Commit Graph

188 Commits

Author SHA1 Message Date
Jeremy Hylton a829313d7b Remove asdl_seq_APPEND() and simplify asdl seq implementation.
Clarify intended use of set_context() and check errors at all call sites.
2006-02-28 17:58:27 +00:00
Thomas Wouters f7f438ba3b SF patch #1438387, PEP 328: relative and absolute imports.
- IMPORT_NAME takes an extra argument from the stack: the relativeness of
   the import. Only passed to __import__ when it's not -1.

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

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

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

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

Includes tests for regular imports and importhooks, parser changes and a
NEWS item, but no compiler-package changes or documentation changes.
2006-02-28 16:09:29 +00:00
Guido van Rossum c2e20744b2 PEP 343 -- the with-statement.
This was started by Mike Bland and completed by Guido
(with help from Neal).

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

There's a small amount of code cleanup and refactoring
in ast.c, compile.c and ceval.c (I fixed the lltrace
behavior when EXT_POP is used -- however I had to make
lltrace a static global).
2006-02-27 22:32:47 +00:00
Jeremy Hylton c7d37264bb Fix parsing of subscriptlist.
(Armin's SF bug report).
d = {}
d[1,] = 1
Now handled correctly
2006-02-27 17:29:29 +00:00
Thomas Wouters 8622e93eab And some more cleanup. 2006-02-27 17:14:45 +00:00
Thomas Wouters 106203c6e0 Clean up from-import handling. 2006-02-27 17:05:19 +00:00
Jeremy Hylton 9ebfbf0a43 Simplify ast_for_trailer() in anticipation of more changes. 2006-02-27 16:50:35 +00:00
Thomas Wouters aa8b6c5855 Fix old not-reading-pep-308-right artifact. 2006-02-27 16:46:22 +00:00
Thomas Wouters fa443cda87 Fix assertion errors in debug build, brought on by PEP 308 patch. 2006-02-27 15:43:57 +00:00
Thomas Wouters dca3b9c797 PEP 308 implementation, including minor refdocs and some testcases. It
breaks the parser module, because it adds the if/else construct as well as
two new grammar rules for backward compatibility. If no one else fixes
parsermodule, I guess I'll go ahead and fix it later this week.

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

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

changes into

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

Since there's no way the former version can be useful, it's probably a
bugfix ;)
2006-02-27 00:24:13 +00:00
Neal Norwitz 96e48d4698 Use C-style comment 2006-02-05 02:07:19 +00:00
Jeremy Hylton c960f26044 Improved handling of syntax errors.
Expand set of errors caught in set_context().  Some new errors, some
old error messages changed for consistency.

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

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

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

Add doctest cases for SyntaxErrors raised by ast.c.
2006-01-27 15:18:39 +00:00
Tim Peters e93e64fb1a Repair bizarre indentation created by VC 7.1. 2006-01-08 02:28:41 +00:00
Tim Peters 5db42c4c50 alias_for_import_name(): Dueling compiler warnings ;-)
Squash new warnings from VC 7.1 about mixing signed and
unsigned types in comparisons.  I can see why `len` was
changed to size_t here, but don't see why `i` was also
changed.  Change `i` back to int.
2006-01-08 02:25:34 +00:00
Neal Norwitz 46b7bda9bc Fix icc warnings: conversion from "long" to "int" may lose significant bits 2006-01-08 01:06:06 +00:00
Neal Norwitz 406c640344 Fix icc warnings: shadowing local variables 2006-01-07 21:23:26 +00:00
Fredrik Lundh 24f0fa97c5 SF#1391872
Floating point literals don't work in non-US locale in 2.5.  Patch and
new locale tests by Hye-Shik Chang.
2005-12-29 20:35:52 +00:00
Neal Norwitz 30b5c5d011 Fix SF bug #1072182, problems with signed characters.
Most of these can be backported.
2005-12-19 06:05:18 +00:00
Neal Norwitz 84456bdab3 Cleanup a bit and make things more consistent.
Don't double check for NULLs and don't initialize if not necessary.
No functional changes.
2005-12-18 03:16:20 +00:00
Neal Norwitz f599f424a2 SF patch #1355913, PEP 341 - Unification of try/except and try/finally
Modified since ast-arenas was implemented.
2005-12-17 21:33:47 +00:00
Neal Norwitz adb69fcdff Merge from ast-arena. This reduces the code in Python/ast.c by ~300 lines,
simplifies a lot of error handling code, and fixes many memory leaks.
2005-12-17 20:54:49 +00:00
Neal Norwitz f8d403dd97 SF #1377897, Bus error in ast
If a line had multiple semi-colons and ended with a semi-colon, we would
loop too many times and access a NULL node.  Exit the loop early if
there are no more children.
2005-12-11 20:12:40 +00:00
Neal Norwitz 8ad64aaacc SF #1370197, memory leak - ast_error_finish (in error conditions). 2005-12-11 20:08:33 +00:00
Neal Norwitz e536892541 Remove unnecessary extern variable 2005-12-05 07:16:38 +00:00
Neal Norwitz 7bcabc60a3 Fix a few more memory leaks
Document more info about the benefits of configuring without
pymalloc when running valgrind
2005-11-20 23:58:38 +00:00
Neal Norwitz a3fd07d524 add more doc 2005-11-16 05:49:04 +00:00
Neal Norwitz 6b34789046 Fix another memory leak or two (one real, one potential) 2005-11-15 07:17:53 +00:00
Neal Norwitz af8f974967 Add a note about how to do the memory deallocation a bit.
This needs a lot of work.
2005-11-15 05:09:44 +00:00
Neal Norwitz e76adcd78a Fix a whole bunch of potential memory leaks (and some real ones too)
in error conditions.
2005-11-15 05:04:31 +00:00
Neal Norwitz 79792651c4 Convert all internal errors from Exception to SystemError
Remove an abort() and let a SystemError be raised.
2005-11-14 04:25:03 +00:00
Neal Norwitz e8c0536d57 Fix memory leak with bad generator expression 2005-11-14 00:18:03 +00:00
Neal Norwitz 7b3d5e1779 remove useless debug print helper. fix a couple of exceptions 2005-11-13 21:17:28 +00:00
Neil Schemenauer 982e8d671c Refactor code for translating "power" nodes. 2005-10-25 09:16:05 +00:00
Neil Schemenauer c5dd10aa1d Write a separate ast_for_testlist_gexp() function instead of overloading
ast_for_testlist().  Also, write a ast_for_class_bases() function and in
the process fix a memory leak.  Add some assertions.
2005-10-25 07:54:54 +00:00
Neil Schemenauer 147b75931d Add an assert. 2005-10-23 03:38:19 +00:00
Armin Rigo 3144130217 ANSI-C-ify the placement of local var declarations. 2005-10-21 12:57:31 +00:00
Neal Norwitz 57071ce545 Oops, "=" is not a comparison operator 2005-10-21 05:15:07 +00:00
Jeremy Hylton 3e0055f8c6 Merge ast-branch to head
This change implements a new bytecode compiler, based on a
transformation of the parse tree to an abstract syntax defined in
Parser/Python.asdl.

The compiler implementation is not complete, but it is in stable
enough shape to run the entire test suite excepting two disabled
tests.
2005-10-20 19:59:25 +00:00