a normal build
and a debug build).
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r62645 | ronald.oussoren | 2008-05-02 21:58:56 +0200 (Fri, 02 May 2008) | 2 lines
Finish fix for issue2573, previous patch was incomplete.
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r62647 | martin.v.loewis | 2008-05-02 23:30:20 +0200 (Fri, 02 May 2008) | 13 lines
Merged revisions 62263-62646 via svnmerge from
svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3
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r62470 | david.wolever | 2008-04-24 02:11:07 +0200 (Do, 24 Apr 2008) | 3 lines
Fixed up and applied the patch for #2431 -- speeding up 2to3 with a lookup table.
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r62646 | martin.v.loewis | 2008-05-02 23:29:27 +0200 (Fr, 02 Mai 2008) | 2 lines
Fix whitespace.
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r62648 | ronald.oussoren | 2008-05-02 23:42:35 +0200 (Fri, 02 May 2008) | 4 lines
Fix for #1905: PythonLauncher not working correctly on OSX 10.5/Leopard
This fixes both Python Launchar and the terminalcommand module.
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r62651 | ronald.oussoren | 2008-05-02 23:54:56 +0200 (Fri, 02 May 2008) | 2 lines
Fix for issue #2520 (cannot import macerrors)
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r62652 | benjamin.peterson | 2008-05-03 00:12:58 +0200 (Sat, 03 May 2008) | 2 lines
capitalization nit for reStructuredText
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r62653 | brett.cannon | 2008-05-03 03:02:41 +0200 (Sat, 03 May 2008) | 2 lines
Fix some indentation errors.
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r62656 | brett.cannon | 2008-05-03 05:19:39 +0200 (Sat, 03 May 2008) | 6 lines
Fix the C implementation of 'warnings' to infer the filename of the module that
raised an exception properly when __file__ is not set, __name__ == '__main__',
and sys.argv[0] is a false value.
Closes issue2743.
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r62661 | amaury.forgeotdarc | 2008-05-03 14:21:13 +0200 (Sat, 03 May 2008) | 8 lines
In test_io, StatefulIncrementalDecoderTest was not part of the test suite.
And of course, the test failed:
a bytearray was used without reason in io.TextIOWrapper.tell().
The difference is that iterating over bytes (i.e. str in python2.6) returns 1-char bytes,
whereas bytearrays yield integers.
This code should still work with python3.0
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r62663 | benjamin.peterson | 2008-05-03 17:56:42 +0200 (Sat, 03 May 2008) | 2 lines
The compiling struct is now passed around to all AST helpers (see issue 2720)
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r62680 | benjamin.peterson | 2008-05-03 23:35:18 +0200 (Sat, 03 May 2008) | 2 lines
Moved testing of builtin types out of test_builtin and into type specific modules
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r62686 | mark.dickinson | 2008-05-04 04:25:46 +0200 (Sun, 04 May 2008) | 4 lines
Make sure that Context traps and flags dictionaries have values 0 and 1
(as documented) rather than True and False.
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r62687 | benjamin.peterson | 2008-05-04 05:05:49 +0200 (Sun, 04 May 2008) | 2 lines
Fix typo in whatsnew
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r62696 | georg.brandl | 2008-05-04 11:15:04 +0200 (Sun, 04 May 2008) | 2 lines
#2752: wrong meaning of '' for socket host.
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r62699 | christian.heimes | 2008-05-04 13:50:53 +0200 (Sun, 04 May 2008) | 1 line
Added note that Python requires at least Win2k SP4
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r62700 | gerhard.haering | 2008-05-04 14:59:57 +0200 (Sun, 04 May 2008) | 3 lines
SQLite requires 64-bit integers in order to build. So the whole HAVE_LONG_LONG
#ifdefing was useless.
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r62701 | gerhard.haering | 2008-05-04 15:15:12 +0200 (Sun, 04 May 2008) | 3 lines
Applied sqliterow-richcmp.diff patch from Thomas Heller in Issue2152. The
sqlite3.Row type is now correctly hashable.
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r62702 | gerhard.haering | 2008-05-04 15:42:44 +0200 (Sun, 04 May 2008) | 5 lines
Implemented feature request 2157: Converter names are cut off at '('
characters. This avoids the common case of something like 'NUMBER(10)' not
being parsed as 'NUMBER', like expected. Also corrected the docs about
converter names being case-sensitive. They aren't any longer.
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r62703 | georg.brandl | 2008-05-04 17:45:05 +0200 (Sun, 04 May 2008) | 2 lines
#2757: Remove spare newline.
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r62711 | benjamin.peterson | 2008-05-04 21:10:02 +0200 (Sun, 04 May 2008) | 2 lines
Fix typo in bugs.rst
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| author | Christian Heimes <christian@cheimes.de> |
|---|---|
| date | Sun, 04 May 2008 22:42:01 +0000 |
| parents | b10292eafb07 |
| children | 23ab586c427a |
| rev | line source |
|---|---|
| 35742 | 1 /* |
| 2 * This file includes functions to transform a concrete syntax tree (CST) to | |
| 3 * an abstract syntax tree (AST). The main function is PyAST_FromNode(). | |
| 4 * | |
| 5 */ | |
| 6 #include "Python.h" | |
| 7 #include "Python-ast.h" | |
| 8 #include "grammar.h" | |
| 9 #include "node.h" | |
|
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
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changeset
|
10 #include "pyarena.h" |
| 35742 | 11 #include "ast.h" |
| 12 #include "token.h" | |
| 13 #include "parsetok.h" | |
| 14 #include "graminit.h" | |
| 15 | |
| 16 #include <assert.h> | |
| 17 | |
| 18 /* Data structure used internally */ | |
| 19 struct compiling { | |
|
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Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
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|
20 char *c_encoding; /* source encoding */ |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
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21 PyArena *c_arena; /* arena for allocating memeory */ |
|
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parents:
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22 const char *c_filename; /* filename */ |
| 35742 | 23 }; |
| 24 | |
| 25 static asdl_seq *seq_for_testlist(struct compiling *, const node *); | |
| 26 static expr_ty ast_for_expr(struct compiling *, const node *); | |
| 27 static stmt_ty ast_for_stmt(struct compiling *, const node *); | |
| 28 static asdl_seq *ast_for_suite(struct compiling *, const node *); | |
|
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29 static asdl_seq *ast_for_exprlist(struct compiling *, const node *, |
|
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30 expr_context_ty); |
|
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Write a separate ast_for_testlist_gexp() function instead of overloading
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parents:
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31 static expr_ty ast_for_testlist(struct compiling *, const node *); |
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32 static stmt_ty ast_for_classdef(struct compiling *, const node *, asdl_seq *); |
| 35742 | 33 |
| 34 /* Note different signature for ast_for_call */ | |
| 35 static expr_ty ast_for_call(struct compiling *, const node *, expr_ty); | |
| 36 | |
|
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Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
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parents:
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37 static PyObject *parsenumber(struct compiling *, const char *); |
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38 static PyObject *parsestr(struct compiling *, const node *n, int *bytesmode); |
| 40894 | 39 static PyObject *parsestrplus(struct compiling *, const node *n, |
| 40 int *bytesmode); | |
| 35742 | 41 |
| 42 #ifndef LINENO | |
|
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Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
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43 #define LINENO(n) ((n)->n_lineno) |
| 35742 | 44 #endif |
| 45 | |
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parents:
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46 #define COMP_GENEXP 0 |
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47 #define COMP_LISTCOMP 1 |
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48 #define COMP_SETCOMP 2 |
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49 |
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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50 static identifier |
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Implement PEP 3131. Add isidentifier to str.
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51 new_identifier(const char* n, PyArena *arena) |
|
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|
52 { |
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53 PyObject* id = PyUnicode_DecodeUTF8(n, strlen(n), NULL); |
|
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|
54 Py_UNICODE *u = PyUnicode_AS_UNICODE(id); |
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|
55 /* Check whether there are non-ASCII characters in the |
|
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|
56 identifier; if so, normalize to NFKC. */ |
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57 for (; *u; u++) { |
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58 if (*u >= 128) { |
|
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More PyImport_ImportModule -> PyImport_ImportModuleNoBlock
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59 PyObject *m = PyImport_ImportModuleNoBlock("unicodedata"); |
|
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60 PyObject *id2; |
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61 if (!m) |
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62 return NULL; |
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63 id2 = PyObject_CallMethod(m, "normalize", "sO", "NFKC", id); |
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|
64 Py_DECREF(m); |
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65 if (!id2) |
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parents:
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66 return NULL; |
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|
67 Py_DECREF(id); |
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|
68 id = id2; |
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69 break; |
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70 } |
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parents:
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71 } |
|
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changeset
|
72 PyUnicode_InternInPlace(&id); |
|
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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diff
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|
73 PyArena_AddPyObject(arena, id); |
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|
74 return id; |
| 35742 | 75 } |
| 76 | |
|
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ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
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changeset
|
77 #define NEW_IDENTIFIER(n) new_identifier(STR(n), c->c_arena) |
| 35742 | 78 |
| 79 /* This routine provides an invalid object for the syntax error. | |
| 80 The outermost routine must unpack this error and create the | |
| 81 proper object. We do this so that we don't have to pass | |
| 82 the filename to everything function. | |
| 83 | |
| 84 XXX Maybe we should just pass the filename... | |
| 85 */ | |
| 86 | |
| 87 static int | |
| 88 ast_error(const node *n, const char *errstr) | |
| 89 { | |
| 90 PyObject *u = Py_BuildValue("zi", errstr, LINENO(n)); | |
| 91 if (!u) | |
|
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|
92 return 0; |
| 35742 | 93 PyErr_SetObject(PyExc_SyntaxError, u); |
| 94 Py_DECREF(u); | |
| 95 return 0; | |
| 96 } | |
| 97 | |
| 98 static void | |
| 99 ast_error_finish(const char *filename) | |
| 100 { | |
| 101 PyObject *type, *value, *tback, *errstr, *loc, *tmp; | |
|
36231
d3f4c467e439
Fix icc warnings: conversion from "long" to "int" may lose significant bits
Neal Norwitz <nnorwitz@gmail.com>
parents:
36224
diff
changeset
|
102 long lineno; |
| 35742 | 103 |
| 104 assert(PyErr_Occurred()); | |
| 105 if (!PyErr_ExceptionMatches(PyExc_SyntaxError)) | |
|
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|
106 return; |
| 35742 | 107 |
| 108 PyErr_Fetch(&type, &value, &tback); | |
| 109 errstr = PyTuple_GetItem(value, 0); | |
| 110 if (!errstr) | |
|
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111 return; |
| 35742 | 112 Py_INCREF(errstr); |
|
44099
f324631462a2
Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents:
44025
diff
changeset
|
113 lineno = PyLong_AsLong(PyTuple_GetItem(value, 1)); |
|
36000
cc3261597136
SF #1370197, memory leak - ast_error_finish (in error conditions).
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
114 if (lineno == -1) { |
|
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115 Py_DECREF(errstr); |
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116 return; |
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SF #1370197, memory leak - ast_error_finish (in error conditions).
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diff
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117 } |
| 35742 | 118 Py_DECREF(value); |
| 119 | |
| 120 loc = PyErr_ProgramText(filename, lineno); | |
| 121 if (!loc) { | |
|
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122 Py_INCREF(Py_None); |
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123 loc = Py_None; |
| 35742 | 124 } |
|
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Fix icc warnings: conversion from "long" to "int" may lose significant bits
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parents:
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125 tmp = Py_BuildValue("(zlOO)", filename, lineno, Py_None, loc); |
| 35742 | 126 Py_DECREF(loc); |
|
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SF #1370197, memory leak - ast_error_finish (in error conditions).
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127 if (!tmp) { |
|
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128 Py_DECREF(errstr); |
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129 return; |
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130 } |
|
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Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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diff
changeset
|
131 value = PyTuple_Pack(2, errstr, tmp); |
| 35742 | 132 Py_DECREF(errstr); |
| 133 Py_DECREF(tmp); | |
| 134 if (!value) | |
|
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135 return; |
| 35742 | 136 PyErr_Restore(type, value, tback); |
| 137 } | |
| 138 | |
| 139 /* num_stmts() returns number of contained statements. | |
| 140 | |
| 141 Use this routine to determine how big a sequence is needed for | |
| 142 the statements in a parse tree. Its raison d'etre is this bit of | |
| 143 grammar: | |
| 144 | |
| 145 stmt: simple_stmt | compound_stmt | |
| 146 simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE | |
| 147 | |
| 148 A simple_stmt can contain multiple small_stmt elements joined | |
| 149 by semicolons. If the arg is a simple_stmt, the number of | |
| 150 small_stmt elements is returned. | |
| 151 */ | |
| 152 | |
| 153 static int | |
| 154 num_stmts(const node *n) | |
| 155 { | |
| 156 int i, l; | |
| 157 node *ch; | |
| 158 | |
| 159 switch (TYPE(n)) { | |
| 160 case single_input: | |
| 161 if (TYPE(CHILD(n, 0)) == NEWLINE) | |
| 162 return 0; | |
| 163 else | |
| 164 return num_stmts(CHILD(n, 0)); | |
| 165 case file_input: | |
| 166 l = 0; | |
| 167 for (i = 0; i < NCH(n); i++) { | |
| 168 ch = CHILD(n, i); | |
| 169 if (TYPE(ch) == stmt) | |
| 170 l += num_stmts(ch); | |
| 171 } | |
| 172 return l; | |
| 173 case stmt: | |
| 174 return num_stmts(CHILD(n, 0)); | |
| 175 case compound_stmt: | |
| 176 return 1; | |
| 177 case simple_stmt: | |
| 178 return NCH(n) / 2; /* Divide by 2 to remove count of semi-colons */ | |
| 179 case suite: | |
| 180 if (NCH(n) == 1) | |
| 181 return num_stmts(CHILD(n, 0)); | |
| 182 else { | |
| 183 l = 0; | |
| 184 for (i = 2; i < (NCH(n) - 1); i++) | |
| 185 l += num_stmts(CHILD(n, i)); | |
| 186 return l; | |
| 187 } | |
| 188 default: { | |
| 189 char buf[128]; | |
| 190 | |
| 191 sprintf(buf, "Non-statement found: %d %d\n", | |
| 192 TYPE(n), NCH(n)); | |
| 193 Py_FatalError(buf); | |
| 194 } | |
| 195 } | |
| 196 assert(0); | |
| 197 return 0; | |
| 198 } | |
| 199 | |
| 200 /* Transform the CST rooted at node * to the appropriate AST | |
| 201 */ | |
| 202 | |
| 203 mod_ty | |
|
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|
204 PyAST_FromNode(const node *n, PyCompilerFlags *flags, const char *filename, |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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diff
changeset
|
205 PyArena *arena) |
| 35742 | 206 { |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
207 int i, j, k, num; |
| 35742 | 208 asdl_seq *stmts = NULL; |
| 209 stmt_ty s; | |
| 210 node *ch; | |
| 211 struct compiling c; | |
| 212 | |
| 213 if (flags && flags->cf_flags & PyCF_SOURCE_IS_UTF8) { | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
214 c.c_encoding = "utf-8"; |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
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diff
changeset
|
215 if (TYPE(n) == encoding_decl) { |
|
42054
063530fcc32e
Minimal changes to make the "freeze" tool work again.
Guido van Rossum <guido@python.org>
parents:
42013
diff
changeset
|
216 #if 0 |
|
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diff
changeset
|
217 ast_error(n, "encoding declaration in Unicode string"); |
|
06145fbc7ab9
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diff
changeset
|
218 goto error; |
|
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diff
changeset
|
219 #endif |
|
063530fcc32e
Minimal changes to make the "freeze" tool work again.
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diff
changeset
|
220 n = CHILD(n, 0); |
|
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Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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diff
changeset
|
221 } |
| 35742 | 222 } else if (TYPE(n) == encoding_decl) { |
| 223 c.c_encoding = STR(n); | |
| 224 n = CHILD(n, 0); | |
| 225 } else { | |
| 42403 | 226 /* PEP 3120 */ |
| 227 c.c_encoding = "utf-8"; | |
| 35742 | 228 } |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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diff
changeset
|
229 c.c_arena = arena; |
|
44025
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Merged revisions 59107-59186 via svnmerge from
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parents:
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diff
changeset
|
230 c.c_filename = filename; |
| 35742 | 231 |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
232 k = 0; |
| 35742 | 233 switch (TYPE(n)) { |
| 234 case file_input: | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
36001
diff
changeset
|
235 stmts = asdl_seq_new(num_stmts(n), arena); |
| 35742 | 236 if (!stmts) |
|
41554
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41509
diff
changeset
|
237 return NULL; |
| 35742 | 238 for (i = 0; i < NCH(n) - 1; i++) { |
| 239 ch = CHILD(n, i); | |
| 240 if (TYPE(ch) == NEWLINE) | |
| 241 continue; | |
| 242 REQ(ch, stmt); | |
| 243 num = num_stmts(ch); | |
| 244 if (num == 1) { | |
| 245 s = ast_for_stmt(&c, ch); | |
| 246 if (!s) | |
| 247 goto error; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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parents:
36712
diff
changeset
|
248 asdl_seq_SET(stmts, k++, s); |
| 35742 | 249 } |
| 250 else { | |
| 251 ch = CHILD(ch, 0); | |
| 252 REQ(ch, simple_stmt); | |
| 253 for (j = 0; j < num; j++) { | |
| 254 s = ast_for_stmt(&c, CHILD(ch, j * 2)); | |
| 255 if (!s) | |
| 256 goto error; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
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parents:
36712
diff
changeset
|
257 asdl_seq_SET(stmts, k++, s); |
| 35742 | 258 } |
| 259 } | |
| 260 } | |
|
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Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
36001
diff
changeset
|
261 return Module(stmts, arena); |
| 35742 | 262 case eval_input: { |
| 263 expr_ty testlist_ast; | |
| 264 | |
|
41464
060c79f6d919
Hide list comp variables and support set comprehensions
Nick Coghlan <ncoghlan@gmail.com>
parents:
41235
diff
changeset
|
265 /* XXX Why not comp_for here? */ |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
266 testlist_ast = ast_for_testlist(&c, CHILD(n, 0)); |
| 35742 | 267 if (!testlist_ast) |
| 268 goto error; | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
36001
diff
changeset
|
269 return Expression(testlist_ast, arena); |
| 35742 | 270 } |
| 271 case single_input: | |
| 272 if (TYPE(CHILD(n, 0)) == NEWLINE) { | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
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diff
changeset
|
273 stmts = asdl_seq_new(1, arena); |
| 35742 | 274 if (!stmts) |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
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parents:
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|
275 goto error; |
|
37879
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Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
276 asdl_seq_SET(stmts, 0, Pass(n->n_lineno, n->n_col_offset, |
|
f731859e9b3b
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parents:
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diff
changeset
|
277 arena)); |
|
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parents:
41699
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changeset
|
278 if (!asdl_seq_GET(stmts, 0)) |
|
00c02c4488ce
Merged revisions 55325-55327 via svnmerge from
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parents:
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|
279 goto error; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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parents:
36001
diff
changeset
|
280 return Interactive(stmts, arena); |
| 35742 | 281 } |
| 282 else { | |
| 283 n = CHILD(n, 0); | |
| 284 num = num_stmts(n); | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
285 stmts = asdl_seq_new(num, arena); |
| 35742 | 286 if (!stmts) |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
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diff
changeset
|
287 goto error; |
| 35742 | 288 if (num == 1) { |
|
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parents:
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changeset
|
289 s = ast_for_stmt(&c, n); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
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changeset
|
290 if (!s) |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
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parents:
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diff
changeset
|
291 goto error; |
| 35742 | 292 asdl_seq_SET(stmts, 0, s); |
| 293 } | |
| 294 else { | |
| 295 /* Only a simple_stmt can contain multiple statements. */ | |
| 296 REQ(n, simple_stmt); | |
| 297 for (i = 0; i < NCH(n); i += 2) { | |
| 298 if (TYPE(CHILD(n, i)) == NEWLINE) | |
| 299 break; | |
| 300 s = ast_for_stmt(&c, CHILD(n, i)); | |
| 301 if (!s) | |
| 302 goto error; | |
| 303 asdl_seq_SET(stmts, i / 2, s); | |
| 304 } | |
| 305 } | |
| 306 | |
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307 return Interactive(stmts, arena); |
| 35742 | 308 } |
| 309 default: | |
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310 PyErr_Format(PyExc_SystemError, |
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311 "invalid node %d for PyAST_FromNode", TYPE(n)); |
| 35742 | 312 goto error; |
| 313 } | |
| 314 error: | |
| 315 ast_error_finish(filename); | |
| 316 return NULL; | |
| 317 } | |
| 318 | |
| 319 /* Return the AST repr. of the operator represented as syntax (|, ^, etc.) | |
| 320 */ | |
| 321 | |
| 322 static operator_ty | |
| 323 get_operator(const node *n) | |
| 324 { | |
| 325 switch (TYPE(n)) { | |
| 326 case VBAR: | |
| 327 return BitOr; | |
| 328 case CIRCUMFLEX: | |
| 329 return BitXor; | |
| 330 case AMPER: | |
| 331 return BitAnd; | |
| 332 case LEFTSHIFT: | |
| 333 return LShift; | |
| 334 case RIGHTSHIFT: | |
| 335 return RShift; | |
| 336 case PLUS: | |
| 337 return Add; | |
| 338 case MINUS: | |
| 339 return Sub; | |
| 340 case STAR: | |
| 341 return Mult; | |
| 342 case SLASH: | |
| 343 return Div; | |
| 344 case DOUBLESLASH: | |
| 345 return FloorDiv; | |
| 346 case PERCENT: | |
| 347 return Mod; | |
| 348 default: | |
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349 return (operator_ty)0; |
| 35742 | 350 } |
| 351 } | |
| 352 | |
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353 static const char* FORBIDDEN[] = { |
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354 "None", |
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355 "True", |
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356 "False", |
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357 NULL, |
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358 }; |
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359 |
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360 static int |
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361 forbidden_name(expr_ty e, const node *n) |
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362 { |
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363 const char **p; |
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364 assert(PyUnicode_Check(e->v.Name.id)); |
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365 for (p = FORBIDDEN; *p; p++) { |
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366 if (PyUnicode_CompareWithASCIIString(e->v.Name.id, *p) == 0) { |
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367 ast_error(n, "assignment to keyword"); |
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368 return 1; |
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369 } |
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370 } |
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371 return 0; |
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372 } |
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373 |
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374 /* Set the context ctx for expr_ty e, recursively traversing e. |
| 35742 | 375 |
| 376 Only sets context for expr kinds that "can appear in assignment context" | |
| 377 (according to ../Parser/Python.asdl). For other expr kinds, it sets | |
| 378 an appropriate syntax error and returns false. | |
| 379 */ | |
| 380 | |
| 381 static int | |
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382 set_context(struct compiling *c, expr_ty e, expr_context_ty ctx, const node *n) |
| 35742 | 383 { |
| 384 asdl_seq *s = NULL; | |
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385 /* If a particular expression type can't be used for assign / delete, |
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386 set expr_name to its name and an error message will be generated. |
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387 */ |
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388 const char* expr_name = NULL; |
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389 |
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390 /* The ast defines augmented store and load contexts, but the |
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391 implementation here doesn't actually use them. The code may be |
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392 a little more complex than necessary as a result. It also means |
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393 that expressions in an augmented assignment have a Store context. |
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394 Consider restructuring so that augmented assignment uses |
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395 set_context(), too. |
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396 */ |
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397 assert(ctx != AugStore && ctx != AugLoad); |
| 35742 | 398 |
| 399 switch (e->kind) { | |
| 400 case Attribute_kind: | |
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401 e->v.Attribute.ctx = ctx; |
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402 break; |
| 35742 | 403 case Subscript_kind: |
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404 e->v.Subscript.ctx = ctx; |
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405 break; |
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406 case Starred_kind: |
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407 e->v.Starred.ctx = ctx; |
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408 if (!set_context(c, e->v.Starred.value, ctx, n)) |
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409 return 0; |
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410 break; |
| 35742 | 411 case Name_kind: |
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412 if (ctx == Store) { |
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413 if (forbidden_name(e, n)) |
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414 return 0; /* forbidden_name() calls ast_error() */ |
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415 } |
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416 e->v.Name.ctx = ctx; |
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417 break; |
| 35742 | 418 case List_kind: |
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419 e->v.List.ctx = ctx; |
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420 s = e->v.List.elts; |
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421 break; |
| 35742 | 422 case Tuple_kind: |
| 423 if (asdl_seq_LEN(e->v.Tuple.elts) == 0) | |
| 424 return ast_error(n, "can't assign to ()"); | |
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425 e->v.Tuple.ctx = ctx; |
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426 s = e->v.Tuple.elts; |
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427 break; |
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428 case Lambda_kind: |
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429 expr_name = "lambda"; |
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430 break; |
| 35742 | 431 case Call_kind: |
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432 expr_name = "function call"; |
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433 break; |
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434 case BoolOp_kind: |
| 35742 | 435 case BinOp_kind: |
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436 case UnaryOp_kind: |
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437 expr_name = "operator"; |
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438 break; |
| 35742 | 439 case GeneratorExp_kind: |
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440 expr_name = "generator expression"; |
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441 break; |
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442 case Yield_kind: |
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443 expr_name = "yield expression"; |
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444 break; |
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445 case ListComp_kind: |
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446 expr_name = "list comprehension"; |
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447 break; |
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448 case SetComp_kind: |
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449 expr_name = "set comprehension"; |
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450 break; |
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451 case DictComp_kind: |
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452 expr_name = "dict comprehension"; |
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453 break; |
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454 case Dict_kind: |
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455 case Set_kind: |
| 35742 | 456 case Num_kind: |
| 457 case Str_kind: | |
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458 expr_name = "literal"; |
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459 break; |
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460 case Ellipsis_kind: |
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461 expr_name = "Ellipsis"; |
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462 break; |
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463 case Compare_kind: |
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464 expr_name = "comparison"; |
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465 break; |
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466 case IfExp_kind: |
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467 expr_name = "conditional expression"; |
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468 break; |
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469 default: |
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470 PyErr_Format(PyExc_SystemError, |
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471 "unexpected expression in assignment %d (line %d)", |
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472 e->kind, e->lineno); |
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473 return 0; |
| 35742 | 474 } |
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475 /* Check for error string set by switch */ |
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476 if (expr_name) { |
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477 char buf[300]; |
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478 PyOS_snprintf(buf, sizeof(buf), |
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479 "can't %s %s", |
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480 ctx == Store ? "assign to" : "delete", |
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481 expr_name); |
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482 return ast_error(n, buf); |
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483 } |
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484 |
| 35742 | 485 /* If the LHS is a list or tuple, we need to set the assignment |
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486 context for all the contained elements. |
| 35742 | 487 */ |
| 488 if (s) { | |
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489 int i; |
| 35742 | 490 |
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491 for (i = 0; i < asdl_seq_LEN(s); i++) { |
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492 if (!set_context(c, (expr_ty)asdl_seq_GET(s, i), ctx, n)) |
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493 return 0; |
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494 } |
| 35742 | 495 } |
| 496 return 1; | |
| 497 } | |
| 498 | |
| 499 static operator_ty | |
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500 ast_for_augassign(struct compiling *c, const node *n) |
| 35742 | 501 { |
| 502 REQ(n, augassign); | |
| 503 n = CHILD(n, 0); | |
| 504 switch (STR(n)[0]) { | |
| 505 case '+': | |
| 506 return Add; | |
| 507 case '-': | |
| 508 return Sub; | |
| 509 case '/': | |
| 510 if (STR(n)[1] == '/') | |
| 511 return FloorDiv; | |
| 512 else | |
| 513 return Div; | |
| 514 case '%': | |
| 515 return Mod; | |
| 516 case '<': | |
| 517 return LShift; | |
| 518 case '>': | |
| 519 return RShift; | |
| 520 case '&': | |
| 521 return BitAnd; | |
| 522 case '^': | |
| 523 return BitXor; | |
| 524 case '|': | |
| 525 return BitOr; | |
| 526 case '*': | |
| 527 if (STR(n)[1] == '*') | |
| 528 return Pow; | |
| 529 else | |
| 530 return Mult; | |
| 531 default: | |
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532 PyErr_Format(PyExc_SystemError, "invalid augassign: %s", STR(n)); |
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533 return (operator_ty)0; |
| 35742 | 534 } |
| 535 } | |
| 536 | |
| 537 static cmpop_ty | |
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538 ast_for_comp_op(struct compiling *c, const node *n) |
| 35742 | 539 { |
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540 /* comp_op: '<'|'>'|'=='|'>='|'<='|'!='|'in'|'not' 'in'|'is' |
| 35742 | 541 |'is' 'not' |
| 542 */ | |
| 543 REQ(n, comp_op); | |
| 544 if (NCH(n) == 1) { | |
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545 n = CHILD(n, 0); |
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546 switch (TYPE(n)) { |
| 35742 | 547 case LESS: |
| 548 return Lt; | |
| 549 case GREATER: | |
| 550 return Gt; | |
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551 case EQEQUAL: /* == */ |
| 35742 | 552 return Eq; |
| 553 case LESSEQUAL: | |
| 554 return LtE; | |
| 555 case GREATEREQUAL: | |
| 556 return GtE; | |
| 557 case NOTEQUAL: | |
| 558 return NotEq; | |
| 559 case NAME: | |
| 560 if (strcmp(STR(n), "in") == 0) | |
| 561 return In; | |
| 562 if (strcmp(STR(n), "is") == 0) | |
| 563 return Is; | |
| 564 default: | |
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565 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s", |
| 35742 | 566 STR(n)); |
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567 return (cmpop_ty)0; |
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568 } |
| 35742 | 569 } |
| 570 else if (NCH(n) == 2) { | |
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571 /* handle "not in" and "is not" */ |
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572 switch (TYPE(CHILD(n, 0))) { |
| 35742 | 573 case NAME: |
| 574 if (strcmp(STR(CHILD(n, 1)), "in") == 0) | |
| 575 return NotIn; | |
| 576 if (strcmp(STR(CHILD(n, 0)), "is") == 0) | |
| 577 return IsNot; | |
| 578 default: | |
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579 PyErr_Format(PyExc_SystemError, "invalid comp_op: %s %s", |
| 35742 | 580 STR(CHILD(n, 0)), STR(CHILD(n, 1))); |
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581 return (cmpop_ty)0; |
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582 } |
| 35742 | 583 } |
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584 PyErr_Format(PyExc_SystemError, "invalid comp_op: has %d children", |
| 35742 | 585 NCH(n)); |
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586 return (cmpop_ty)0; |
| 35742 | 587 } |
| 588 | |
| 589 static asdl_seq * | |
| 590 seq_for_testlist(struct compiling *c, const node *n) | |
| 591 { | |
| 592 /* testlist: test (',' test)* [','] */ | |
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593 asdl_seq *seq; |
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594 expr_ty expression; |
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595 int i; |
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596 assert(TYPE(n) == testlist || TYPE(n) == testlist_comp); |
| 35742 | 597 |
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598 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 599 if (!seq) |
| 600 return NULL; | |
| 601 | |
| 602 for (i = 0; i < NCH(n); i += 2) { | |
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603 assert(TYPE(CHILD(n, i)) == test || TYPE(CHILD(n, i)) == test_nocond); |
| 35742 | 604 |
| 605 expression = ast_for_expr(c, CHILD(n, i)); | |
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606 if (!expression) |
| 35742 | 607 return NULL; |
| 608 | |
| 609 assert(i / 2 < seq->size); | |
| 610 asdl_seq_SET(seq, i / 2, expression); | |
| 611 } | |
| 612 return seq; | |
| 613 } | |
| 614 | |
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615 static arg_ty |
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616 compiler_arg(struct compiling *c, const node *n) |
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617 { |
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618 identifier name; |
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619 expr_ty annotation = NULL; |
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620 node *ch; |
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621 |
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622 assert(TYPE(n) == tfpdef || TYPE(n) == vfpdef); |
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623 ch = CHILD(n, 0); |
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624 name = NEW_IDENTIFIER(ch); |
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625 if (!name) |
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626 return NULL; |
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627 |
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628 if (NCH(n) == 3 && TYPE(CHILD(n, 1)) == COLON) { |
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629 annotation = ast_for_expr(c, CHILD(n, 2)); |
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630 if (!annotation) |
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631 return NULL; |
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632 } |
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633 |
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634 return arg(name, annotation, c->c_arena); |
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635 #if 0 |
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636 result = Tuple(args, Store, LINENO(n), n->n_col_offset, c->c_arena); |
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637 if (!set_context(c, result, Store, n)) |
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638 return NULL; |
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639 return result; |
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640 #endif |
| 35742 | 641 } |
| 642 | |
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643 /* returns -1 if failed to handle keyword only arguments |
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644 returns new position to keep processing if successful |
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645 (',' tfpdef ['=' test])* |
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646 ^^^ |
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647 start pointing here |
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648 */ |
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649 static int |
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650 handle_keywordonly_args(struct compiling *c, const node *n, int start, |
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651 asdl_seq *kwonlyargs, asdl_seq *kwdefaults) |
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652 { |
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653 node *ch; |
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654 expr_ty expression, annotation; |
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655 arg_ty arg; |
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656 int i = start; |
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657 int j = 0; /* index for kwdefaults and kwonlyargs */ |
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658 |
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659 if (kwonlyargs == NULL) { |
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660 ast_error(CHILD(n, start), "named arguments must follow bare *"); |
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661 return -1; |
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662 } |
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663 assert(kwdefaults != NULL); |
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664 while (i < NCH(n)) { |
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665 ch = CHILD(n, i); |
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666 switch (TYPE(ch)) { |
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667 case vfpdef: |
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668 case tfpdef: |
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669 if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) { |
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670 expression = ast_for_expr(c, CHILD(n, i + 2)); |
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671 asdl_seq_SET(kwdefaults, j, expression); |
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672 i += 2; /* '=' and test */ |
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673 } |
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674 else { /* setting NULL if no default value exists */ |
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675 asdl_seq_SET(kwdefaults, j, NULL); |
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676 } |
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677 if (NCH(ch) == 3) { |
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678 /* ch is NAME ':' test */ |
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679 annotation = ast_for_expr(c, CHILD(ch, 2)); |
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680 if (!annotation) { |
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681 ast_error(ch, "expected expression"); |
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682 goto error; |
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683 } |
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684 } |
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685 else { |
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686 annotation = NULL; |
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687 } |
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688 ch = CHILD(ch, 0); |
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689 arg = arg(NEW_IDENTIFIER(ch), annotation, c->c_arena); |
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690 if (!arg) { |
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691 ast_error(ch, "expecting name"); |
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692 goto error; |
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693 } |
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694 asdl_seq_SET(kwonlyargs, j++, arg); |
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695 i += 2; /* the name and the comma */ |
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696 break; |
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697 case DOUBLESTAR: |
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698 return i; |
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699 default: |
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700 ast_error(ch, "unexpected node"); |
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701 goto error; |
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702 } |
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703 } |
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704 return i; |
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705 error: |
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706 return -1; |
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707 } |
| 35742 | 708 |
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709 /* Create AST for argument list. */ |
| 35742 | 710 |
| 711 static arguments_ty | |
| 712 ast_for_arguments(struct compiling *c, const node *n) | |
| 713 { | |
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714 /* This function handles both typedargslist (function definition) |
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715 and varargslist (lambda definition). |
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716 |
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717 parameters: '(' [typedargslist] ')' |
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718 typedargslist: ((tfpdef ['=' test] ',')* |
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719 ('*' [tfpdef] (',' tfpdef ['=' test])* [',' '**' tfpdef] |
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720 | '**' tfpdef) |
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721 | tfpdef ['=' test] (',' tfpdef ['=' test])* [',']) |
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722 tfpdef: NAME [':' test] |
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723 varargslist: ((vfpdef ['=' test] ',')* |
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724 ('*' [vfpdef] (',' vfpdef ['=' test])* [',' '**' vfpdef] |
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725 | '**' vfpdef) |
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726 | vfpdef ['=' test] (',' vfpdef ['=' test])* [',']) |
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727 vfpdef: NAME |
| 35742 | 728 */ |
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729 int i, j, k, nposargs = 0, nkwonlyargs = 0; |
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730 int nposdefaults = 0, found_default = 0; |
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731 asdl_seq *posargs, *posdefaults, *kwonlyargs, *kwdefaults; |
| 35742 | 732 identifier vararg = NULL, kwarg = NULL; |
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733 arg_ty arg; |
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734 expr_ty varargannotation = NULL, kwargannotation = NULL; |
| 35742 | 735 node *ch; |
| 736 | |
| 737 if (TYPE(n) == parameters) { | |
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738 if (NCH(n) == 2) /* () as argument list */ |
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739 return arguments(NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
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740 NULL, c->c_arena); |
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741 n = CHILD(n, 1); |
| 35742 | 742 } |
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743 assert(TYPE(n) == typedargslist || TYPE(n) == varargslist); |
| 35742 | 744 |
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745 /* first count the number of positional args & defaults */ |
| 35742 | 746 for (i = 0; i < NCH(n); i++) { |
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747 ch = CHILD(n, i); |
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748 if (TYPE(ch) == STAR) { |
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749 /* skip star and possible argument */ |
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750 i++; |
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751 i += (TYPE(CHILD(n, i)) == tfpdef |
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752 || TYPE(CHILD(n, i)) == vfpdef); |
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753 break; |
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754 } |
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changeset
|
755 if (TYPE(ch) == DOUBLESTAR) break; |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
756 if (TYPE(ch) == vfpdef || TYPE(ch) == tfpdef) nposargs++; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
757 if (TYPE(ch) == EQUAL) nposdefaults++; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
758 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
759 /* count the number of keyword only args & |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
760 defaults for keyword only args */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
761 for ( ; i < NCH(n); ++i) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
762 ch = CHILD(n, i); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
763 if (TYPE(ch) == DOUBLESTAR) break; |
|
41717
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
764 if (TYPE(ch) == tfpdef || TYPE(ch) == vfpdef) nkwonlyargs++; |
| 35742 | 765 } |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
766 posargs = (nposargs ? asdl_seq_new(nposargs, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
767 if (!posargs && nposargs) |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
768 goto error; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
769 kwonlyargs = (nkwonlyargs ? |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
770 asdl_seq_new(nkwonlyargs, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
771 if (!kwonlyargs && nkwonlyargs) |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
772 goto error; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
773 posdefaults = (nposdefaults ? |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
774 asdl_seq_new(nposdefaults, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
775 if (!posdefaults && nposdefaults) |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
776 goto error; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
777 /* The length of kwonlyargs and kwdefaults are same |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
778 since we set NULL as default for keyword only argument w/o default |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
779 - we have sequence data structure, but no dictionary */ |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
780 kwdefaults = (nkwonlyargs ? |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
781 asdl_seq_new(nkwonlyargs, c->c_arena) : NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
782 if (!kwdefaults && nkwonlyargs) |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
783 goto error; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
784 |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
785 if (nposargs + nkwonlyargs > 255) { |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
786 ast_error(n, "more than 255 arguments"); |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
787 return NULL; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
788 } |
| 35742 | 789 |
|
41717
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
790 /* tfpdef: NAME [':' test] |
|
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
791 vfpdef: NAME |
| 35742 | 792 */ |
| 793 i = 0; | |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
794 j = 0; /* index for defaults */ |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
795 k = 0; /* index for args */ |
| 35742 | 796 while (i < NCH(n)) { |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
797 ch = CHILD(n, i); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
798 switch (TYPE(ch)) { |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
799 case tfpdef: |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
800 case vfpdef: |
| 35742 | 801 /* XXX Need to worry about checking if TYPE(CHILD(n, i+1)) is |
| 802 anything other than EQUAL or a comma? */ | |
| 803 /* XXX Should NCH(n) check be made a separate check? */ | |
| 804 if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) { | |
|
39442
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
805 expr_ty expression = ast_for_expr(c, CHILD(n, i + 2)); |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
806 if (!expression) |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
807 goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
808 assert(posdefaults != NULL); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
809 asdl_seq_SET(posdefaults, j++, expression); |
| 35742 | 810 i += 2; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
811 found_default = 1; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
812 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
813 else if (found_default) { |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
814 ast_error(n, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
815 "non-default argument follows default argument"); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
816 goto error; |
| 35742 | 817 } |
|
41717
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
818 arg = compiler_arg(c, ch); |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
819 if (!arg) |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
820 goto error; |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
821 asdl_seq_SET(posargs, k++, arg); |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
822 |
| 35742 | 823 i += 2; /* the name and the comma */ |
| 824 break; | |
| 825 case STAR: | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
826 if (i+1 >= NCH(n)) { |
|
44246
aac33ee1a8fc
Issue #1573, second attempt:
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents:
44237
diff
changeset
|
827 ast_error(CHILD(n, i), |
|
aac33ee1a8fc
Issue #1573, second attempt:
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents:
44237
diff
changeset
|
828 "named arguments must follow bare *"); |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
829 goto error; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
830 } |
|
41717
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
831 ch = CHILD(n, i+1); /* tfpdef or COMMA */ |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
832 if (TYPE(ch) == COMMA) { |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
833 int res = 0; |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
834 i += 2; /* now follows keyword only arguments */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
835 res = handle_keywordonly_args(c, n, i, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
836 kwonlyargs, kwdefaults); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
837 if (res == -1) goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
838 i = res; /* res has new position to process */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
839 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
840 else { |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
841 vararg = NEW_IDENTIFIER(CHILD(ch, 0)); |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
842 if (NCH(ch) > 1) { |
|
41717
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
843 /* there is an annotation on the vararg */ |
|
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
844 varargannotation = ast_for_expr(c, CHILD(ch, 2)); |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
845 } |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
846 i += 3; |
|
41717
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
847 if (i < NCH(n) && (TYPE(CHILD(n, i)) == tfpdef |
|
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
848 || TYPE(CHILD(n, i)) == vfpdef)) { |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
849 int res = 0; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
850 res = handle_keywordonly_args(c, n, i, |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
851 kwonlyargs, kwdefaults); |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
852 if (res == -1) goto error; |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
853 i = res; /* res has new position to process */ |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
854 } |
|
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
855 } |
| 35742 | 856 break; |
| 857 case DOUBLESTAR: | |
|
41717
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
858 ch = CHILD(n, i+1); /* tfpdef */ |
|
9ad84070b22d
Merged revisions 55328-55341 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41716
diff
changeset
|
859 assert(TYPE(ch) == tfpdef || TYPE(ch) == vfpdef); |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
860 kwarg = NEW_IDENTIFIER(CHILD(ch, 0)); |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
861 if (NCH(ch) > 1) { |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
862 /* there is an annotation on the kwarg */ |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
863 kwargannotation = ast_for_expr(c, CHILD(ch, 2)); |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
864 } |
| 35742 | 865 i += 3; |
| 866 break; | |
| 867 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
868 PyErr_Format(PyExc_SystemError, |
| 35742 | 869 "unexpected node in varargslist: %d @ %d", |
| 870 TYPE(ch), i); | |
| 871 goto error; | |
|
40215
1cce0526d9b0
Jiwon Seo's PEP 3102 implementation.
Guido van Rossum <guido@python.org>
parents:
39783
diff
changeset
|
872 } |
| 35742 | 873 } |
|
40529
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
874 return arguments(posargs, vararg, varargannotation, kwonlyargs, kwarg, |
|
54cd47788811
PEP 3107 - Function Annotations thanks to Tony Lownds
Neal Norwitz <nnorwitz@gmail.com>
parents:
40450
diff
changeset
|
875 kwargannotation, posdefaults, kwdefaults, c->c_arena); |
| 35742 | 876 error: |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
877 Py_XDECREF(vararg); |
|
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
878 Py_XDECREF(kwarg); |
| 35742 | 879 return NULL; |
| 880 } | |
| 881 | |
| 882 static expr_ty | |
| 883 ast_for_dotted_name(struct compiling *c, const node *n) | |
| 884 { | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
885 expr_ty e; |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
886 identifier id; |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
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|
887 int lineno, col_offset; |
| 35742 | 888 int i; |
| 889 | |
| 890 REQ(n, dotted_name); | |
|
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891 |
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892 lineno = LINENO(n); |
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893 col_offset = n->n_col_offset; |
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894 |
| 35742 | 895 id = NEW_IDENTIFIER(CHILD(n, 0)); |
| 896 if (!id) | |
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|
897 return NULL; |
|
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898 e = Name(id, Load, lineno, col_offset, c->c_arena); |
| 35742 | 899 if (!e) |
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900 return NULL; |
| 35742 | 901 |
| 902 for (i = 2; i < NCH(n); i+=2) { | |
| 903 id = NEW_IDENTIFIER(CHILD(n, i)); | |
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904 if (!id) |
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905 return NULL; |
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906 e = Attribute(e, id, Load, lineno, col_offset, c->c_arena); |
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907 if (!e) |
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|
908 return NULL; |
| 35742 | 909 } |
| 910 | |
| 911 return e; | |
| 912 } | |
| 913 | |
| 914 static expr_ty | |
| 915 ast_for_decorator(struct compiling *c, const node *n) | |
| 916 { | |
| 917 /* decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE */ | |
| 918 expr_ty d = NULL; | |
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919 expr_ty name_expr; |
| 35742 | 920 |
| 921 REQ(n, decorator); | |
|
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922 REQ(CHILD(n, 0), AT); |
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923 REQ(RCHILD(n, -1), NEWLINE); |
| 35742 | 924 |
| 925 name_expr = ast_for_dotted_name(c, CHILD(n, 1)); | |
| 926 if (!name_expr) | |
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927 return NULL; |
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928 |
| 35742 | 929 if (NCH(n) == 3) { /* No arguments */ |
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930 d = name_expr; |
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931 name_expr = NULL; |
| 35742 | 932 } |
| 933 else if (NCH(n) == 5) { /* Call with no arguments */ | |
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934 d = Call(name_expr, NULL, NULL, NULL, NULL, LINENO(n), |
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935 n->n_col_offset, c->c_arena); |
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936 if (!d) |
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937 return NULL; |
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938 name_expr = NULL; |
| 35742 | 939 } |
| 940 else { | |
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941 d = ast_for_call(c, CHILD(n, 3), name_expr); |
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942 if (!d) |
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943 return NULL; |
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944 name_expr = NULL; |
| 35742 | 945 } |
| 946 | |
| 947 return d; | |
| 948 } | |
| 949 | |
| 950 static asdl_seq* | |
| 951 ast_for_decorators(struct compiling *c, const node *n) | |
| 952 { | |
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953 asdl_seq* decorator_seq; |
|
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954 expr_ty d; |
| 35742 | 955 int i; |
| 956 | |
| 957 REQ(n, decorators); | |
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958 decorator_seq = asdl_seq_new(NCH(n), c->c_arena); |
| 35742 | 959 if (!decorator_seq) |
| 960 return NULL; | |
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961 |
| 35742 | 962 for (i = 0; i < NCH(n); i++) { |
|
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963 d = ast_for_decorator(c, CHILD(n, i)); |
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964 if (!d) |
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965 return NULL; |
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966 asdl_seq_SET(decorator_seq, i, d); |
| 35742 | 967 } |
| 968 return decorator_seq; | |
| 969 } | |
| 970 | |
| 971 static stmt_ty | |
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972 ast_for_funcdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 973 { |
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974 /* funcdef: 'def' NAME parameters ['->' test] ':' suite */ |
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975 identifier name; |
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976 arguments_ty args; |
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977 asdl_seq *body; |
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978 expr_ty returns = NULL; |
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979 int name_i = 1; |
| 35742 | 980 |
| 981 REQ(n, funcdef); | |
| 982 | |
| 983 name = NEW_IDENTIFIER(CHILD(n, name_i)); | |
| 984 if (!name) | |
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985 return NULL; |
| 35742 | 986 args = ast_for_arguments(c, CHILD(n, name_i + 1)); |
| 987 if (!args) | |
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988 return NULL; |
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989 if (TYPE(CHILD(n, name_i+2)) == RARROW) { |
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990 returns = ast_for_expr(c, CHILD(n, name_i + 3)); |
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991 if (!returns) |
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992 return NULL; |
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993 name_i += 2; |
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994 } |
| 35742 | 995 body = ast_for_suite(c, CHILD(n, name_i + 3)); |
| 996 if (!body) | |
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997 return NULL; |
| 35742 | 998 |
|
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999 return FunctionDef(name, args, body, decorator_seq, returns, LINENO(n), |
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1000 n->n_col_offset, c->c_arena); |
| 35742 | 1001 } |
| 1002 | |
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1003 static stmt_ty |
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1004 ast_for_decorated(struct compiling *c, const node *n) |
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1005 { |
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1006 /* decorated: decorators (classdef | funcdef) */ |
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1007 stmt_ty thing = NULL; |
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1008 asdl_seq *decorator_seq = NULL; |
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1009 |
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1010 REQ(n, decorated); |
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1011 |
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1012 decorator_seq = ast_for_decorators(c, CHILD(n, 0)); |
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1013 if (!decorator_seq) |
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1014 return NULL; |
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1015 |
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1016 assert(TYPE(CHILD(n, 1)) == funcdef || |
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1017 TYPE(CHILD(n, 1)) == classdef); |
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1018 |
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1019 if (TYPE(CHILD(n, 1)) == funcdef) { |
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1020 thing = ast_for_funcdef(c, CHILD(n, 1), decorator_seq); |
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1021 } else if (TYPE(CHILD(n, 1)) == classdef) { |
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1022 thing = ast_for_classdef(c, CHILD(n, 1), decorator_seq); |
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1023 } |
|
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1024 /* we count the decorators in when talking about the class' or |
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1025 * function's line number */ |
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1026 if (thing) { |
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1027 thing->lineno = LINENO(n); |
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1028 thing->col_offset = n->n_col_offset; |
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1029 } |
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1030 return thing; |
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1031 } |
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1032 |
| 35742 | 1033 static expr_ty |
| 1034 ast_for_lambdef(struct compiling *c, const node *n) | |
| 1035 { | |
|
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1036 /* lambdef: 'lambda' [varargslist] ':' test |
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1037 lambdef_nocond: 'lambda' [varargslist] ':' test_nocond */ |
| 35742 | 1038 arguments_ty args; |
| 1039 expr_ty expression; | |
| 1040 | |
| 1041 if (NCH(n) == 3) { | |
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1042 args = arguments(NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
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1043 NULL, c->c_arena); |
| 35742 | 1044 if (!args) |
| 1045 return NULL; | |
| 1046 expression = ast_for_expr(c, CHILD(n, 2)); | |
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1047 if (!expression) |
| 35742 | 1048 return NULL; |
| 1049 } | |
| 1050 else { | |
| 1051 args = ast_for_arguments(c, CHILD(n, 1)); | |
| 1052 if (!args) | |
| 1053 return NULL; | |
| 1054 expression = ast_for_expr(c, CHILD(n, 3)); | |
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1055 if (!expression) |
| 35742 | 1056 return NULL; |
| 1057 } | |
| 1058 | |
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|
1059 return Lambda(args, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1060 } |
| 1061 | |
|
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1062 static expr_ty |
|
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1063 ast_for_ifexpr(struct compiling *c, const node *n) |
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1064 { |
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1065 /* test: or_test 'if' or_test 'else' test */ |
|
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1066 expr_ty expression, body, orelse; |
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1067 |
|
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1068 assert(NCH(n) == 5); |
|
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1069 body = ast_for_expr(c, CHILD(n, 0)); |
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1070 if (!body) |
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1071 return NULL; |
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1072 expression = ast_for_expr(c, CHILD(n, 2)); |
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1073 if (!expression) |
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1074 return NULL; |
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1075 orelse = ast_for_expr(c, CHILD(n, 4)); |
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1076 if (!orelse) |
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1077 return NULL; |
|
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1078 return IfExp(expression, body, orelse, LINENO(n), n->n_col_offset, |
|
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1079 c->c_arena); |
|
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1080 } |
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1081 |
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1082 /* |
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1083 Count the number of 'for' loops in a comprehension. |
| 35742 | 1084 |
|
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1085 Helper for ast_for_comprehension(). |
| 35742 | 1086 */ |
| 1087 | |
| 1088 static int | |
|
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1089 count_comp_fors(struct compiling *c, const node *n) |
| 35742 | 1090 { |
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1091 int n_fors = 0; |
| 35742 | 1092 |
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1093 count_comp_for: |
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1094 n_fors++; |
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1095 REQ(n, comp_for); |
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1096 if (NCH(n) == 5) |
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1097 n = CHILD(n, 4); |
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1098 else |
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1099 return n_fors; |
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1100 count_comp_iter: |
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1101 REQ(n, comp_iter); |
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1102 n = CHILD(n, 0); |
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1103 if (TYPE(n) == comp_for) |
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1104 goto count_comp_for; |
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1105 else if (TYPE(n) == comp_if) { |
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1106 if (NCH(n) == 3) { |
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1107 n = CHILD(n, 2); |
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1108 goto count_comp_iter; |
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1109 } |
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1110 else |
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1111 return n_fors; |
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1112 } |
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1113 |
|
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1114 /* Should never be reached */ |
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1115 PyErr_SetString(PyExc_SystemError, |
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1116 "logic error in count_comp_fors"); |
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1117 return -1; |
| 35742 | 1118 } |
| 1119 | |
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1120 /* Count the number of 'if' statements in a comprehension. |
| 35742 | 1121 |
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1122 Helper for ast_for_comprehension(). |
| 35742 | 1123 */ |
| 1124 | |
| 1125 static int | |
|
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1126 count_comp_ifs(struct compiling *c, const node *n) |
| 35742 | 1127 { |
|
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1128 int n_ifs = 0; |
| 35742 | 1129 |
|
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1130 while (1) { |
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1131 REQ(n, comp_iter); |
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1132 if (TYPE(CHILD(n, 0)) == comp_for) |
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1133 return n_ifs; |
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1134 n = CHILD(n, 0); |
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1135 REQ(n, comp_if); |
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1136 n_ifs++; |
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1137 if (NCH(n) == 2) |
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1138 return n_ifs; |
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1139 n = CHILD(n, 2); |
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1140 } |
| 35742 | 1141 } |
| 1142 | |
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1143 static asdl_seq * |
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1144 ast_for_comprehension(struct compiling *c, const node *n) |
| 35742 | 1145 { |
| 1146 int i, n_fors; | |
|
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1147 asdl_seq *comps; |
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1148 |
|
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1149 n_fors = count_comp_fors(c, n); |
| 35742 | 1150 if (n_fors == -1) |
| 1151 return NULL; | |
|
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1152 |
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1153 comps = asdl_seq_new(n_fors, c->c_arena); |
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1154 if (!comps) |
| 35742 | 1155 return NULL; |
|
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1156 |
| 35742 | 1157 for (i = 0; i < n_fors; i++) { |
|
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1158 comprehension_ty comp; |
| 35742 | 1159 asdl_seq *t; |
| 1160 expr_ty expression; | |
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1161 node *for_ch; |
| 35742 | 1162 |
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1163 REQ(n, comp_for); |
| 35742 | 1164 |
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1165 for_ch = CHILD(n, 1); |
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1166 t = ast_for_exprlist(c, for_ch, Store); |
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1167 if (!t) |
| 35742 | 1168 return NULL; |
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1169 expression = ast_for_expr(c, CHILD(n, 3)); |
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1170 if (!expression) |
| 35742 | 1171 return NULL; |
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1172 |
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1173 /* Check the # of children rather than the length of t, since |
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1174 (x for x, in ...) has 1 element in t, but still requires a Tuple. */ |
|
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1175 if (NCH(for_ch) == 1) |
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1176 comp = comprehension((expr_ty)asdl_seq_GET(t, 0), expression, |
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1177 NULL, c->c_arena); |
| 35742 | 1178 else |
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1179 comp = comprehension(Tuple(t, Store, LINENO(n), n->n_col_offset, |
|
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1180 c->c_arena), |
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1181 expression, NULL, c->c_arena); |
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1182 |
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1183 if (!comp) |
| 35742 | 1184 return NULL; |
|
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1185 |
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1186 if (NCH(n) == 5) { |
| 35742 | 1187 int j, n_ifs; |
| 1188 asdl_seq *ifs; | |
| 1189 | |
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1190 n = CHILD(n, 4); |
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1191 n_ifs = count_comp_ifs(c, n); |
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1192 if (n_ifs == -1) |
| 35742 | 1193 return NULL; |
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1194 |
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1195 ifs = asdl_seq_new(n_ifs, c->c_arena); |
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1196 if (!ifs) |
| 35742 | 1197 return NULL; |
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1198 |
| 35742 | 1199 for (j = 0; j < n_ifs; j++) { |
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1200 REQ(n, comp_iter); |
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1201 n = CHILD(n, 0); |
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1202 REQ(n, comp_if); |
| 35742 | 1203 |
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1204 expression = ast_for_expr(c, CHILD(n, 1)); |
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1205 if (!expression) |
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1206 return NULL; |
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1207 asdl_seq_SET(ifs, j, expression); |
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1208 if (NCH(n) == 3) |
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1209 n = CHILD(n, 2); |
| 35742 | 1210 } |
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1211 /* on exit, must guarantee that n is a comp_for */ |
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1212 if (TYPE(n) == comp_iter) |
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1213 n = CHILD(n, 0); |
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1214 comp->ifs = ifs; |
| 35742 | 1215 } |
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1216 asdl_seq_SET(comps, i, comp); |
| 35742 | 1217 } |
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1218 return comps; |
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1219 } |
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1220 |
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1221 static expr_ty |
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1222 ast_for_itercomp(struct compiling *c, const node *n, int type) |
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1223 { |
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1224 /* testlist_comp: test ( comp_for | (',' test)* [','] ) |
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1225 argument: [test '='] test [comp_for] # Really [keyword '='] test */ |
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1226 expr_ty elt; |
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1227 asdl_seq *comps; |
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1228 |
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1229 assert(NCH(n) > 1); |
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1230 |
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1231 elt = ast_for_expr(c, CHILD(n, 0)); |
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1232 if (!elt) |
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1233 return NULL; |
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1234 |
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1235 comps = ast_for_comprehension(c, CHILD(n, 1)); |
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1236 if (!comps) |
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1237 return NULL; |
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1238 |
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1239 if (type == COMP_GENEXP) |
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1240 return GeneratorExp(elt, comps, LINENO(n), n->n_col_offset, c->c_arena); |
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1241 else if (type == COMP_LISTCOMP) |
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1242 return ListComp(elt, comps, LINENO(n), n->n_col_offset, c->c_arena); |
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1243 else if (type == COMP_SETCOMP) |
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1244 return SetComp(elt, comps, LINENO(n), n->n_col_offset, c->c_arena); |
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1245 else |
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1246 /* Should never happen */ |
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1247 return NULL; |
| 35742 | 1248 } |
| 1249 | |
| 1250 static expr_ty | |
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1251 ast_for_dictcomp(struct compiling *c, const node *n) |
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1252 { |
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1253 expr_ty key, value; |
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1254 asdl_seq *comps; |
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1255 |
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1256 assert(NCH(n) > 3); |
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1257 REQ(CHILD(n, 1), COLON); |
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1258 |
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1259 key = ast_for_expr(c, CHILD(n, 0)); |
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1260 if (!key) |
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1261 return NULL; |
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1262 |
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1263 value = ast_for_expr(c, CHILD(n, 2)); |
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1264 if (!value) |
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1265 return NULL; |
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1266 |
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1267 comps = ast_for_comprehension(c, CHILD(n, 3)); |
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1268 if (!comps) |
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1269 return NULL; |
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1270 |
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1271 return DictComp(key, value, comps, LINENO(n), n->n_col_offset, c->c_arena); |
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1272 } |
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1273 |
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1274 static expr_ty |
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1275 ast_for_genexp(struct compiling *c, const node *n) |
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1276 { |
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1277 assert(TYPE(n) == (testlist_comp) || TYPE(n) == (argument)); |
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1278 return ast_for_itercomp(c, n, COMP_GENEXP); |
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1279 } |
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1280 |
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1281 static expr_ty |
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1282 ast_for_listcomp(struct compiling *c, const node *n) |
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1283 { |
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1284 assert(TYPE(n) == (testlist_comp)); |
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1285 return ast_for_itercomp(c, n, COMP_LISTCOMP); |
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1286 } |
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1287 |
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1288 static expr_ty |
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1289 ast_for_setcomp(struct compiling *c, const node *n) |
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1290 { |
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1291 assert(TYPE(n) == (dictorsetmaker)); |
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1292 return ast_for_itercomp(c, n, COMP_SETCOMP); |
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1293 } |
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1294 |
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1295 |
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1296 static expr_ty |
| 35742 | 1297 ast_for_atom(struct compiling *c, const node *n) |
| 1298 { | |
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1299 /* atom: '(' [yield_expr|testlist_comp] ')' | '[' [testlist_comp] ']' |
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1300 | '{' [dictmaker|testlist_comp] '}' | NAME | NUMBER | STRING+ |
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1301 | '...' | 'None' | 'True' | 'False' |
| 35742 | 1302 */ |
| 1303 node *ch = CHILD(n, 0); | |
| 40894 | 1304 int bytesmode = 0; |
| 35742 | 1305 |
| 1306 switch (TYPE(ch)) { | |
| 1307 case NAME: | |
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1308 /* All names start in Load context, but may later be |
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1309 changed. */ |
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1310 return Name(NEW_IDENTIFIER(ch), Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1311 case STRING: { |
| 40894 | 1312 PyObject *str = parsestrplus(c, n, &bytesmode); |
|
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1313 if (!str) { |
|
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1314 if (PyErr_ExceptionMatches(PyExc_UnicodeError)) { |
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1315 PyObject *type, *value, *tback, *errstr; |
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1316 PyErr_Fetch(&type, &value, &tback); |
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1317 errstr = ((PyUnicodeErrorObject *)value)->reason; |
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1318 if (errstr) { |
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1319 char *s = ""; |
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|
1320 char buf[128]; |
|
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1321 s = PyUnicode_AsString(errstr); |
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1322 PyOS_snprintf(buf, sizeof(buf), "(unicode error) %s", s); |
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1323 ast_error(n, buf); |
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1324 } else { |
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1325 ast_error(n, "(unicode error) unknown error"); |
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1326 } |
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|
1327 Py_DECREF(type); |
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|
1328 Py_DECREF(value); |
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1329 Py_XDECREF(tback); |
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1330 } |
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1331 return NULL; |
|
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1332 } |
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1333 PyArena_AddPyObject(c->c_arena, str); |
| 40894 | 1334 if (bytesmode) |
| 1335 return Bytes(str, LINENO(n), n->n_col_offset, c->c_arena); | |
| 1336 else | |
| 1337 return Str(str, LINENO(n), n->n_col_offset, c->c_arena); | |
| 35742 | 1338 } |
| 1339 case NUMBER: { | |
|
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1340 PyObject *pynum = parsenumber(c, STR(ch)); |
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1341 if (!pynum) |
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1342 return NULL; |
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1343 |
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1344 PyArena_AddPyObject(c->c_arena, pynum); |
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1345 return Num(pynum, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1346 } |
|
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|
1347 case ELLIPSIS: /* Ellipsis */ |
|
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1348 return Ellipsis(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1349 case LPAR: /* some parenthesized expressions */ |
|
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1350 ch = CHILD(n, 1); |
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1351 |
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1352 if (TYPE(ch) == RPAR) |
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1353 return Tuple(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
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1354 |
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1355 if (TYPE(ch) == yield_expr) |
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1356 return ast_for_expr(c, ch); |
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1357 |
|
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1358 /* testlist_comp: test ( comp_for | (',' test)* [','] ) */ |
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1359 if ((NCH(ch) > 1) && (TYPE(CHILD(ch, 1)) == comp_for)) |
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1360 return ast_for_genexp(c, ch); |
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1361 |
|
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1362 return ast_for_testlist(c, ch); |
| 35742 | 1363 case LSQB: /* list (or list comprehension) */ |
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1364 ch = CHILD(n, 1); |
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1365 |
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1366 if (TYPE(ch) == RSQB) |
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1367 return List(NULL, Load, LINENO(n), n->n_col_offset, c->c_arena); |
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1368 |
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1369 REQ(ch, testlist_comp); |
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1370 if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) { |
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1371 asdl_seq *elts = seq_for_testlist(c, ch); |
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1372 if (!elts) |
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|
1373 return NULL; |
|
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|
1374 |
|
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|
1375 return List(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1376 } |
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|
1377 else |
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|
1378 return ast_for_listcomp(c, ch); |
| 35742 | 1379 case LBRACE: { |
|
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1380 /* dictorsetmaker: test ':' test (',' test ':' test)* [','] | |
|
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1381 * test (gen_for | (',' test)* [',']) */ |
|
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|
1382 int i, size; |
|
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|
1383 asdl_seq *keys, *values; |
|
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1384 |
|
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|
1385 ch = CHILD(n, 1); |
|
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|
1386 if (TYPE(ch) == RBRACE) { |
|
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|
1387 /* it's an empty dict */ |
|
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1388 return Dict(NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
|
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1389 } else if (NCH(ch) == 1 || TYPE(CHILD(ch, 1)) == COMMA) { |
|
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|
1390 /* it's a simple set */ |
|
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|
1391 asdl_seq *elts; |
|
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1392 size = (NCH(ch) + 1) / 2; /* +1 in case no trailing comma */ |
|
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|
1393 elts = asdl_seq_new(size, c->c_arena); |
|
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1394 if (!elts) |
|
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|
1395 return NULL; |
|
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|
1396 for (i = 0; i < NCH(ch); i += 2) { |
|
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|
1397 expr_ty expression; |
|
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|
1398 expression = ast_for_expr(c, CHILD(ch, i)); |
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1399 if (!expression) |
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|
1400 return NULL; |
|
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|
1401 asdl_seq_SET(elts, i / 2, expression); |
|
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1402 } |
|
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1403 return Set(elts, LINENO(n), n->n_col_offset, c->c_arena); |
|
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1404 } else if (TYPE(CHILD(ch, 1)) == comp_for) { |
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1405 /* it's a set comprehension */ |
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1406 return ast_for_setcomp(c, ch); |
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1407 } else if (NCH(ch) > 3 && TYPE(CHILD(ch, 3)) == comp_for) { |
|
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1408 return ast_for_dictcomp(c, ch); |
|
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|
1409 } else { |
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1410 /* it's a dict */ |
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1411 size = (NCH(ch) + 1) / 4; /* +1 in case no trailing comma */ |
|
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1412 keys = asdl_seq_new(size, c->c_arena); |
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|
1413 if (!keys) |
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|
1414 return NULL; |
|
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|
1415 |
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|
1416 values = asdl_seq_new(size, c->c_arena); |
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|
1417 if (!values) |
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|
1418 return NULL; |
|
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1419 |
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|
1420 for (i = 0; i < NCH(ch); i += 4) { |
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|
1421 expr_ty expression; |
|
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Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1422 |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1423 expression = ast_for_expr(c, CHILD(ch, i)); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1424 if (!expression) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1425 return NULL; |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1426 |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1427 asdl_seq_SET(keys, i / 4, expression); |
|
35873
76ed7fdc9d85
Fix a whole bunch of potential memory leaks (and some real ones too)
Neal Norwitz <nnorwitz@gmail.com>
parents:
35870
diff
changeset
|
1428 |
|
39693
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1429 expression = ast_for_expr(c, CHILD(ch, i + 2)); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1430 if (!expression) |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1431 return NULL; |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1432 |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1433 asdl_seq_SET(values, i / 4, expression); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1434 } |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1435 return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena); |
|
d0b83c4630c0
SF patch 1547796 by Georg Brandl -- set literals.
Guido van Rossum <guido@python.org>
parents:
39678
diff
changeset
|
1436 } |
| 35742 | 1437 } |
| 1438 default: | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1439 PyErr_Format(PyExc_SystemError, "unhandled atom %d", TYPE(ch)); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1440 return NULL; |
| 35742 | 1441 } |
| 1442 } | |
| 1443 | |
| 1444 static slice_ty | |
| 1445 ast_for_slice(struct compiling *c, const node *n) | |
| 1446 { | |
| 1447 node *ch; | |
| 1448 expr_ty lower = NULL, upper = NULL, step = NULL; | |
| 1449 | |
| 1450 REQ(n, subscript); | |
| 1451 | |
| 1452 /* | |
|
39783
7a0ad110e91e
Patch #1550786: ellipsis literal.
Georg Brandl <georg@python.org>
parents:
39782
diff
changeset
|
1453 subscript: test | [test] ':' [test] [sliceop] |
| 35742 | 1454 sliceop: ':' [test] |
| 1455 */ | |
| 1456 ch = CHILD(n, 0); | |
| 1457 if (NCH(n) == 1 && TYPE(ch) == test) { | |
| 1458 /* 'step' variable hold no significance in terms of being used over | |
| 1459 other vars */ | |
| 1460 step = ast_for_expr(c, ch); | |
| 1461 if (!step) | |
| 1462 return NULL; | |
| 1463 | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1464 return Index(step, c->c_arena); |
| 35742 | 1465 } |
| 1466 | |
| 1467 if (TYPE(ch) == test) { | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1468 lower = ast_for_expr(c, ch); |
| 35742 | 1469 if (!lower) |
| 1470 return NULL; | |
| 1471 } | |
| 1472 | |
| 1473 /* If there's an upper bound it's in the second or third position. */ | |
| 1474 if (TYPE(ch) == COLON) { | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1475 if (NCH(n) > 1) { |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1476 node *n2 = CHILD(n, 1); |
| 35742 | 1477 |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1478 if (TYPE(n2) == test) { |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1479 upper = ast_for_expr(c, n2); |
| 35742 | 1480 if (!upper) |
| 1481 return NULL; | |
| 1482 } | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1483 } |
| 35742 | 1484 } else if (NCH(n) > 2) { |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1485 node *n2 = CHILD(n, 2); |
| 35742 | 1486 |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1487 if (TYPE(n2) == test) { |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
1488 upper = ast_for_expr(c, n2); |
| 35742 | 1489 if (!upper) |
| 1490 return NULL; | |
| 1491 } | |
| 1492 } | |
| 1493 | |
| 1494 ch = CHILD(n, NCH(n) - 1); | |
| 1495 if (TYPE(ch) == sliceop) { | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1496 if (NCH(ch) == 1) { |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1497 /* No expression, so step is None */ |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1498 ch = CHILD(ch, 0); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1499 step = Name(new_identifier("None", c->c_arena), Load, |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1500 LINENO(ch), ch->n_col_offset, c->c_arena); |
| 35742 | 1501 if (!step) |
| 1502 return NULL; | |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1503 } else { |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1504 ch = CHILD(ch, 1); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1505 if (TYPE(ch) == test) { |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1506 step = ast_for_expr(c, ch); |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1507 if (!step) |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1508 return NULL; |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1509 } |
| 35742 | 1510 } |
| 1511 } | |
| 1512 | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
1513 return Slice(lower, upper, step, c->c_arena); |
| 35742 | 1514 } |
| 1515 | |
| 1516 static expr_ty | |
| 1517 ast_for_binop(struct compiling *c, const node *n) | |
| 1518 { | |
|
41554
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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diff
changeset
|
1519 /* Must account for a sequence of expressions. |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1520 How should A op B op C by represented? |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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diff
changeset
|
1521 BinOp(BinOp(A, op, B), op, C). |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1522 */ |
| 35742 | 1523 |
|
41554
06145fbc7ab9
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changeset
|
1524 int i, nops; |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1525 expr_ty expr1, expr2, result; |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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parents:
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changeset
|
1526 operator_ty newoperator; |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1527 |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1528 expr1 = ast_for_expr(c, CHILD(n, 0)); |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1529 if (!expr1) |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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diff
changeset
|
1530 return NULL; |
| 35742 | 1531 |
|
41554
06145fbc7ab9
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Guido van Rossum <guido@python.org>
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diff
changeset
|
1532 expr2 = ast_for_expr(c, CHILD(n, 2)); |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1533 if (!expr2) |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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parents:
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changeset
|
1534 return NULL; |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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parents:
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changeset
|
1535 |
|
06145fbc7ab9
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diff
changeset
|
1536 newoperator = get_operator(CHILD(n, 1)); |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1537 if (!newoperator) |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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diff
changeset
|
1538 return NULL; |
| 35742 | 1539 |
|
41554
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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parents:
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diff
changeset
|
1540 result = BinOp(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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changeset
|
1541 c->c_arena); |
|
06145fbc7ab9
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changeset
|
1542 if (!result) |
|
06145fbc7ab9
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diff
changeset
|
1543 return NULL; |
| 35742 | 1544 |
|
41554
06145fbc7ab9
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diff
changeset
|
1545 nops = (NCH(n) - 1) / 2; |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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parents:
41509
diff
changeset
|
1546 for (i = 1; i < nops; i++) { |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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parents:
41509
diff
changeset
|
1547 expr_ty tmp_result, tmp; |
|
06145fbc7ab9
Merged revisions 53952-54987 via svnmerge from
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parents:
41509
diff
changeset
|
1548 const node* next_oper = CHILD(n, i * 2 + 1); |
|
06145fbc7ab9
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changeset
|
1549 |
|
06145fbc7ab9
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parents:
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diff
changeset
|
1550 newoperator = get_operator(next_oper); |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1551 if (!newoperator) |
| 35742 | 1552 return NULL; |
| 1553 | |
|
41554
06145fbc7ab9
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changeset
|
1554 tmp = ast_for_expr(c, CHILD(n, i * 2 + 2)); |
|
06145fbc7ab9
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changeset
|
1555 if (!tmp) |
| 35742 | 1556 return NULL; |
| 1557 | |
|
41554
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changeset
|
1558 tmp_result = BinOp(result, newoperator, tmp, |
|
06145fbc7ab9
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changeset
|
1559 LINENO(next_oper), next_oper->n_col_offset, |
|
06145fbc7ab9
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changeset
|
1560 c->c_arena); |
|
43734
3e5edf19d5f0
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changeset
|
1561 if (!tmp_result) |
|
41554
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|
1562 return NULL; |
|
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|
1563 result = tmp_result; |
|
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|
1564 } |
|
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changeset
|
1565 return result; |
| 35742 | 1566 } |
| 1567 | |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1568 static expr_ty |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1569 ast_for_trailer(struct compiling *c, const node *n, expr_ty left_expr) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
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diff
changeset
|
1570 { |
|
36686
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1571 /* trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1572 subscriptlist: subscript (',' subscript)* [','] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1573 subscript: '.' '.' '.' | test | [test] ':' [test] [sliceop] |
|
8611f39cd82b
Fix parsing of subscriptlist.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36682
diff
changeset
|
1574 */ |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1575 REQ(n, trailer); |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1576 if (TYPE(CHILD(n, 0)) == LPAR) { |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1577 if (NCH(n) == 2) |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1578 return Call(left_expr, NULL, NULL, NULL, NULL, LINENO(n), |
|
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
1579 n->n_col_offset, c->c_arena); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1580 else |
|
36679
e1391910b026
Simplify ast_for_trailer() in anticipation of more changes.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36676
diff
changeset
|
1581 return ast_for_call(c, CHILD(n, 1), left_expr); |
|
35799
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35798
diff
changeset
|
1582 } |
|
36679
e1391910b026
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diff
changeset
|
1583 else if (TYPE(CHILD(n, 0)) == DOT ) { |
|
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Simplify ast_for_trailer() in anticipation of more changes.
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diff
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|
1584 return Attribute(left_expr, NEW_IDENTIFIER(CHILD(n, 1)), Load, |
|
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diff
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|
1585 LINENO(n), n->n_col_offset, c->c_arena); |
|
36679
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|
1586 } |
|
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|
1587 else { |
|
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|
1588 REQ(CHILD(n, 0), LSQB); |
|
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Refactor code for translating "power" nodes.
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|
1589 REQ(CHILD(n, 2), RSQB); |
|
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|
1590 n = CHILD(n, 1); |
|
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|
1591 if (NCH(n) == 1) { |
|
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|
1592 slice_ty slc = ast_for_slice(c, CHILD(n, 0)); |
|
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|
1593 if (!slc) |
|
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|
1594 return NULL; |
|
37879
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|
1595 return Subscript(left_expr, slc, Load, LINENO(n), n->n_col_offset, |
|
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|
1596 c->c_arena); |
|
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|
1597 } |
|
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|
1598 else { |
|
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|
1599 /* The grammar is ambiguous here. The ambiguity is resolved |
|
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Fix parsing of subscriptlist.
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|
1600 by treating the sequence as a tuple literal if there are |
|
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|
1601 no slice features. |
|
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|
1602 */ |
|
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|
1603 int j; |
|
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|
1604 slice_ty slc; |
|
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|
1605 expr_ty e; |
|
40941
2ca14d6a369b
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|
1606 int simple = 1; |
|
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|
1607 asdl_seq *slices, *elts; |
|
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|
1608 slices = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
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|
1609 if (!slices) |
|
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1610 return NULL; |
|
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|
1611 for (j = 0; j < NCH(n); j += 2) { |
|
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|
1612 slc = ast_for_slice(c, CHILD(n, j)); |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
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|
1613 if (!slc) |
|
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|
1614 return NULL; |
|
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|
1615 if (slc->kind != Index_kind) |
|
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|
1616 simple = 0; |
|
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|
1617 asdl_seq_SET(slices, j / 2, slc); |
|
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|
1618 } |
|
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|
1619 if (!simple) { |
|
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|
1620 return Subscript(left_expr, ExtSlice(slices, c->c_arena), |
|
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|
1621 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1622 } |
|
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|
1623 /* extract Index values and put them in a Tuple */ |
|
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|
1624 elts = asdl_seq_new(asdl_seq_LEN(slices), c->c_arena); |
|
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SF #1444030: Fix several potential defects found by Coverity.
Hye-Shik Chang <hyeshik@gmail.com>
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|
1625 if (!elts) |
|
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|
1626 return NULL; |
|
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|
1627 for (j = 0; j < asdl_seq_LEN(slices); ++j) { |
|
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|
1628 slc = (slice_ty)asdl_seq_GET(slices, j); |
|
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|
1629 assert(slc->kind == Index_kind && slc->v.Index.value); |
|
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|
1630 asdl_seq_SET(elts, j, slc->v.Index.value); |
|
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|
1631 } |
|
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|
1632 e = Tuple(elts, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1633 if (!e) |
|
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|
1634 return NULL; |
|
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|
1635 return Subscript(left_expr, Index(e, c->c_arena), |
|
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|
1636 Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1637 } |
|
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|
1638 } |
|
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|
1639 } |
|
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|
1640 |
|
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|
1641 static expr_ty |
|
39442
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|
1642 ast_for_factor(struct compiling *c, const node *n) |
|
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1643 { |
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|
1644 node *pfactor, *ppower, *patom, *pnum; |
|
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|
1645 expr_ty expression; |
|
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|
1646 |
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|
1647 /* If the unary - operator is applied to a constant, don't generate |
|
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|
1648 a UNARY_NEGATIVE opcode. Just store the approriate value as a |
|
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|
1649 constant. The peephole optimizer already does something like |
|
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|
1650 this but it doesn't handle the case where the constant is |
|
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|
1651 (sys.maxint - 1). In that case, we want a PyIntObject, not a |
|
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|
1652 PyLongObject. |
|
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1653 */ |
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|
1654 if (TYPE(CHILD(n, 0)) == MINUS |
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|
1655 && NCH(n) == 2 |
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|
1656 && TYPE((pfactor = CHILD(n, 1))) == factor |
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|
1657 && NCH(pfactor) == 1 |
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1658 && TYPE((ppower = CHILD(pfactor, 0))) == power |
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|
1659 && NCH(ppower) == 1 |
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1660 && TYPE((patom = CHILD(ppower, 0))) == atom |
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1661 && TYPE((pnum = CHILD(patom, 0))) == NUMBER) { |
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|
1662 char *s = PyObject_MALLOC(strlen(STR(pnum)) + 2); |
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1663 if (s == NULL) |
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1664 return NULL; |
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1665 s[0] = '-'; |
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|
1666 strcpy(s + 1, STR(pnum)); |
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1667 PyObject_FREE(STR(pnum)); |
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1668 STR(pnum) = s; |
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1669 return ast_for_atom(c, patom); |
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1670 } |
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1671 |
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1672 expression = ast_for_expr(c, CHILD(n, 1)); |
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1673 if (!expression) |
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1674 return NULL; |
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1675 |
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1676 switch (TYPE(CHILD(n, 0))) { |
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1677 case PLUS: |
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1678 return UnaryOp(UAdd, expression, LINENO(n), n->n_col_offset, |
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1679 c->c_arena); |
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1680 case MINUS: |
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1681 return UnaryOp(USub, expression, LINENO(n), n->n_col_offset, |
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1682 c->c_arena); |
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1683 case TILDE: |
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1684 return UnaryOp(Invert, expression, LINENO(n), |
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1685 n->n_col_offset, c->c_arena); |
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1686 } |
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1687 PyErr_Format(PyExc_SystemError, "unhandled factor: %d", |
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|
1688 TYPE(CHILD(n, 0))); |
|
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|
1689 return NULL; |
|
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|
1690 } |
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1691 |
|
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|
1692 static expr_ty |
|
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diff
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|
1693 ast_for_power(struct compiling *c, const node *n) |
|
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|
1694 { |
|
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|
1695 /* power: atom trailer* ('**' factor)* |
|
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|
1696 */ |
|
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|
1697 int i; |
|
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|
1698 expr_ty e, tmp; |
|
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|
1699 REQ(n, power); |
|
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|
1700 e = ast_for_atom(c, CHILD(n, 0)); |
|
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|
1701 if (!e) |
|
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|
1702 return NULL; |
|
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|
1703 if (NCH(n) == 1) |
|
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|
1704 return e; |
|
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diff
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|
1705 for (i = 1; i < NCH(n); i++) { |
|
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|
1706 node *ch = CHILD(n, i); |
|
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Refactor code for translating "power" nodes.
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diff
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|
1707 if (TYPE(ch) != trailer) |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff
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|
1708 break; |
|
842caa245917
Refactor code for translating "power" nodes.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff
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|
1709 tmp = ast_for_trailer(c, ch, e); |
|
36065
ea083efdc96c
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|
1710 if (!tmp) |
|
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
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|
1711 return NULL; |
|
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|
1712 tmp->lineno = e->lineno; |
|
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|
1713 tmp->col_offset = e->col_offset; |
|
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|
1714 e = tmp; |
|
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|
1715 } |
|
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|
1716 if (TYPE(CHILD(n, NCH(n) - 1)) == factor) { |
|
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|
1717 expr_ty f = ast_for_expr(c, CHILD(n, NCH(n) - 1)); |
|
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1718 if (!f) |
|
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|
1719 return NULL; |
|
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Martin v. Löwis <martin@v.loewis.de>
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|
1720 tmp = BinOp(e, Pow, f, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1721 if (!tmp) |
|
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|
1722 return NULL; |
|
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|
1723 e = tmp; |
|
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|
1724 } |
|
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|
1725 return e; |
|
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
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|
1726 } |
|
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|
1727 |
|
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|
1728 static expr_ty |
|
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|
1729 ast_for_starred(struct compiling *c, const node *n) |
|
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1730 { |
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|
1731 expr_ty tmp; |
|
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|
1732 REQ(n, star_expr); |
|
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|
1733 |
|
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|
1734 tmp = ast_for_expr(c, CHILD(n, 1)); |
|
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|
1735 if (!tmp) |
|
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|
1736 return NULL; |
|
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|
1737 |
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|
1738 /* The Load context is changed later. */ |
|
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|
1739 return Starred(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
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|
1740 } |
|
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|
1741 |
|
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|
1742 |
| 35742 | 1743 /* Do not name a variable 'expr'! Will cause a compile error. |
| 1744 */ | |
| 1745 | |
| 1746 static expr_ty | |
| 1747 ast_for_expr(struct compiling *c, const node *n) | |
| 1748 { | |
| 1749 /* handle the full range of simple expressions | |
|
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changeset
|
1750 test: or_test ['if' or_test 'else' test] | lambdef |
|
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Nick Coghlan <ncoghlan@gmail.com>
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diff
changeset
|
1751 test_nocond: or_test | lambdef_nocond |
|
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Thomas Wouters <thomas@python.org>
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diff
changeset
|
1752 or_test: and_test ('or' and_test)* |
| 35742 | 1753 and_test: not_test ('and' not_test)* |
| 1754 not_test: 'not' not_test | comparison | |
| 1755 comparison: expr (comp_op expr)* | |
| 1756 expr: xor_expr ('|' xor_expr)* | |
| 1757 xor_expr: and_expr ('^' and_expr)* | |
| 1758 and_expr: shift_expr ('&' shift_expr)* | |
| 1759 shift_expr: arith_expr (('<<'|'>>') arith_expr)* | |
| 1760 arith_expr: term (('+'|'-') term)* | |
| 1761 term: factor (('*'|'/'|'%'|'//') factor)* | |
| 1762 factor: ('+'|'-'|'~') factor | power | |
| 1763 power: atom trailer* ('**' factor)* | |
| 1764 */ | |
| 1765 | |
| 1766 asdl_seq *seq; | |
| 1767 int i; | |
| 1768 | |
| 1769 loop: | |
| 1770 switch (TYPE(n)) { | |
| 1771 case test: | |
|
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Nick Coghlan <ncoghlan@gmail.com>
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diff
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|
1772 case test_nocond: |
|
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Thomas Wouters <thomas@python.org>
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|
1773 if (TYPE(CHILD(n, 0)) == lambdef || |
|
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parents:
41235
diff
changeset
|
1774 TYPE(CHILD(n, 0)) == lambdef_nocond) |
| 35742 | 1775 return ast_for_lambdef(c, CHILD(n, 0)); |
|
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|
1776 else if (NCH(n) > 1) |
|
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|
1777 return ast_for_ifexpr(c, n); |
|
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|
1778 /* Fallthrough */ |
|
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|
1779 case or_test: |
| 35742 | 1780 case and_test: |
| 1781 if (NCH(n) == 1) { | |
| 1782 n = CHILD(n, 0); | |
| 1783 goto loop; | |
| 1784 } | |
|
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|
1785 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 1786 if (!seq) |
| 1787 return NULL; | |
| 1788 for (i = 0; i < NCH(n); i += 2) { | |
| 1789 expr_ty e = ast_for_expr(c, CHILD(n, i)); | |
| 1790 if (!e) | |
| 1791 return NULL; | |
| 1792 asdl_seq_SET(seq, i / 2, e); | |
| 1793 } | |
| 1794 if (!strcmp(STR(CHILD(n, 1)), "and")) | |
|
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|
1795 return BoolOp(And, seq, LINENO(n), n->n_col_offset, |
|
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|
1796 c->c_arena); |
|
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|
1797 assert(!strcmp(STR(CHILD(n, 1)), "or")); |
|
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|
1798 return BoolOp(Or, seq, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 1799 case not_test: |
| 1800 if (NCH(n) == 1) { | |
| 1801 n = CHILD(n, 0); | |
| 1802 goto loop; | |
| 1803 } | |
| 1804 else { | |
| 1805 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); | |
| 1806 if (!expression) | |
| 1807 return NULL; | |
| 1808 | |
|
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|
1809 return UnaryOp(Not, expression, LINENO(n), n->n_col_offset, |
|
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|
1810 c->c_arena); |
| 35742 | 1811 } |
| 1812 case comparison: | |
| 1813 if (NCH(n) == 1) { | |
| 1814 n = CHILD(n, 0); | |
| 1815 goto loop; | |
| 1816 } | |
| 1817 else { | |
| 1818 expr_ty expression; | |
|
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|
1819 asdl_int_seq *ops; |
|
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|
1820 asdl_seq *cmps; |
|
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|
1821 ops = asdl_int_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 1822 if (!ops) |
| 1823 return NULL; | |
|
36065
ea083efdc96c
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|
1824 cmps = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 1825 if (!cmps) { |
| 1826 return NULL; | |
| 1827 } | |
| 1828 for (i = 1; i < NCH(n); i += 2) { | |
|
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|
1829 cmpop_ty newoperator; |
| 35742 | 1830 |
|
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changeset
|
1831 newoperator = ast_for_comp_op(c, CHILD(n, i)); |
|
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|
1832 if (!newoperator) { |
| 35742 | 1833 return NULL; |
|
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|
1834 } |
| 35742 | 1835 |
| 1836 expression = ast_for_expr(c, CHILD(n, i + 1)); | |
|
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|
1837 if (!expression) { |
| 35742 | 1838 return NULL; |
|
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|
1839 } |
| 35742 | 1840 |
|
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changeset
|
1841 asdl_seq_SET(ops, i / 2, newoperator); |
| 35742 | 1842 asdl_seq_SET(cmps, i / 2, expression); |
| 1843 } | |
| 1844 expression = ast_for_expr(c, CHILD(n, 0)); | |
|
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|
1845 if (!expression) { |
| 35742 | 1846 return NULL; |
|
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|
1847 } |
| 35742 | 1848 |
|
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changeset
|
1849 return Compare(expression, ops, cmps, LINENO(n), |
|
f731859e9b3b
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Thomas Wouters <thomas@python.org>
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changeset
|
1850 n->n_col_offset, c->c_arena); |
| 35742 | 1851 } |
| 1852 break; | |
| 1853 | |
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1854 case star_expr: |
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1855 if (TYPE(CHILD(n, 0)) == STAR) { |
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1856 return ast_for_starred(c, n); |
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1857 } |
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1858 /* Fallthrough */ |
| 35742 | 1859 /* The next five cases all handle BinOps. The main body of code |
| 1860 is the same in each case, but the switch turned inside out to | |
| 1861 reuse the code for each type of operator. | |
| 1862 */ | |
| 1863 case expr: | |
| 1864 case xor_expr: | |
| 1865 case and_expr: | |
| 1866 case shift_expr: | |
| 1867 case arith_expr: | |
| 1868 case term: | |
| 1869 if (NCH(n) == 1) { | |
| 1870 n = CHILD(n, 0); | |
| 1871 goto loop; | |
| 1872 } | |
| 1873 return ast_for_binop(c, n); | |
| 1874 case yield_expr: { | |
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1875 expr_ty exp = NULL; |
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1876 if (NCH(n) == 2) { |
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1877 exp = ast_for_testlist(c, CHILD(n, 1)); |
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1878 if (!exp) |
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1879 return NULL; |
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1880 } |
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1881 return Yield(exp, LINENO(n), n->n_col_offset, c->c_arena); |
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1882 } |
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1883 case factor: |
| 35742 | 1884 if (NCH(n) == 1) { |
| 1885 n = CHILD(n, 0); | |
| 1886 goto loop; | |
| 1887 } | |
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1888 return ast_for_factor(c, n); |
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1889 case power: |
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1890 return ast_for_power(c, n); |
| 35742 | 1891 default: |
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1892 PyErr_Format(PyExc_SystemError, "unhandled expr: %d", TYPE(n)); |
| 35742 | 1893 return NULL; |
| 1894 } | |
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1895 /* should never get here unless if error is set */ |
| 35742 | 1896 return NULL; |
| 1897 } | |
| 1898 | |
| 1899 static expr_ty | |
| 1900 ast_for_call(struct compiling *c, const node *n, expr_ty func) | |
| 1901 { | |
| 1902 /* | |
| 1903 arglist: (argument ',')* (argument [',']| '*' test [',' '**' test] | |
| 1904 | '**' test) | |
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1905 argument: [test '='] test [comp_for] # Really [keyword '='] test |
| 35742 | 1906 */ |
| 1907 | |
| 1908 int i, nargs, nkeywords, ngens; | |
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1909 asdl_seq *args; |
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1910 asdl_seq *keywords; |
| 35742 | 1911 expr_ty vararg = NULL, kwarg = NULL; |
| 1912 | |
| 1913 REQ(n, arglist); | |
| 1914 | |
| 1915 nargs = 0; | |
| 1916 nkeywords = 0; | |
| 1917 ngens = 0; | |
| 1918 for (i = 0; i < NCH(n); i++) { | |
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1919 node *ch = CHILD(n, i); |
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1920 if (TYPE(ch) == argument) { |
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1921 if (NCH(ch) == 1) |
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1922 nargs++; |
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1923 else if (TYPE(CHILD(ch, 1)) == comp_for) |
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1924 ngens++; |
| 35742 | 1925 else |
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1926 nkeywords++; |
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1927 } |
| 35742 | 1928 } |
| 1929 if (ngens > 1 || (ngens && (nargs || nkeywords))) { | |
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1930 ast_error(n, "Generator expression must be parenthesized " |
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1931 "if not sole argument"); |
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1932 return NULL; |
| 35742 | 1933 } |
| 1934 | |
| 1935 if (nargs + nkeywords + ngens > 255) { | |
| 1936 ast_error(n, "more than 255 arguments"); | |
| 1937 return NULL; | |
| 1938 } | |
| 1939 | |
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1940 args = asdl_seq_new(nargs + ngens, c->c_arena); |
| 35742 | 1941 if (!args) |
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1942 return NULL; |
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1943 keywords = asdl_seq_new(nkeywords, c->c_arena); |
| 35742 | 1944 if (!keywords) |
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1945 return NULL; |
| 35742 | 1946 nargs = 0; |
| 1947 nkeywords = 0; | |
| 1948 for (i = 0; i < NCH(n); i++) { | |
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1949 node *ch = CHILD(n, i); |
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1950 if (TYPE(ch) == argument) { |
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1951 expr_ty e; |
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1952 if (NCH(ch) == 1) { |
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1953 if (nkeywords) { |
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1954 ast_error(CHILD(ch, 0), |
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1955 "non-keyword arg after keyword arg"); |
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1956 return NULL; |
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1957 } |
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1958 e = ast_for_expr(c, CHILD(ch, 0)); |
| 35742 | 1959 if (!e) |
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1960 return NULL; |
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1961 asdl_seq_SET(args, nargs++, e); |
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1962 } |
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1963 else if (TYPE(CHILD(ch, 1)) == comp_for) { |
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1964 e = ast_for_genexp(c, ch); |
| 35742 | 1965 if (!e) |
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1966 return NULL; |
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1967 asdl_seq_SET(args, nargs++, e); |
| 35742 | 1968 } |
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1969 else { |
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1970 keyword_ty kw; |
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1971 identifier key; |
| 35742 | 1972 |
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1973 /* CHILD(ch, 0) is test, but must be an identifier? */ |
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1974 e = ast_for_expr(c, CHILD(ch, 0)); |
| 35742 | 1975 if (!e) |
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1976 return NULL; |
| 35742 | 1977 /* f(lambda x: x[0] = 3) ends up getting parsed with |
| 1978 * LHS test = lambda x: x[0], and RHS test = 3. | |
| 1979 * SF bug 132313 points out that complaining about a keyword | |
| 1980 * then is very confusing. | |
| 1981 */ | |
| 1982 if (e->kind == Lambda_kind) { | |
| 1983 ast_error(CHILD(ch, 0), "lambda cannot contain assignment"); | |
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1984 return NULL; |
| 35742 | 1985 } else if (e->kind != Name_kind) { |
| 1986 ast_error(CHILD(ch, 0), "keyword can't be an expression"); | |
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1987 return NULL; |
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1988 } else if (forbidden_name(e, ch)) { |
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1989 return NULL; |
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1990 } |
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1991 key = e->v.Name.id; |
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1992 e = ast_for_expr(c, CHILD(ch, 2)); |
| 35742 | 1993 if (!e) |
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1994 return NULL; |
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1995 kw = keyword(key, e, c->c_arena); |
| 35742 | 1996 if (!kw) |
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1997 return NULL; |
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1998 asdl_seq_SET(keywords, nkeywords++, kw); |
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1999 } |
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2000 } |
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2001 else if (TYPE(ch) == STAR) { |
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2002 vararg = ast_for_expr(c, CHILD(n, i+1)); |
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2003 if (!vararg) |
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2004 return NULL; |
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2005 i++; |
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2006 } |
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2007 else if (TYPE(ch) == DOUBLESTAR) { |
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2008 kwarg = ast_for_expr(c, CHILD(n, i+1)); |
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2009 if (!kwarg) |
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2010 return NULL; |
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2011 i++; |
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2012 } |
| 35742 | 2013 } |
| 2014 | |
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2015 return Call(func, args, keywords, vararg, kwarg, func->lineno, func->col_offset, c->c_arena); |
| 35742 | 2016 } |
| 2017 | |
| 2018 static expr_ty | |
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2019 ast_for_testlist(struct compiling *c, const node* n) |
| 35742 | 2020 { |
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2021 /* testlist_comp: test (comp_for | (',' test)* [',']) */ |
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857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
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diff
changeset
|
2022 /* testlist: test (',' test)* [','] */ |
|
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diff
changeset
|
2023 /* testlist1: test (',' test)* */ |
| 35742 | 2024 assert(NCH(n) > 0); |
|
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Hide list comp variables and support set comprehensions
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parents:
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diff
changeset
|
2025 if (TYPE(n) == testlist_comp) { |
|
35798
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Write a separate ast_for_testlist_gexp() function instead of overloading
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diff
changeset
|
2026 if (NCH(n) > 1) |
|
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parents:
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diff
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|
2027 assert(TYPE(CHILD(n, 1)) != comp_for); |
|
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diff
changeset
|
2028 } |
|
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diff
changeset
|
2029 else { |
|
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parents:
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diff
changeset
|
2030 assert(TYPE(n) == testlist || |
|
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|
2031 TYPE(n) == testlist1); |
|
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|
2032 } |
| 35742 | 2033 if (NCH(n) == 1) |
|
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|
2034 return ast_for_expr(c, CHILD(n, 0)); |
| 35742 | 2035 else { |
| 2036 asdl_seq *tmp = seq_for_testlist(c, n); | |
| 2037 if (!tmp) | |
| 2038 return NULL; | |
|
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|
2039 return Tuple(tmp, Load, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2040 } |
|
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diff
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|
2041 } |
|
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diff
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|
2042 |
| 35742 | 2043 static stmt_ty |
| 2044 ast_for_expr_stmt(struct compiling *c, const node *n) | |
| 2045 { | |
| 2046 REQ(n, expr_stmt); | |
| 2047 /* expr_stmt: testlist (augassign (yield_expr|testlist) | |
| 2048 | ('=' (yield_expr|testlist))*) | |
| 2049 testlist: test (',' test)* [','] | |
| 2050 augassign: '+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' | |
|
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|
2051 | '<<=' | '>>=' | '**=' | '//=' |
| 35742 | 2052 test: ... here starts the operator precendence dance |
| 2053 */ | |
| 2054 | |
| 2055 if (NCH(n) == 1) { | |
|
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|
2056 expr_ty e = ast_for_testlist(c, CHILD(n, 0)); |
| 35742 | 2057 if (!e) |
| 2058 return NULL; | |
| 2059 | |
|
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|
2060 return Expr(e, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2061 } |
| 2062 else if (TYPE(CHILD(n, 1)) == augassign) { | |
| 2063 expr_ty expr1, expr2; | |
|
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|
2064 operator_ty newoperator; |
|
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|
2065 node *ch = CHILD(n, 0); |
| 35742 | 2066 |
|
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|
2067 expr1 = ast_for_testlist(c, ch); |
| 35742 | 2068 if (!expr1) |
| 2069 return NULL; | |
|
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|
2070 /* TODO(nas): Remove duplicated error checks (set_context does it) */ |
|
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|
2071 switch (expr1->kind) { |
|
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Improved handling of syntax errors.
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|
2072 case GeneratorExp_kind: |
|
a625e8876407
Improved handling of syntax errors.
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|
2073 ast_error(ch, "augmented assignment to generator " |
|
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Improved handling of syntax errors.
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|
2074 "expression not possible"); |
|
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Improved handling of syntax errors.
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|
2075 return NULL; |
|
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|
2076 case Yield_kind: |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
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|
2077 ast_error(ch, "augmented assignment to yield " |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
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|
2078 "expression not possible"); |
|
654c380cf8b9
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|
2079 return NULL; |
|
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|
2080 case Name_kind: { |
|
41969
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|
2081 if (forbidden_name(expr1, ch)) |
|
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|
2082 return NULL; |
|
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|
2083 break; |
|
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|
2084 } |
|
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|
2085 case Attribute_kind: |
|
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|
2086 case Subscript_kind: |
|
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|
2087 break; |
|
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Improved handling of syntax errors.
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|
2088 default: |
|
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Improved handling of syntax errors.
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|
2089 ast_error(ch, "illegal expression for augmented " |
|
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Improved handling of syntax errors.
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|
2090 "assignment"); |
|
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|
2091 return NULL; |
| 35742 | 2092 } |
|
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|
2093 if(!set_context(c, expr1, Store, ch)) |
|
031dfe455585
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|
2094 return NULL; |
| 35742 | 2095 |
|
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|
2096 ch = CHILD(n, 2); |
|
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|
2097 if (TYPE(ch) == testlist) |
|
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|
2098 expr2 = ast_for_testlist(c, ch); |
|
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|
2099 else |
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|
2100 expr2 = ast_for_expr(c, ch); |
|
36072
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Neal Norwitz <nnorwitz@gmail.com>
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36066
diff
changeset
|
2101 if (!expr2) |
| 35742 | 2102 return NULL; |
| 2103 | |
|
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031dfe455585
Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
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|
2104 newoperator = ast_for_augassign(c, CHILD(n, 1)); |
|
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|
2105 if (!newoperator) |
| 35742 | 2106 return NULL; |
| 2107 | |
|
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|
2108 return AugAssign(expr1, newoperator, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2109 } |
| 2110 else { | |
|
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|
2111 int i; |
|
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|
2112 asdl_seq *targets; |
|
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|
2113 node *value; |
| 35742 | 2114 expr_ty expression; |
| 2115 | |
|
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|
2116 /* a normal assignment */ |
|
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|
2117 REQ(CHILD(n, 1), EQUAL); |
|
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|
2118 targets = asdl_seq_new(NCH(n) / 2, c->c_arena); |
|
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Four months of trunk changes (including a few releases...)
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|
2119 if (!targets) |
|
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|
2120 return NULL; |
|
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|
2121 for (i = 0; i < NCH(n) - 2; i += 2) { |
|
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|
2122 expr_ty e; |
|
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|
2123 node *ch = CHILD(n, i); |
|
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|
2124 if (TYPE(ch) == yield_expr) { |
|
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|
2125 ast_error(ch, "assignment to yield expression not possible"); |
|
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|
2126 return NULL; |
|
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|
2127 } |
|
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changeset
|
2128 e = ast_for_testlist(c, ch); |
| 35742 | 2129 |
|
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|
2130 /* set context to assign */ |
|
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|
2131 if (!e) |
|
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40215
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changeset
|
2132 return NULL; |
| 35742 | 2133 |
|
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Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
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|
2134 if (!set_context(c, e, Store, CHILD(n, i))) |
|
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|
2135 return NULL; |
| 35742 | 2136 |
|
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|
2137 asdl_seq_SET(targets, i / 2, e); |
|
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|
2138 } |
|
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changeset
|
2139 value = CHILD(n, NCH(n) - 1); |
|
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|
2140 if (TYPE(value) == testlist) |
|
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40215
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changeset
|
2141 expression = ast_for_testlist(c, value); |
|
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|
2142 else |
|
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|
2143 expression = ast_for_expr(c, value); |
|
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changeset
|
2144 if (!expression) |
|
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|
2145 return NULL; |
|
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changeset
|
2146 return Assign(targets, expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2147 } |
| 2148 } | |
| 2149 | |
| 2150 static asdl_seq * | |
|
37879
f731859e9b3b
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Thomas Wouters <thomas@python.org>
parents:
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changeset
|
2151 ast_for_exprlist(struct compiling *c, const node *n, expr_context_ty context) |
| 35742 | 2152 { |
| 2153 asdl_seq *seq; | |
| 2154 int i; | |
| 2155 expr_ty e; | |
| 2156 | |
| 2157 REQ(n, exprlist); | |
| 2158 | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2159 seq = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
| 35742 | 2160 if (!seq) |
|
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|
2161 return NULL; |
| 35742 | 2162 for (i = 0; i < NCH(n); i += 2) { |
|
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|
2163 e = ast_for_expr(c, CHILD(n, i)); |
|
cc992d75d5b3
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Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2164 if (!e) |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
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parents:
40215
diff
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|
2165 return NULL; |
|
cc992d75d5b3
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Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2166 asdl_seq_SET(seq, i / 2, e); |
|
46664
031dfe455585
Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
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parents:
46306
diff
changeset
|
2167 if (context && !set_context(c, e, context, CHILD(n, i))) |
|
40450
cc992d75d5b3
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parents:
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diff
changeset
|
2168 return NULL; |
| 35742 | 2169 } |
| 2170 return seq; | |
| 2171 } | |
| 2172 | |
| 2173 static stmt_ty | |
| 2174 ast_for_del_stmt(struct compiling *c, const node *n) | |
| 2175 { | |
| 2176 asdl_seq *expr_list; | |
| 2177 | |
| 2178 /* del_stmt: 'del' exprlist */ | |
| 2179 REQ(n, del_stmt); | |
| 2180 | |
| 2181 expr_list = ast_for_exprlist(c, CHILD(n, 1), Del); | |
| 2182 if (!expr_list) | |
| 2183 return NULL; | |
|
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57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
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parents:
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diff
changeset
|
2184 return Delete(expr_list, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2185 } |
| 2186 | |
| 2187 static stmt_ty | |
| 2188 ast_for_flow_stmt(struct compiling *c, const node *n) | |
| 2189 { | |
| 2190 /* | |
| 2191 flow_stmt: break_stmt | continue_stmt | return_stmt | raise_stmt | |
| 2192 | yield_stmt | |
| 2193 break_stmt: 'break' | |
| 2194 continue_stmt: 'continue' | |
| 2195 return_stmt: 'return' [testlist] | |
| 2196 yield_stmt: yield_expr | |
| 2197 yield_expr: 'yield' testlist | |
| 2198 raise_stmt: 'raise' [test [',' test [',' test]]] | |
| 2199 */ | |
| 2200 node *ch; | |
| 2201 | |
| 2202 REQ(n, flow_stmt); | |
| 2203 ch = CHILD(n, 0); | |
| 2204 switch (TYPE(ch)) { | |
| 2205 case break_stmt: | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
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parents:
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diff
changeset
|
2206 return Break(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2207 case continue_stmt: |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
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parents:
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diff
changeset
|
2208 return Continue(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2209 case yield_stmt: { /* will reduce to yield_expr */ |
|
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parents:
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diff
changeset
|
2210 expr_ty exp = ast_for_expr(c, CHILD(ch, 0)); |
|
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parents:
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|
2211 if (!exp) |
|
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parents:
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|
2212 return NULL; |
|
36786
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parents:
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diff
changeset
|
2213 return Expr(exp, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2214 } |
| 2215 case return_stmt: | |
| 2216 if (NCH(ch) == 1) | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
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parents:
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diff
changeset
|
2217 return Return(NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2218 else { |
|
35798
857f68fba275
Write a separate ast_for_testlist_gexp() function instead of overloading
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents:
35771
diff
changeset
|
2219 expr_ty expression = ast_for_testlist(c, CHILD(ch, 1)); |
| 35742 | 2220 if (!expression) |
| 2221 return NULL; | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
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parents:
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diff
changeset
|
2222 return Return(expression, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2223 } |
| 2224 case raise_stmt: | |
| 2225 if (NCH(ch) == 1) | |
|
43102
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Collin Winter <collinw@gmail.com>
parents:
42597
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|
2226 return Raise(NULL, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
|
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parents:
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diff
changeset
|
2227 else if (NCH(ch) >= 2) { |
|
981ecc526703
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parents:
42597
diff
changeset
|
2228 expr_ty cause = NULL; |
| 35742 | 2229 expr_ty expression = ast_for_expr(c, CHILD(ch, 1)); |
| 2230 if (!expression) | |
| 2231 return NULL; | |
|
43102
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parents:
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diff
changeset
|
2232 if (NCH(ch) == 4) { |
|
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parents:
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diff
changeset
|
2233 cause = ast_for_expr(c, CHILD(ch, 3)); |
|
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parents:
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|
2234 if (!cause) |
|
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parents:
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|
2235 return NULL; |
|
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parents:
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diff
changeset
|
2236 } |
|
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parents:
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diff
changeset
|
2237 return Raise(expression, cause, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2238 } |
| 2239 default: | |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2240 PyErr_Format(PyExc_SystemError, |
| 35742 | 2241 "unexpected flow_stmt: %d", TYPE(ch)); |
| 2242 return NULL; | |
| 2243 } | |
|
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parents:
36066
diff
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|
2244 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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parents:
36066
diff
changeset
|
2245 PyErr_SetString(PyExc_SystemError, "unhandled flow statement"); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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parents:
36066
diff
changeset
|
2246 return NULL; |
| 35742 | 2247 } |
| 2248 | |
| 2249 static alias_ty | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2250 alias_for_import_name(struct compiling *c, const node *n) |
| 35742 | 2251 { |
| 2252 /* | |
|
36742
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2253 import_as_name: NAME ['as' NAME] |
|
658f8ff2a442
Make 'as' an actual keyword when with's future statement is used. Not
Thomas Wouters <thomas@python.org>
parents:
36718
diff
changeset
|
2254 dotted_as_name: dotted_name ['as' NAME] |
| 35742 | 2255 dotted_name: NAME ('.' NAME)* |
| 2256 */ | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2257 PyObject *str; |
|
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2258 |
| 35742 | 2259 loop: |
| 2260 switch (TYPE(n)) { | |
| 2261 case import_as_name: | |
|
39442
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2262 str = NULL; |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2263 if (NCH(n) == 3) { |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2264 str = NEW_IDENTIFIER(CHILD(n, 2)); |
|
654c380cf8b9
Merged revisions 46753-51188 via svnmerge from
Thomas Wouters <thomas@python.org>
parents:
38453
diff
changeset
|
2265 } |
|
36072
de16a85c3b4c
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parents:
36066
diff
changeset
|
2266 return alias(NEW_IDENTIFIER(CHILD(n, 0)), str, c->c_arena); |
| 35742 | 2267 case dotted_as_name: |
| 2268 if (NCH(n) == 1) { | |
| 2269 n = CHILD(n, 0); | |
| 2270 goto loop; | |
| 2271 } | |
| 2272 else { | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2273 alias_ty a = alias_for_import_name(c, CHILD(n, 0)); |
|
39610
3674f20ac781
Merge current trunk into p3yk. This includes the PyNumber_Index API change,
Thomas Wouters <thomas@python.org>
parents:
39442
diff
changeset
|
2274 if (!a) |
|
3674f20ac781
Merge current trunk into p3yk. This includes the PyNumber_Index API change,
Thomas Wouters <thomas@python.org>
parents:
39442
diff
changeset
|
2275 return NULL; |
| 35742 | 2276 assert(!a->asname); |
| 2277 a->asname = NEW_IDENTIFIER(CHILD(n, 2)); | |
| 2278 return a; | |
| 2279 } | |
| 2280 break; | |
| 2281 case dotted_name: | |
| 2282 if (NCH(n) == 1) | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2283 return alias(NEW_IDENTIFIER(CHILD(n, 0)), NULL, c->c_arena); |
| 35742 | 2284 else { |
| 2285 /* Create a string of the form "a.b.c" */ | |
|
36242
0f5189607264
Repair bizarre indentation created by VC 7.1.
Tim Peters <tim.peters@gmail.com>
parents:
36241
diff
changeset
|
2286 int i; |
|
36241
557e9b6ee7e1
alias_for_import_name(): Dueling compiler warnings ;-)
Tim Peters <tim.peters@gmail.com>
parents:
36231
diff
changeset
|
2287 size_t len; |
| 35742 | 2288 char *s; |
|
42013
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2289 PyObject *uni; |
| 35742 | 2290 |
| 2291 len = 0; | |
| 2292 for (i = 0; i < NCH(n); i += 2) | |
| 2293 /* length of string plus one for the dot */ | |
| 2294 len += strlen(STR(CHILD(n, i))) + 1; | |
| 2295 len--; /* the last name doesn't have a dot */ | |
| 2296 str = PyString_FromStringAndSize(NULL, len); | |
| 2297 if (!str) | |
| 2298 return NULL; | |
| 2299 s = PyString_AS_STRING(str); | |
| 2300 if (!s) | |
| 2301 return NULL; | |
| 2302 for (i = 0; i < NCH(n); i += 2) { | |
| 2303 char *sch = STR(CHILD(n, i)); | |
| 2304 strcpy(s, STR(CHILD(n, i))); | |
| 2305 s += strlen(sch); | |
| 2306 *s++ = '.'; | |
| 2307 } | |
| 2308 --s; | |
| 2309 *s = '\0'; | |
|
42013
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2310 uni = PyUnicode_DecodeUTF8(PyString_AS_STRING(str), |
|
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2311 PyString_GET_SIZE(str), |
|
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2312 NULL); |
|
cd125fe83051
Make identifiers str (not str8) objects throughout.
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parents:
41969
diff
changeset
|
2313 Py_DECREF(str); |
|
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2314 if (!uni) |
|
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2315 return NULL; |
|
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2316 str = uni; |
|
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2317 PyUnicode_InternInPlace(&str); |
|
40450
cc992d75d5b3
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Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2318 PyArena_AddPyObject(c->c_arena, str); |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2319 return alias(str, NULL, c->c_arena); |
| 35742 | 2320 } |
| 2321 break; | |
| 2322 case STAR: | |
|
42013
cd125fe83051
Make identifiers str (not str8) objects throughout.
Martin v. Löwis <martin@v.loewis.de>
parents:
41969
diff
changeset
|
2323 str = PyUnicode_InternFromString("*"); |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2324 PyArena_AddPyObject(c->c_arena, str); |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2325 return alias(str, NULL, c->c_arena); |
| 35742 | 2326 default: |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2327 PyErr_Format(PyExc_SystemError, |
| 35742 | 2328 "unexpected import name: %d", TYPE(n)); |
| 2329 return NULL; | |
| 2330 } | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2331 |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2332 PyErr_SetString(PyExc_SystemError, "unhandled import name condition"); |
| 35742 | 2333 return NULL; |
| 2334 } | |
| 2335 | |
| 2336 static stmt_ty | |
| 2337 ast_for_import_stmt(struct compiling *c, const node *n) | |
| 2338 { | |
| 2339 /* | |
| 2340 import_stmt: import_name | import_from | |
| 2341 import_name: 'import' dotted_as_names | |
|
41235
6c8c33a43a15
"from ... import x" should not be a syntax error... make
Georg Brandl <georg@python.org>
parents:
41230
diff
changeset
|
2342 import_from: 'from' (('.' | '...')* dotted_name | ('.' | '...')+) |
|
6c8c33a43a15
"from ... import x" should not be a syntax error... make
Georg Brandl <georg@python.org>
parents:
41230
diff
changeset
|
2343 'import' ('*' | '(' import_as_names ')' | import_as_names) |
| 35742 | 2344 */ |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2345 int lineno; |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2346 int col_offset; |
| 35742 | 2347 int i; |
| 2348 asdl_seq *aliases; | |
| 2349 | |
| 2350 REQ(n, import_stmt); | |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2351 lineno = LINENO(n); |
|
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2352 col_offset = n->n_col_offset; |
| 35742 | 2353 n = CHILD(n, 0); |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2354 if (TYPE(n) == import_name) { |
| 35742 | 2355 n = CHILD(n, 1); |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2356 REQ(n, dotted_as_names); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2357 aliases = asdl_seq_new((NCH(n) + 1) / 2, c->c_arena); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2358 if (!aliases) |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2359 return NULL; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2360 for (i = 0; i < NCH(n); i += 2) { |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2361 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2362 if (!import_alias) |
| 35742 | 2363 return NULL; |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2364 asdl_seq_SET(aliases, i / 2, import_alias); |
| 35742 | 2365 } |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2366 return Import(aliases, lineno, col_offset, c->c_arena); |
| 35742 | 2367 } |
|
36682
52cbc447e1c9
And some more cleanup.
Thomas Wouters <thomas@python.org>
parents:
36681
diff
changeset
|
2368 else if (TYPE(n) == import_from) { |
| 35742 | 2369 int n_children; |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2370 int idx, ndots = 0; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2371 alias_ty mod = NULL; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2372 identifier modname; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2373 |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2374 /* Count the number of dots (for relative imports) and check for the |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2375 optional module name */ |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2376 for (idx = 1; idx < NCH(n); idx++) { |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2377 if (TYPE(CHILD(n, idx)) == dotted_name) { |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2378 mod = alias_for_import_name(c, CHILD(n, idx)); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2379 idx++; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2380 break; |
|
41235
6c8c33a43a15
"from ... import x" should not be a syntax error... make
Georg Brandl <georg@python.org>
parents:
41230
diff
changeset
|
2381 } else if (TYPE(CHILD(n, idx)) == ELLIPSIS) { |
|
6c8c33a43a15
"from ... import x" should not be a syntax error... make
Georg Brandl <georg@python.org>
parents:
41230
diff
changeset
|
2382 /* three consecutive dots are tokenized as one ELLIPSIS */ |
|
6c8c33a43a15
"from ... import x" should not be a syntax error... make
Georg Brandl <georg@python.org>
parents:
41230
diff
changeset
|
2383 ndots += 3; |
|
6c8c33a43a15
"from ... import x" should not be a syntax error... make
Georg Brandl <georg@python.org>
parents:
41230
diff
changeset
|
2384 continue; |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2385 } else if (TYPE(CHILD(n, idx)) != DOT) { |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2386 break; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2387 } |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2388 ndots++; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2389 } |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2390 idx++; /* skip over the 'import' keyword */ |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2391 switch (TYPE(CHILD(n, idx))) { |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2392 case STAR: |
|
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2393 /* from ... import * */ |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2394 n = CHILD(n, idx); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2395 n_children = 1; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2396 break; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2397 case LPAR: |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2398 /* from ... import (x, y, z) */ |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2399 n = CHILD(n, idx + 1); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2400 n_children = NCH(n); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2401 break; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2402 case import_as_names: |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2403 /* from ... import x, y, z */ |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2404 n = CHILD(n, idx); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2405 n_children = NCH(n); |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2406 if (n_children % 2 == 0) { |
| 35742 | 2407 ast_error(n, "trailing comma not allowed without" |
| 2408 " surrounding parentheses"); | |
| 2409 return NULL; | |
| 2410 } | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2411 break; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2412 default: |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2413 ast_error(n, "Unexpected node-type in from-import"); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2414 return NULL; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2415 } |
| 35742 | 2416 |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2417 aliases = asdl_seq_new((n_children + 1) / 2, c->c_arena); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2418 if (!aliases) |
| 35742 | 2419 return NULL; |
| 2420 | |
| 2421 /* handle "from ... import *" special b/c there's no children */ | |
|
36681
e9f0db429f2b
Clean up from-import handling.
Thomas Wouters <thomas@python.org>
parents:
36679
diff
changeset
|
2422 if (TYPE(n) == STAR) { |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2423 alias_ty import_alias = alias_for_import_name(c, n); |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2424 if (!import_alias) |
| 35742 | 2425 return NULL; |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2426 asdl_seq_SET(aliases, 0, import_alias); |
| 35742 | 2427 } |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2428 else { |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2429 for (i = 0; i < NCH(n); i += 2) { |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2430 alias_ty import_alias = alias_for_import_name(c, CHILD(n, i)); |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2431 if (!import_alias) |
|
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2432 return NULL; |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2433 asdl_seq_SET(aliases, i / 2, import_alias); |
|
36718
45e6f901902c
Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
36712
diff
changeset
|
2434 } |
| 35742 | 2435 } |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2436 if (mod != NULL) |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2437 modname = mod->name; |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2438 else |
|
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2439 modname = new_identifier("", c->c_arena); |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2440 return ImportFrom(modname, aliases, ndots, lineno, col_offset, |
|
36712
5c36c222e7ca
SF patch #1438387, PEP 328: relative and absolute imports.
Thomas Wouters <thomas@python.org>
parents:
36695
diff
changeset
|
2441 c->c_arena); |
| 35742 | 2442 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2443 PyErr_Format(PyExc_SystemError, |
| 35742 | 2444 "unknown import statement: starts with command '%s'", |
| 2445 STR(CHILD(n, 0))); | |
| 2446 return NULL; | |
| 2447 } | |
| 2448 | |
| 2449 static stmt_ty | |
| 2450 ast_for_global_stmt(struct compiling *c, const node *n) | |
| 2451 { | |
| 2452 /* global_stmt: 'global' NAME (',' NAME)* */ | |
| 2453 identifier name; | |
| 2454 asdl_seq *s; | |
| 2455 int i; | |
| 2456 | |
| 2457 REQ(n, global_stmt); | |
|
36065
ea083efdc96c
Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
Neal Norwitz <nnorwitz@gmail.com>
parents:
36001
diff
changeset
|
2458 s = asdl_seq_new(NCH(n) / 2, c->c_arena); |
| 35742 | 2459 if (!s) |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2460 return NULL; |
| 35742 | 2461 for (i = 1; i < NCH(n); i += 2) { |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2462 name = NEW_IDENTIFIER(CHILD(n, i)); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2463 if (!name) |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2464 return NULL; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2465 asdl_seq_SET(s, i / 2, name); |
| 35742 | 2466 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2467 return Global(s, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2468 } |
| 2469 | |
| 2470 static stmt_ty | |
|
40965
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2471 ast_for_nonlocal_stmt(struct compiling *c, const node *n) |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2472 { |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2473 /* nonlocal_stmt: 'nonlocal' NAME (',' NAME)* */ |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2474 identifier name; |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2475 asdl_seq *s; |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2476 int i; |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2477 |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2478 REQ(n, nonlocal_stmt); |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2479 s = asdl_seq_new(NCH(n) / 2, c->c_arena); |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2480 if (!s) |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2481 return NULL; |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2482 for (i = 1; i < NCH(n); i += 2) { |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2483 name = NEW_IDENTIFIER(CHILD(n, i)); |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2484 if (!name) |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2485 return NULL; |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2486 asdl_seq_SET(s, i / 2, name); |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2487 } |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2488 return Nonlocal(s, LINENO(n), n->n_col_offset, c->c_arena); |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2489 } |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2490 |
|
30e5cb3a55ac
Provisional implementation of PEP 3104.
Jeremy Hylton <jeremy@alum.mit.edu>
parents:
40941
diff
changeset
|
2491 static stmt_ty |
| 35742 | 2492 ast_for_assert_stmt(struct compiling *c, const node *n) |
| 2493 { | |
| 2494 /* assert_stmt: 'assert' test [',' test] */ | |
| 2495 REQ(n, assert_stmt); | |
| 2496 if (NCH(n) == 2) { | |
| 2497 expr_ty expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2498 if (!expression) | |
| 2499 return NULL; | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2500 return Assert(expression, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2501 } |
| 2502 else if (NCH(n) == 4) { | |
| 2503 expr_ty expr1, expr2; | |
| 2504 | |
| 2505 expr1 = ast_for_expr(c, CHILD(n, 1)); | |
| 2506 if (!expr1) | |
| 2507 return NULL; | |
| 2508 expr2 = ast_for_expr(c, CHILD(n, 3)); | |
| 2509 if (!expr2) | |
| 2510 return NULL; | |
| 2511 | |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2512 return Assert(expr1, expr2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2513 } |
|
35870
f531c05cd240
Convert all internal errors from Exception to SystemError
Neal Norwitz <nnorwitz@gmail.com>
parents:
35868
diff
changeset
|
2514 PyErr_Format(PyExc_SystemError, |
| 35742 | 2515 "improper number of parts to 'assert' statement: %d", |
| 2516 NCH(n)); | |
| 2517 return NULL; | |
| 2518 } | |
| 2519 | |
| 2520 static asdl_seq * | |
| 2521 ast_for_suite(struct compiling *c, const node *n) | |
| 2522 { | |
| 2523 /* suite: simple_stmt | NEWLINE INDENT stmt+ DEDENT */ | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2524 asdl_seq *seq; |
| 35742 | 2525 stmt_ty s; |
| 2526 int i, total, num, end, pos = 0; | |
| 2527 node *ch; | |
| 2528 | |
| 2529 REQ(n, suite); | |
| 2530 | |
| 2531 total = num_stmts(n); | |
|
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diff
changeset
|
2532 seq = asdl_seq_new(total, c->c_arena); |
| 35742 | 2533 if (!seq) |
|
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|
2534 return NULL; |
| 35742 | 2535 if (TYPE(CHILD(n, 0)) == simple_stmt) { |
|
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|
2536 n = CHILD(n, 0); |
|
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|
2537 /* simple_stmt always ends with a NEWLINE, |
|
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Four months of trunk changes (including a few releases...)
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|
2538 and may have a trailing SEMI |
|
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Four months of trunk changes (including a few releases...)
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diff
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|
2539 */ |
|
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|
2540 end = NCH(n) - 1; |
|
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Four months of trunk changes (including a few releases...)
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diff
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|
2541 if (TYPE(CHILD(n, end - 1)) == SEMI) |
|
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Four months of trunk changes (including a few releases...)
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changeset
|
2542 end--; |
| 35742 | 2543 /* loop by 2 to skip semi-colons */ |
|
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|
2544 for (i = 0; i < end; i += 2) { |
|
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|
2545 ch = CHILD(n, i); |
|
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|
2546 s = ast_for_stmt(c, ch); |
|
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Four months of trunk changes (including a few releases...)
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diff
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|
2547 if (!s) |
|
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|
2548 return NULL; |
|
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changeset
|
2549 asdl_seq_SET(seq, pos++, s); |
|
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Four months of trunk changes (including a few releases...)
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|
2550 } |
| 35742 | 2551 } |
| 2552 else { | |
|
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|
2553 for (i = 2; i < (NCH(n) - 1); i++) { |
|
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Four months of trunk changes (including a few releases...)
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|
2554 ch = CHILD(n, i); |
|
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|
2555 REQ(ch, stmt); |
|
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|
2556 num = num_stmts(ch); |
|
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Four months of trunk changes (including a few releases...)
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|
2557 if (num == 1) { |
|
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|
2558 /* small_stmt or compound_stmt with only one child */ |
|
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|
2559 s = ast_for_stmt(c, ch); |
|
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|
2560 if (!s) |
|
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|
2561 return NULL; |
|
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|
2562 asdl_seq_SET(seq, pos++, s); |
|
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|
2563 } |
|
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|
2564 else { |
|
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|
2565 int j; |
|
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Four months of trunk changes (including a few releases...)
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|
2566 ch = CHILD(ch, 0); |
|
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Four months of trunk changes (including a few releases...)
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|
2567 REQ(ch, simple_stmt); |
|
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Four months of trunk changes (including a few releases...)
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|
2568 for (j = 0; j < NCH(ch); j += 2) { |
|
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Four months of trunk changes (including a few releases...)
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|
2569 /* statement terminates with a semi-colon ';' */ |
|
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Four months of trunk changes (including a few releases...)
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|
2570 if (NCH(CHILD(ch, j)) == 0) { |
|
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Four months of trunk changes (including a few releases...)
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changeset
|
2571 assert((j + 1) == NCH(ch)); |
|
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|
2572 break; |
|
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changeset
|
2573 } |
|
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changeset
|
2574 s = ast_for_stmt(c, CHILD(ch, j)); |
|
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|
2575 if (!s) |
|
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Four months of trunk changes (including a few releases...)
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|
2576 return NULL; |
|
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Four months of trunk changes (including a few releases...)
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|
2577 asdl_seq_SET(seq, pos++, s); |
|
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|
2578 } |
|
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changeset
|
2579 } |
|
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changeset
|
2580 } |
| 35742 | 2581 } |
| 2582 assert(pos == seq->size); | |
| 2583 return seq; | |
| 2584 } | |
| 2585 | |
| 2586 static stmt_ty | |
| 2587 ast_for_if_stmt(struct compiling *c, const node *n) | |
| 2588 { | |
| 2589 /* if_stmt: 'if' test ':' suite ('elif' test ':' suite)* | |
| 2590 ['else' ':' suite] | |
| 2591 */ | |
| 2592 char *s; | |
| 2593 | |
| 2594 REQ(n, if_stmt); | |
| 2595 | |
| 2596 if (NCH(n) == 4) { | |
| 2597 expr_ty expression; | |
| 2598 asdl_seq *suite_seq; | |
| 2599 | |
| 2600 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2601 if (!expression) | |
| 2602 return NULL; | |
| 2603 suite_seq = ast_for_suite(c, CHILD(n, 3)); | |
|
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Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
2604 if (!suite_seq) |
| 35742 | 2605 return NULL; |
| 2606 | |
|
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|
2607 return If(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, |
|
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|
2608 c->c_arena); |
| 35742 | 2609 } |
|
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Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
2610 |
| 35742 | 2611 s = STR(CHILD(n, 4)); |
| 2612 /* s[2], the third character in the string, will be | |
| 2613 's' for el_s_e, or | |
| 2614 'i' for el_i_f | |
| 2615 */ | |
| 2616 if (s[2] == 's') { | |
| 2617 expr_ty expression; | |
| 2618 asdl_seq *seq1, *seq2; | |
| 2619 | |
| 2620 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2621 if (!expression) | |
| 2622 return NULL; | |
| 2623 seq1 = ast_for_suite(c, CHILD(n, 3)); | |
|
36072
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Neal Norwitz <nnorwitz@gmail.com>
parents:
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diff
changeset
|
2624 if (!seq1) |
| 35742 | 2625 return NULL; |
| 2626 seq2 = ast_for_suite(c, CHILD(n, 6)); | |
|
36072
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Cleanup a bit and make things more consistent.
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parents:
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diff
changeset
|
2627 if (!seq2) |
| 35742 | 2628 return NULL; |
| 2629 | |
|
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|
2630 return If(expression, seq1, seq2, LINENO(n), n->n_col_offset, |
|
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|
2631 c->c_arena); |
| 35742 | 2632 } |
| 2633 else if (s[2] == 'i') { | |
|
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|
2634 int i, n_elif, has_else = 0; |
|
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|
2635 expr_ty expression; |
|
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|
2636 asdl_seq *suite_seq; |
|
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|
2637 asdl_seq *orelse = NULL; |
|
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|
2638 n_elif = NCH(n) - 4; |
| 35742 | 2639 /* must reference the child n_elif+1 since 'else' token is third, |
| 2640 not fourth, child from the end. */ | |
|
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|
2641 if (TYPE(CHILD(n, (n_elif + 1))) == NAME |
|
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|
2642 && STR(CHILD(n, (n_elif + 1)))[2] == 's') { |
|
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|
2643 has_else = 1; |
|
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|
2644 n_elif -= 3; |
|
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|
2645 } |
|
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|
2646 n_elif /= 4; |
| 35742 | 2647 |
|
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|
2648 if (has_else) { |
|
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|
2649 asdl_seq *suite_seq2; |
| 35742 | 2650 |
|
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|
2651 orelse = asdl_seq_new(1, c->c_arena); |
|
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|
2652 if (!orelse) |
|
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|
2653 return NULL; |
| 35742 | 2654 expression = ast_for_expr(c, CHILD(n, NCH(n) - 6)); |
|
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diff
changeset
|
2655 if (!expression) |
| 35742 | 2656 return NULL; |
|
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|
2657 suite_seq = ast_for_suite(c, CHILD(n, NCH(n) - 4)); |
|
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changeset
|
2658 if (!suite_seq) |
|
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changeset
|
2659 return NULL; |
|
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|
2660 suite_seq2 = ast_for_suite(c, CHILD(n, NCH(n) - 1)); |
|
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|
2661 if (!suite_seq2) |
| 35742 | 2662 return NULL; |
| 2663 | |
|
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|
2664 asdl_seq_SET(orelse, 0, |
|
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changeset
|
2665 If(expression, suite_seq, suite_seq2, |
|
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|
2666 LINENO(CHILD(n, NCH(n) - 6)), |
|
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|
2667 CHILD(n, NCH(n) - 6)->n_col_offset, |
|
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|
2668 c->c_arena)); |
|
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|
2669 /* the just-created orelse handled the last elif */ |
|
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|
2670 n_elif--; |
|
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|
2671 } |
| 35742 | 2672 |
|
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|
2673 for (i = 0; i < n_elif; i++) { |
|
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changeset
|
2674 int off = 5 + (n_elif - i - 1) * 4; |
|
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|
2675 asdl_seq *newobj = asdl_seq_new(1, c->c_arena); |
|
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|
2676 if (!newobj) |
|
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changeset
|
2677 return NULL; |
| 35742 | 2678 expression = ast_for_expr(c, CHILD(n, off)); |
|
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changeset
|
2679 if (!expression) |
| 35742 | 2680 return NULL; |
| 2681 suite_seq = ast_for_suite(c, CHILD(n, off + 2)); | |
|
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de16a85c3b4c
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changeset
|
2682 if (!suite_seq) |
| 35742 | 2683 return NULL; |
| 2684 | |
|
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|
2685 asdl_seq_SET(newobj, 0, |
|
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|
2686 If(expression, suite_seq, orelse, |
|
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|
2687 LINENO(CHILD(n, off)), |
|
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changeset
|
2688 CHILD(n, off)->n_col_offset, c->c_arena)); |
|
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|
2689 orelse = newobj; |
|
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|
2690 } |
|
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|
2691 expression = ast_for_expr(c, CHILD(n, 1)); |
|
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|
2692 if (!expression) |
|
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|
2693 return NULL; |
|
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|
2694 suite_seq = ast_for_suite(c, CHILD(n, 3)); |
|
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|
2695 if (!suite_seq) |
|
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|
2696 return NULL; |
|
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|
2697 return If(expression, suite_seq, orelse, |
|
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|
2698 LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2699 } |
|
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|
2700 |
|
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|
2701 PyErr_Format(PyExc_SystemError, |
|
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|
2702 "unexpected token in 'if' statement: %s", s); |
|
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|
2703 return NULL; |
| 35742 | 2704 } |
| 2705 | |
| 2706 static stmt_ty | |
| 2707 ast_for_while_stmt(struct compiling *c, const node *n) | |
| 2708 { | |
| 2709 /* while_stmt: 'while' test ':' suite ['else' ':' suite] */ | |
| 2710 REQ(n, while_stmt); | |
| 2711 | |
| 2712 if (NCH(n) == 4) { | |
| 2713 expr_ty expression; | |
| 2714 asdl_seq *suite_seq; | |
| 2715 | |
| 2716 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2717 if (!expression) | |
| 2718 return NULL; | |
| 2719 suite_seq = ast_for_suite(c, CHILD(n, 3)); | |
|
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|
2720 if (!suite_seq) |
| 35742 | 2721 return NULL; |
|
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|
2722 return While(expression, suite_seq, NULL, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2723 } |
| 2724 else if (NCH(n) == 7) { | |
| 2725 expr_ty expression; | |
| 2726 asdl_seq *seq1, *seq2; | |
| 2727 | |
| 2728 expression = ast_for_expr(c, CHILD(n, 1)); | |
| 2729 if (!expression) | |
| 2730 return NULL; | |
| 2731 seq1 = ast_for_suite(c, CHILD(n, 3)); | |
|
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|
2732 if (!seq1) |
| 35742 | 2733 return NULL; |
| 2734 seq2 = ast_for_suite(c, CHILD(n, 6)); | |
|
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|
2735 if (!seq2) |
| 35742 | 2736 return NULL; |
| 2737 | |
|
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2738 return While(expression, seq1, seq2, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2739 } |
|
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|
2740 |
|
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|
2741 PyErr_Format(PyExc_SystemError, |
|
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|
2742 "wrong number of tokens for 'while' statement: %d", |
|
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|
2743 NCH(n)); |
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|
2744 return NULL; |
| 35742 | 2745 } |
| 2746 | |
| 2747 static stmt_ty | |
| 2748 ast_for_for_stmt(struct compiling *c, const node *n) | |
| 2749 { | |
|
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|
2750 asdl_seq *_target, *seq = NULL, *suite_seq; |
| 35742 | 2751 expr_ty expression; |
| 2752 expr_ty target; | |
|
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|
2753 const node *node_target; |
| 35742 | 2754 /* for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] */ |
| 2755 REQ(n, for_stmt); | |
| 2756 | |
| 2757 if (NCH(n) == 9) { | |
|
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2758 seq = ast_for_suite(c, CHILD(n, 8)); |
| 35742 | 2759 if (!seq) |
| 2760 return NULL; | |
| 2761 } | |
| 2762 | |
|
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|
2763 node_target = CHILD(n, 1); |
|
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|
2764 _target = ast_for_exprlist(c, node_target, Store); |
|
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|
2765 if (!_target) |
| 35742 | 2766 return NULL; |
|
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|
2767 /* Check the # of children rather than the length of _target, since |
|
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|
2768 for x, in ... has 1 element in _target, but still requires a Tuple. */ |
|
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|
2769 if (NCH(node_target) == 1) |
|
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|
2770 target = (expr_ty)asdl_seq_GET(_target, 0); |
| 35742 | 2771 else |
|
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|
2772 target = Tuple(_target, Store, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2773 |
|
35798
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Write a separate ast_for_testlist_gexp() function instead of overloading
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diff
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|
2774 expression = ast_for_testlist(c, CHILD(n, 3)); |
|
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|
2775 if (!expression) |
| 35742 | 2776 return NULL; |
| 2777 suite_seq = ast_for_suite(c, CHILD(n, 5)); | |
|
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|
2778 if (!suite_seq) |
| 35742 | 2779 return NULL; |
| 2780 | |
|
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|
2781 return For(target, expression, suite_seq, seq, LINENO(n), n->n_col_offset, |
|
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changeset
|
2782 c->c_arena); |
| 35742 | 2783 } |
| 2784 | |
| 2785 static excepthandler_ty | |
| 2786 ast_for_except_clause(struct compiling *c, const node *exc, node *body) | |
| 2787 { | |
|
41824
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|
2788 /* except_clause: 'except' [test ['as' test]] */ |
| 35742 | 2789 REQ(exc, except_clause); |
| 2790 REQ(body, suite); | |
| 2791 | |
| 2792 if (NCH(exc) == 1) { | |
| 2793 asdl_seq *suite_seq = ast_for_suite(c, body); | |
| 2794 if (!suite_seq) | |
| 2795 return NULL; | |
| 2796 | |
|
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|
2797 return ExceptHandler(NULL, NULL, suite_seq, LINENO(exc), |
|
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|
2798 exc->n_col_offset, c->c_arena); |
| 35742 | 2799 } |
| 2800 else if (NCH(exc) == 2) { | |
| 2801 expr_ty expression; | |
| 2802 asdl_seq *suite_seq; | |
| 2803 | |
| 2804 expression = ast_for_expr(c, CHILD(exc, 1)); | |
| 2805 if (!expression) | |
| 2806 return NULL; | |
| 2807 suite_seq = ast_for_suite(c, body); | |
|
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|
2808 if (!suite_seq) |
| 35742 | 2809 return NULL; |
| 2810 | |
|
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|
2811 return ExceptHandler(expression, NULL, suite_seq, LINENO(exc), |
|
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|
2812 exc->n_col_offset, c->c_arena); |
| 35742 | 2813 } |
| 2814 else if (NCH(exc) == 4) { | |
| 2815 asdl_seq *suite_seq; | |
| 2816 expr_ty expression; | |
|
40588
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Guido van Rossum <guido@python.org>
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|
2817 identifier e = NEW_IDENTIFIER(CHILD(exc, 3)); |
|
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|
2818 if (!e) |
| 35742 | 2819 return NULL; |
|
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|
2820 expression = ast_for_expr(c, CHILD(exc, 1)); |
|
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|
2821 if (!expression) |
|
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|
2822 return NULL; |
| 35742 | 2823 suite_seq = ast_for_suite(c, body); |
|
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|
2824 if (!suite_seq) |
| 35742 | 2825 return NULL; |
| 2826 | |
|
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|
2827 return ExceptHandler(expression, e, suite_seq, LINENO(exc), |
|
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Thomas Wouters <thomas@python.org>
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|
2828 exc->n_col_offset, c->c_arena); |
| 35742 | 2829 } |
|
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|
2830 |
|
de16a85c3b4c
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changeset
|
2831 PyErr_Format(PyExc_SystemError, |
|
de16a85c3b4c
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|
2832 "wrong number of children for 'except' clause: %d", |
|
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|
2833 NCH(exc)); |
|
de16a85c3b4c
Cleanup a bit and make things more consistent.
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diff
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|
2834 return NULL; |
| 35742 | 2835 } |
| 2836 | |
| 2837 static stmt_ty | |
| 2838 ast_for_try_stmt(struct compiling *c, const node *n) | |
| 2839 { | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2840 const int nch = NCH(n); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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diff
changeset
|
2841 int n_except = (nch - 3)/3; |
|
719ba02d2e2c
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parents:
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diff
changeset
|
2842 asdl_seq *body, *orelse = NULL, *finally = NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2843 |
| 35742 | 2844 REQ(n, try_stmt); |
| 2845 | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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diff
changeset
|
2846 body = ast_for_suite(c, CHILD(n, 2)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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36065
diff
changeset
|
2847 if (body == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2848 return NULL; |
|
719ba02d2e2c
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diff
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|
2849 |
|
719ba02d2e2c
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parents:
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diff
changeset
|
2850 if (TYPE(CHILD(n, nch - 3)) == NAME) { |
|
719ba02d2e2c
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diff
changeset
|
2851 if (strcmp(STR(CHILD(n, nch - 3)), "finally") == 0) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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diff
changeset
|
2852 if (nch >= 9 && TYPE(CHILD(n, nch - 6)) == NAME) { |
|
719ba02d2e2c
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diff
changeset
|
2853 /* we can assume it's an "else", |
|
719ba02d2e2c
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diff
changeset
|
2854 because nch >= 9 for try-else-finally and |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
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diff
changeset
|
2855 it would otherwise have a type of except_clause */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2856 orelse = ast_for_suite(c, CHILD(n, nch - 4)); |
|
719ba02d2e2c
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diff
changeset
|
2857 if (orelse == NULL) |
|
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parents:
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diff
changeset
|
2858 return NULL; |
|
719ba02d2e2c
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diff
changeset
|
2859 n_except--; |
|
719ba02d2e2c
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parents:
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diff
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|
2860 } |
|
719ba02d2e2c
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diff
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|
2861 |
|
719ba02d2e2c
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diff
changeset
|
2862 finally = ast_for_suite(c, CHILD(n, nch - 1)); |
|
719ba02d2e2c
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diff
changeset
|
2863 if (finally == NULL) |
|
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diff
changeset
|
2864 return NULL; |
|
719ba02d2e2c
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parents:
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diff
changeset
|
2865 n_except--; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2866 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2867 else { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2868 /* we can assume it's an "else", |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2869 otherwise it would have a type of except_clause */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
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parents:
36065
diff
changeset
|
2870 orelse = ast_for_suite(c, CHILD(n, nch - 1)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2871 if (orelse == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2872 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2873 n_except--; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2874 } |
| 35742 | 2875 } |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2876 else if (TYPE(CHILD(n, nch - 3)) != except_clause) { |
|
35867
f4842f42700b
remove useless debug print helper. fix a couple of exceptions
Neal Norwitz <nnorwitz@gmail.com>
parents:
35799
diff
changeset
|
2877 ast_error(n, "malformed 'try' statement"); |
| 35742 | 2878 return NULL; |
| 2879 } | |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2880 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2881 if (n_except > 0) { |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2882 int i; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2883 stmt_ty except_st; |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2884 /* process except statements to create a try ... except */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2885 asdl_seq *handlers = asdl_seq_new(n_except, c->c_arena); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2886 if (handlers == NULL) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2887 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2888 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2889 for (i = 0; i < n_except; i++) { |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2890 excepthandler_ty e = ast_for_except_clause(c, CHILD(n, 3 + i * 3), |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2891 CHILD(n, 5 + i * 3)); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2892 if (!e) |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2893 return NULL; |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2894 asdl_seq_SET(handlers, i, e); |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2895 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2896 |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2897 except_st = TryExcept(body, handlers, orelse, LINENO(n), |
|
37879
f731859e9b3b
Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents:
36877
diff
changeset
|
2898 n->n_col_offset, c->c_arena); |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2899 if (!finally) |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2900 return except_st; |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2901 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2902 /* if a 'finally' is present too, we nest the TryExcept within a |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2903 TryFinally to emulate try ... except ... finally */ |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2904 body = asdl_seq_new(1, c->c_arena); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2905 if (body == NULL) |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2906 return NULL; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2907 asdl_seq_SET(body, 0, except_st); |
|
36066
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2908 } |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2909 |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2910 /* must be a try ... finally (except clauses are in body, if any exist) */ |
|
719ba02d2e2c
SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Neal Norwitz <nnorwitz@gmail.com>
parents:
36065
diff
changeset
|
2911 assert(finally != NULL); |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2912 return TryFinally(body, finally, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2913 } |
| 2914 | |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2915 static expr_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2916 ast_for_with_var(struct compiling *c, const node *n) |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2917 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2918 REQ(n, with_var); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2919 return ast_for_expr(c, CHILD(n, 1)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2920 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2921 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2922 /* with_stmt: 'with' test [ with_var ] ':' suite */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2923 static stmt_ty |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2924 ast_for_with_stmt(struct compiling *c, const node *n) |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2925 { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2926 expr_ty context_expr, optional_vars = NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2927 int suite_index = 3; /* skip 'with', test, and ':' */ |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2928 asdl_seq *suite_seq; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2929 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2930 assert(TYPE(n) == with_stmt); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2931 context_expr = ast_for_expr(c, CHILD(n, 1)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2932 if (TYPE(CHILD(n, 2)) == with_var) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2933 optional_vars = ast_for_with_var(c, CHILD(n, 2)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2934 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2935 if (!optional_vars) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2936 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2937 } |
|
46664
031dfe455585
Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents:
46306
diff
changeset
|
2938 if (!set_context(c, optional_vars, Store, n)) { |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2939 return NULL; |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2940 } |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2941 suite_index = 4; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2942 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2943 |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2944 suite_seq = ast_for_suite(c, CHILD(n, suite_index)); |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2945 if (!suite_seq) { |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2946 return NULL; |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2947 } |
|
36786
57322cb2ca11
Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
parents:
36780
diff
changeset
|
2948 return With(context_expr, optional_vars, suite_seq, LINENO(n), |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2949 n->n_col_offset, c->c_arena); |
|
36695
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2950 } |
|
b6d2f6fd3e11
PEP 343 -- the with-statement.
Guido van Rossum <guido@python.org>
parents:
36686
diff
changeset
|
2951 |
| 35742 | 2952 static stmt_ty |
|
41824
24b60622b944
Merged revisions 55407-55513 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41717
diff
changeset
|
2953 ast_for_classdef(struct compiling *c, const node *n, asdl_seq *decorator_seq) |
| 35742 | 2954 { |
|
41226
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2955 /* classdef: 'class' NAME ['(' arglist ')'] ':' suite */ |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2956 asdl_seq *s; |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2957 expr_ty call, dummy; |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2958 |
| 35742 | 2959 REQ(n, classdef); |
| 2960 | |
|
41226
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2961 if (NCH(n) == 4) { /* class NAME ':' suite */ |
| 35742 | 2962 s = ast_for_suite(c, CHILD(n, 3)); |
| 2963 if (!s) | |
| 2964 return NULL; | |
|
41226
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2965 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, NULL, NULL, NULL, s, |
|
41824
24b60622b944
Merged revisions 55407-55513 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41717
diff
changeset
|
2966 decorator_seq, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2967 } |
|
41226
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2968 |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2969 if (TYPE(CHILD(n, 3)) == RPAR) { /* class NAME '(' ')' ':' suite */ |
|
40450
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2970 s = ast_for_suite(c, CHILD(n,5)); |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2971 if (!s) |
|
cc992d75d5b3
Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents:
40215
diff
changeset
|
2972 return NULL; |
|
41226
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2973 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), NULL, NULL, NULL, NULL, s, |
|
41824
24b60622b944
Merged revisions 55407-55513 via svnmerge from
Guido van Rossum <guido@python.org>
parents:
41717
diff
changeset
|
2974 decorator_seq, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2975 } |
| 2976 | |
|
41226
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2977 /* class NAME '(' arglist ')' ':' suite */ |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2978 /* build up a fake Call node so we can extract its pieces */ |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2979 dummy = Name(NEW_IDENTIFIER(CHILD(n, 1)), Load, LINENO(n), n->n_col_offset, c->c_arena); |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2980 call = ast_for_call(c, CHILD(n, 3), dummy); |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2981 if (!call) |
| 35742 | 2982 return NULL; |
| 2983 s = ast_for_suite(c, CHILD(n, 6)); | |
|
36072
de16a85c3b4c
Cleanup a bit and make things more consistent.
Neal Norwitz <nnorwitz@gmail.com>
parents:
36066
diff
changeset
|
2984 if (!s) |
| 35742 | 2985 return NULL; |
|
41226
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
Guido van Rossum <guido@python.org>
parents:
40965
diff
changeset
|
2986 |
|
19f7ff443718
Implement PEP 3115 -- new metaclass syntax and semantics.
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|
2987 return ClassDef(NEW_IDENTIFIER(CHILD(n, 1)), |
|
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|
2988 call->v.Call.args, call->v.Call.keywords, |
|
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|
2989 call->v.Call.starargs, call->v.Call.kwargs, s, |
|
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|
2990 decorator_seq, LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 2991 } |
| 2992 | |
| 2993 static stmt_ty | |
| 2994 ast_for_stmt(struct compiling *c, const node *n) | |
| 2995 { | |
| 2996 if (TYPE(n) == stmt) { | |
|
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|
2997 assert(NCH(n) == 1); |
|
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2998 n = CHILD(n, 0); |
| 35742 | 2999 } |
| 3000 if (TYPE(n) == simple_stmt) { | |
|
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|
3001 assert(num_stmts(n) == 1); |
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|
3002 n = CHILD(n, 0); |
| 35742 | 3003 } |
| 3004 if (TYPE(n) == small_stmt) { | |
|
40529
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|
3005 REQ(n, small_stmt); |
|
54cd47788811
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|
3006 n = CHILD(n, 0); |
|
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|
3007 /* small_stmt: expr_stmt | del_stmt | pass_stmt | flow_stmt |
|
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|
3008 | import_stmt | global_stmt | nonlocal_stmt | assert_stmt |
|
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3009 */ |
|
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|
3010 switch (TYPE(n)) { |
| 35742 | 3011 case expr_stmt: |
| 3012 return ast_for_expr_stmt(c, n); | |
| 3013 case del_stmt: | |
| 3014 return ast_for_del_stmt(c, n); | |
| 3015 case pass_stmt: | |
|
36786
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Patch #1440601: Add col_offset attribute to AST nodes.
Martin v. Löwis <martin@v.loewis.de>
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|
3016 return Pass(LINENO(n), n->n_col_offset, c->c_arena); |
| 35742 | 3017 case flow_stmt: |
| 3018 return ast_for_flow_stmt(c, n); | |
| 3019 case import_stmt: | |
| 3020 return ast_for_import_stmt(c, n); | |
| 3021 case global_stmt: | |
| 3022 return ast_for_global_stmt(c, n); | |
|
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|
3023 case nonlocal_stmt: |
|
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|
3024 return ast_for_nonlocal_stmt(c, n); |
| 35742 | 3025 case assert_stmt: |
| 3026 return ast_for_assert_stmt(c, n); | |
| 3027 default: | |
|
35870
f531c05cd240
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Neal Norwitz <nnorwitz@gmail.com>
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|
3028 PyErr_Format(PyExc_SystemError, |
| 35742 | 3029 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
| 3030 TYPE(n), NCH(n)); | |
| 3031 return NULL; | |
| 3032 } | |
| 3033 } | |
| 3034 else { | |
| 3035 /* compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | |
|
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|
3036 | funcdef | classdef | decorated |
|
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3037 */ |
|
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|
3038 node *ch = CHILD(n, 0); |
|
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3039 REQ(n, compound_stmt); |
|
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|
3040 switch (TYPE(ch)) { |
| 35742 | 3041 case if_stmt: |
| 3042 return ast_for_if_stmt(c, ch); | |
| 3043 case while_stmt: | |
| 3044 return ast_for_while_stmt(c, ch); | |
| 3045 case for_stmt: | |
| 3046 return ast_for_for_stmt(c, ch); | |
| 3047 case try_stmt: | |
| 3048 return ast_for_try_stmt(c, ch); | |
|
36695
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|
3049 case with_stmt: |
|
b6d2f6fd3e11
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|
3050 return ast_for_with_stmt(c, ch); |
| 35742 | 3051 case funcdef: |
|
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3052 return ast_for_funcdef(c, ch, NULL); |
| 35742 | 3053 case classdef: |
|
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|
3054 return ast_for_classdef(c, ch, NULL); |
|
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|
3055 case decorated: |
|
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|
3056 return ast_for_decorated(c, ch); |
| 35742 | 3057 default: |
|
35870
f531c05cd240
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Neal Norwitz <nnorwitz@gmail.com>
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|
3058 PyErr_Format(PyExc_SystemError, |
| 35742 | 3059 "unhandled small_stmt: TYPE=%d NCH=%d\n", |
| 3060 TYPE(n), NCH(n)); | |
| 3061 return NULL; | |
|
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|
3062 } |
| 35742 | 3063 } |
| 3064 } | |
| 3065 | |
| 3066 static PyObject * | |
|
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|
3067 parsenumber(struct compiling *c, const char *s) |
| 35742 | 3068 { |
|
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3069 const char *end; |
|
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|
3070 long x; |
|
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|
3071 double dx; |
| 35742 | 3072 #ifndef WITHOUT_COMPLEX |
|
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|
3073 Py_complex compl; |
|
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3074 int imflag; |
| 35742 | 3075 #endif |
| 3076 | |
|
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|
3077 errno = 0; |
|
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3078 end = s + strlen(s) - 1; |
| 35742 | 3079 #ifndef WITHOUT_COMPLEX |
|
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3080 imflag = *end == 'j' || *end == 'J'; |
| 35742 | 3081 #endif |
|
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|
3082 if (s[0] == '0') { |
|
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|
3083 x = (long) PyOS_strtoul((char *)s, (char **)&end, 0); |
|
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|
3084 if (x < 0 && errno == 0) { |
|
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|
3085 return PyLong_FromString((char *)s, |
|
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|
3086 (char **)0, |
|
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|
3087 0); |
|
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|
3088 } |
|
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|
3089 } |
|
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|
3090 else |
|
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|
3091 x = PyOS_strtol((char *)s, (char **)&end, 0); |
|
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|
3092 if (*end == '\0') { |
|
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|
3093 if (errno != 0) |
|
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|
3094 return PyLong_FromString((char *)s, (char **)0, 0); |
|
44099
f324631462a2
Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents:
44025
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|
3095 return PyLong_FromLong(x); |
|
41554
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|
3096 } |
|
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|
3097 /* XXX Huge floats may silently fail */ |
| 35742 | 3098 #ifndef WITHOUT_COMPLEX |
|
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|
3099 if (imflag) { |
|
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|
3100 compl.real = 0.; |
|
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|
3101 PyFPE_START_PROTECT("atof", return 0) |
|
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|
3102 compl.imag = PyOS_ascii_atof(s); |
|
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|
3103 PyFPE_END_PROTECT(c) |
|
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|
3104 return PyComplex_FromCComplex(compl); |
|
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3105 } |
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|
3106 else |
| 35742 | 3107 #endif |
|
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3108 { |
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|
3109 PyFPE_START_PROTECT("atof", return 0) |
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3110 dx = PyOS_ascii_atof(s); |
|
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|
3111 PyFPE_END_PROTECT(dx) |
|
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|
3112 return PyFloat_FromDouble(dx); |
|
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|
3113 } |
| 35742 | 3114 } |
| 3115 | |
| 3116 static PyObject * | |
|
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|
3117 decode_utf8(struct compiling *c, const char **sPtr, const char *end, char* encoding) |
| 35742 | 3118 { |
|
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3119 PyObject *u, *v; |
|
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|
3120 char *s, *t; |
|
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3121 t = s = (char *)*sPtr; |
|
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|
3122 /* while (s < end && *s != '\\') s++; */ /* inefficient for u".." */ |
|
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|
3123 while (s < end && (*s & 0x80)) s++; |
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|
3124 *sPtr = s; |
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|
3125 u = PyUnicode_DecodeUTF8(t, s - t, NULL); |
|
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|
3126 if (u == NULL) |
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3127 return NULL; |
|
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3128 v = PyUnicode_AsEncodedString(u, encoding, NULL); |
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3129 Py_DECREF(u); |
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3130 return v; |
| 35742 | 3131 } |
| 3132 | |
| 3133 static PyObject * | |
|
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3134 decode_unicode(struct compiling *c, const char *s, size_t len, int rawmode, const char *encoding) |
| 35742 | 3135 { |
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3136 PyObject *v, *u; |
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3137 char *buf; |
|
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3138 char *p; |
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3139 const char *end; |
|
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3140 |
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3141 if (encoding == NULL) { |
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3142 buf = (char *)s; |
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3143 u = NULL; |
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3144 } else if (strcmp(encoding, "iso-8859-1") == 0) { |
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3145 buf = (char *)s; |
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3146 u = NULL; |
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3147 } else { |
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3148 /* "\XX" may become "\u005c\uHHLL" (12 bytes) */ |
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3149 u = PyString_FromStringAndSize((char *)NULL, len * 4); |
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3150 if (u == NULL) |
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3151 return NULL; |
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3152 p = buf = PyString_AsString(u); |
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3153 end = s + len; |
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3154 while (s < end) { |
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3155 if (*s == '\\') { |
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3156 *p++ = *s++; |
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3157 if (*s & 0x80) { |
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3158 strcpy(p, "u005c"); |
|
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3159 p += 5; |
|
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3160 } |
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3161 } |
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3162 if (*s & 0x80) { /* XXX inefficient */ |
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3163 PyObject *w; |
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3164 char *r; |
|
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3165 Py_ssize_t rn, i; |
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3166 w = decode_utf8(c, &s, end, "utf-16-be"); |
|
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3167 if (w == NULL) { |
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|
3168 Py_DECREF(u); |
|
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3169 return NULL; |
|
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3170 } |
|
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|
3171 r = PyString_AS_STRING(w); |
|
44351
86a2679dca46
#1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT.
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|
3172 rn = Py_SIZE(w); |
|
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3173 assert(rn % 2 == 0); |
|
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3174 for (i = 0; i < rn; i += 2) { |
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3175 sprintf(p, "\\u%02x%02x", |
|
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3176 r[i + 0] & 0xFF, |
|
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|
3177 r[i + 1] & 0xFF); |
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3178 p += 6; |
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3179 } |
|
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3180 Py_DECREF(w); |
|
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3181 } else { |
|
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3182 *p++ = *s++; |
|
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|
3183 } |
|
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3184 } |
|
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3185 len = p - buf; |
|
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|
3186 s = buf; |
|
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|
3187 } |
|
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|
3188 if (rawmode) |
|
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|
3189 v = PyUnicode_DecodeRawUnicodeEscape(s, len, NULL); |
|
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3190 else |
|
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|
3191 v = PyUnicode_DecodeUnicodeEscape(s, len, NULL); |
|
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|
3192 Py_XDECREF(u); |
|
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|
3193 return v; |
| 35742 | 3194 } |
| 3195 | |
| 3196 /* s is a Python string literal, including the bracketing quote characters, | |
|
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|
3197 * and r &/or b prefixes (if any), and embedded escape sequences (if any). |
| 35742 | 3198 * parsestr parses it, and returns the decoded Python string object. |
| 3199 */ | |
| 3200 static PyObject * | |
|
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|
3201 parsestr(struct compiling *c, const node *n, int *bytesmode) |
| 35742 | 3202 { |
|
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|
3203 size_t len; |
|
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|
3204 const char *s = STR(n); |
|
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|
3205 int quote = Py_CHARMASK(*s); |
|
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3206 int rawmode = 0; |
|
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|
3207 int need_encoding; |
|
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|
3208 if (isalpha(quote)) { |
|
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|
3209 if (quote == 'b' || quote == 'B') { |
|
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|
3210 quote = *++s; |
|
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|
3211 *bytesmode = 1; |
|
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3212 } |
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3213 if (quote == 'r' || quote == 'R') { |
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|
3214 quote = *++s; |
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|
3215 rawmode = 1; |
|
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|
3216 } |
|
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3217 } |
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|
3218 if (quote != '\'' && quote != '\"') { |
|
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|
3219 PyErr_BadInternalCall(); |
|
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|
3220 return NULL; |
|
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|
3221 } |
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|
3222 s++; |
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3223 len = strlen(s); |
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3224 if (len > INT_MAX) { |
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|
3225 PyErr_SetString(PyExc_OverflowError, |
|
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|
3226 "string to parse is too long"); |
|
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|
3227 return NULL; |
|
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3228 } |
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|
3229 if (s[--len] != quote) { |
|
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3230 PyErr_BadInternalCall(); |
|
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|
3231 return NULL; |
|
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3232 } |
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3233 if (len >= 4 && s[0] == quote && s[1] == quote) { |
|
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3234 s += 2; |
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3235 len -= 2; |
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3236 if (s[--len] != quote || s[--len] != quote) { |
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|
3237 PyErr_BadInternalCall(); |
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3238 return NULL; |
| 40894 | 3239 } |
|
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|
3240 } |
|
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|
3241 if (!*bytesmode && !rawmode) { |
|
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3242 return decode_unicode(c, s, len, rawmode, c->c_encoding); |
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3243 } |
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3244 if (*bytesmode) { |
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3245 /* Disallow non-ascii characters (but not escapes) */ |
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3246 const char *c; |
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3247 for (c = s; *c; c++) { |
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3248 if (Py_CHARMASK(*c) >= 0x80) { |
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3249 ast_error(n, "bytes can only contain ASCII " |
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3250 "literal characters."); |
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3251 return NULL; |
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3252 } |
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3253 } |
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3254 } |
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3255 need_encoding = (!*bytesmode && c->c_encoding != NULL && |
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3256 strcmp(c->c_encoding, "utf-8") != 0 && |
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3257 strcmp(c->c_encoding, "iso-8859-1") != 0); |
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3258 if (rawmode || strchr(s, '\\') == NULL) { |
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3259 if (need_encoding) { |
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3260 PyObject *v, *u = PyUnicode_DecodeUTF8(s, len, NULL); |
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Minimal change that disables (AFAICT) the interpolation of \u and \U inside
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3261 if (u == NULL || !*bytesmode) |
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3262 return u; |
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3263 v = PyUnicode_AsEncodedString(u, c->c_encoding, NULL); |
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3264 Py_DECREF(u); |
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3265 return v; |
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3266 } else if (*bytesmode) { |
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3267 return PyString_FromStringAndSize(s, len); |
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3268 } else if (strcmp(c->c_encoding, "utf-8") == 0) { |
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3269 return PyUnicode_FromStringAndSize(s, len); |
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3270 } else { |
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3271 return PyUnicode_DecodeLatin1(s, len, NULL); |
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3272 } |
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3273 } |
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41698
7d49038e99c9
Remove support for u"..." literals.
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3274 return PyString_DecodeEscape(s, len, NULL, 1, |
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3275 need_encoding ? c->c_encoding : NULL); |
| 35742 | 3276 } |
| 3277 | |
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3278 /* Build a Python string object out of a STRING+ atom. This takes care of |
| 35742 | 3279 * compile-time literal catenation, calling parsestr() on each piece, and |
| 3280 * pasting the intermediate results together. | |
| 3281 */ | |
| 3282 static PyObject * | |
| 40894 | 3283 parsestrplus(struct compiling *c, const node *n, int *bytesmode) |
| 35742 | 3284 { |
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3285 PyObject *v; |
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3286 int i; |
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3287 REQ(CHILD(n, 0), STRING); |
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3288 v = parsestr(c, CHILD(n, 0), bytesmode); |
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3289 if (v != NULL) { |
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3290 /* String literal concatenation */ |
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3291 for (i = 1; i < NCH(n); i++) { |
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3292 PyObject *s; |
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3293 int subbm = 0; |
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3294 s = parsestr(c, CHILD(n, i), &subbm); |
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3295 if (s == NULL) |
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3296 goto onError; |
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3297 if (*bytesmode != subbm) { |
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3298 ast_error(n, "cannot mix bytes and nonbytes literals"); |
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3299 goto onError; |
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3300 } |
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3301 if (PyString_Check(v) && PyString_Check(s)) { |
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3302 PyString_ConcatAndDel(&v, s); |
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3303 if (v == NULL) |
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3304 goto onError; |
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3305 } |
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3306 else { |
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3307 PyObject *temp = PyUnicode_Concat(v, s); |
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3308 Py_DECREF(s); |
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3309 Py_DECREF(v); |
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3310 v = temp; |
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3311 if (v == NULL) |
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3312 goto onError; |
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3313 } |
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3314 } |
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3315 } |
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3316 return v; |
| 35742 | 3317 |
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3318 onError: |
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3319 Py_XDECREF(v); |
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3320 return NULL; |
| 35742 | 3321 } |