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Author SHA1 Message Date
Neal Norwitz
3a5468efb0 Update known issues to reflect reality 2006-03-02 04:06:10 +00:00
Martin v. Löwis
49c5da1d88 Patch #1440601: Add col_offset attribute to AST nodes. 2006-03-01 22:49:05 +00:00
Jeremy Hylton
e9357b21c0 Tabify and reflow some long lines. 
Much of the peephole optimizer is now indented badly, but it's about
to be revised anyway.
 2006-03-01 15:47:05 +00:00
Thomas Wouters
5e9f1fa706 Generally inehrit codeflags that are in PyCF_MASK, instead of writing it out 
in multiple places. This makes compile()/eval()/etc also inherit the
absolute-import codeflag, like division and with-statement already were.
 2006-02-28 20:02:27 +00:00
Thomas Wouters
34aa7ba114 from __future__ import with_statement addon for 'with', mostly written by 
Neal.
 2006-02-28 19:02:24 +00:00
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
Thomas Wouters
1175c43a12 Clarify C-style exception handling with proper label name. 2006-02-27 22:49:54 +00:00
Thomas Wouters
bfe51ea5c8 Fix assertions. 2006-02-27 22:48:55 +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
Thomas Wouters
dca3b9c797 PEP 308 implementation, including minor refdocs and some testcases. It 
breaks the parser module, because it adds the if/else construct as well as
two new grammar rules for backward compatibility. If no one else fixes
parsermodule, I guess I'll go ahead and fix it later this week.

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

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

changes into

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

Since there's no way the former version can be useful, it's probably a
bugfix ;)
 2006-02-27 00:24:13 +00:00
Martin v. Löwis
18e165558b Merge ssize_t branch. 2006-02-15 17:27:45 +00:00
Neal Norwitz
08b401f67a Fix icc warnings: single bit fields should be unsigned, shadowing local variables 2006-01-07 21:24:09 +00:00
Martin v. Löwis
94962615b7 Adjust usage of compiler_use_new_block to its return type. 2006-01-02 21:15:05 +00:00
Fredrik Lundh
93d69a7948 fixed compilation with an ordinary C89 compiler 2005-12-18 15:44:21 +00:00
Neal Norwitz
51abbc7b4a Fix Armin's bug 1333982. He found it, he didn't created it :-) 
This code generated a C assertion:
        assert 1, ([s for s in x] +
                   [s for s in x])
        pass

assert was completely broken, it needed to use the proper block.
compiler_use_block() is now no longer used, so remove it.
 2005-12-18 07:06:23 +00:00
Neal Norwitz
4e6bf49a5e Handle more error conditions with SystemError 2005-12-18 05:32:41 +00:00
Neal Norwitz
87b801cc2d Set MemoryError when alloc fails 2005-12-18 04:42:47 +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
28b32ac6bc Simplify logic for handling import * 2005-12-06 07:41:30 +00:00
Neal Norwitz
3715c3e576 Fix a few more ref leaks. Backport candidate 2005-11-24 22:09:18 +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
4737b2348b Last batch of ref leaks in new AST code. 
Also converted a bunch of assert(0) to SystemError's.

There are still printfs, etc that need to be cleaned up.
 2005-11-19 23:58:29 +00:00
Nick Coghlan
944d3eb154 Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c 2005-11-16 12:46:55 +00:00
Neal Norwitz
b6fc9df8fc Fix a lot of memory and ref leaks in error paths. 
(Call symtable_exit_block or compiler_exit_scope as appropriate)

Use PyMem_Free on c_future since it was allocated with PyMem_Malloc
 2005-11-13 18:50:34 +00:00
Neal Norwitz
2744c6cc35 make internal method static 2005-11-13 01:08:38 +00:00
Neil Schemenauer
c396d9edd6 Ensure that compiler_exit_scope() is called as necessary to free memory 
allocated by compiler_enter_scope().  Change return type for
compiler_exit_scope() to be void.
 2005-10-25 06:30:14 +00:00
Neal Norwitz
f1d50684c6 Fix problem handling EXTENDED_ARGs from SF bug # 1333982 2005-10-23 23:00:41 +00:00
Neal Norwitz
7d37f2ff40 cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG 2005-10-23 22:40:47 +00:00
Neil Schemenauer
dad06a159e Remove unnecessary local variable. 2005-10-23 18:52:36 +00:00
Neil Schemenauer
8b528b28f1 Fix private name mangling. The symtable also must do mangles so that 
the scope of names can be correctly determined.
 2005-10-23 18:37:42 +00:00
Neil Schemenauer
3a44aaa30f Use PyTuple_Pack instead of Py_BuildValue. 2005-10-23 17:21:54 +00:00
Neil Schemenauer
d403c45386 Fix arigo's funky LOAD_NAME bug: implicit globals inside classes have 
historically been looked up using LOAD_NAME, not LOAD_GLOBAL.
looked up by LOAD_NAME, not
 2005-10-23 04:24:49 +00:00
Neil Schemenauer
ac699efad8 Don't stop generating code for import statements after the first "import as" 
part.  Fixes one bug from #1333982.
 2005-10-23 03:45:42 +00:00
Neil Schemenauer
ccd19218bc Use <lamba> as the function name for lambdas (matches old compiler). 2005-10-21 18:09:19 +00:00
Armin Rigo
3144130217 ANSI-C-ify the placement of local var declarations. 2005-10-21 12:57:31 +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
Tim Peters
ea9dcdc062 com_yield_expr(): Squash new compiler wng about unreferenced local. 2005-08-03 18:33:05 +00:00
Phillip J. Eby
0d6615fd29 PEP 342 implementation. Per Guido's comments, the generator throw() 
method still needs to support string exceptions, and allow None for the
third argument.  Documentation updates are needed, too.
 2005-08-02 00:46:46 +00:00
Brett Cannon
c9371d4a1b Fix signedness of various char variables to stop causing a warning under gcc 4. 2005-06-25 08:23:41 +00:00
Brett Cannon
409d8f2ebd Allow classes to be defined with empty parentheses. This means that 
``class C(): pass`` is no longer a syntax error.
 2005-03-05 06:47:57 +00:00
Brett Cannon
5dc8ced4a8 Silence a gcc warning about putting in parentheses around && expressions mixed 
with || expressions.  Also clarifies intend of 'if' conditional.
 2005-03-03 07:01:48 +00:00
Raymond Hettinger
e63a078635 Preserve sign of -0.0 when result is run through marshal. 2005-02-23 13:37:55 +00:00
Raymond Hettinger
07359a7fed Document how the pattern recognizer keeps all of its references in bounds. 
Add a test in case the underlying assumptions ever change (i.e. the
compiler starts generating code blocks that are not punctuated by
RETURN_VALUE).
 2005-02-21 20:03:14 +00:00
Raymond Hettinger
80121491e0 Teach the peepholer to fold unary operations on constants. 
Afterwards, -0.5 loads in a single step and no longer requires a runtime
UNARY_NEGATIVE operation.
 2005-02-20 12:41:32 +00:00
Raymond Hettinger
b615bf0681 Remove the set conversion which didn't work with: [] in (0,) 2005-02-10 01:42:32 +00:00
Raymond Hettinger
5e547969f8 Have set conversion replace existing constant if not used elsewhere. 2005-02-09 21:24:51 +00:00
Raymond Hettinger
7fcb7869ba Adopt Skip's idea to optimize lists of constants in the context 
of a "in" or "not in" test.
 2005-02-07 19:32:38 +00:00
Raymond Hettinger
a164574937 Transform "x in (1,2,3)" to "x in frozenset([1,2,3])". 
Inspired by Skip's idea to recognize the throw-away nature of sequences
in this context and to transform their type to one with better performance.
 2005-02-06 22:05:42 +00:00
Raymond Hettinger
9feb267caf Do not fold a constant if a large sequence will result. 
Saves space in the presence of code like: (None,)*10000
 2005-01-26 12:50:05 +00:00
Armin Rigo
664b43b3f4 Re-running python with/without the -Qnew flag uses incorrectly optimized 
bytecodes from the previously saved .pyc files.  Fixed by disabling the static
optimization of BINARY_DIVIDE between two constants.
 2005-01-07 18:10:51 +00:00