3715c3e576
Fix a few more ref leaks. Backport candidate
2005-11-24 22:09:18 +00:00
7bcabc60a3
Fix a few more memory leaks
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Document more info about the benefits of configuring without
pymalloc when running valgrind
2005-11-20 23:58:38 +00:00
4737b2348b
Last batch of ref leaks in new AST code.
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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
944d3eb154
Correctly handle identifiers for anonymous scopes and align genexpr name with symtable.c
2005-11-16 12:46:55 +00:00
b6fc9df8fc
Fix a lot of memory and ref leaks in error paths.
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(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
2744c6cc35
make internal method static
2005-11-13 01:08:38 +00:00
c396d9edd6
Ensure that compiler_exit_scope() is called as necessary to free memory
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allocated by compiler_enter_scope(). Change return type for
compiler_exit_scope() to be void.
2005-10-25 06:30:14 +00:00
f1d50684c6
Fix problem handling EXTENDED_ARGs from SF bug # 1333982
2005-10-23 23:00:41 +00:00
7d37f2ff40
cleanup a bit and reuse instrsize (instruction size). working towards fixing problems with EXTENDED_ARG
2005-10-23 22:40:47 +00:00
dad06a159e
Remove unnecessary local variable.
2005-10-23 18:52:36 +00:00
8b528b28f1
Fix private name mangling. The symtable also must do mangles so that
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the scope of names can be correctly determined.
2005-10-23 18:37:42 +00:00
3a44aaa30f
Use PyTuple_Pack instead of Py_BuildValue.
2005-10-23 17:21:54 +00:00
d403c45386
Fix arigo's funky LOAD_NAME bug: implicit globals inside classes have
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historically been looked up using LOAD_NAME, not LOAD_GLOBAL.
looked up by LOAD_NAME, not
2005-10-23 04:24:49 +00:00
ac699efad8
Don't stop generating code for import statements after the first "import as"
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part. Fixes one bug from #1333982 .
2005-10-23 03:45:42 +00:00
ccd19218bc
Use <lamba> as the function name for lambdas (matches old compiler).
2005-10-21 18:09:19 +00:00
3144130217
ANSI-C-ify the placement of local var declarations.
2005-10-21 12:57:31 +00:00
3e0055f8c6
Merge ast-branch to head
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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
ea9dcdc062
com_yield_expr(): Squash new compiler wng about unreferenced local.
2005-08-03 18:33:05 +00:00
0d6615fd29
PEP 342 implementation. Per Guido's comments, the generator throw()
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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
c9371d4a1b
Fix signedness of various char variables to stop causing a warning under gcc 4.
2005-06-25 08:23:41 +00:00
409d8f2ebd
Allow classes to be defined with empty parentheses. This means that
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``class C(): pass`` is no longer a syntax error.
2005-03-05 06:47:57 +00:00
5dc8ced4a8
Silence a gcc warning about putting in parentheses around && expressions mixed
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with || expressions. Also clarifies intend of 'if' conditional.
2005-03-03 07:01:48 +00:00
e63a078635
Preserve sign of -0.0 when result is run through marshal.
2005-02-23 13:37:55 +00:00
07359a7fed
Document how the pattern recognizer keeps all of its references in bounds.
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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
80121491e0
Teach the peepholer to fold unary operations on constants.
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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
b615bf0681
Remove the set conversion which didn't work with: [] in (0,)
2005-02-10 01:42:32 +00:00
5e547969f8
Have set conversion replace existing constant if not used elsewhere.
2005-02-09 21:24:51 +00:00
7fcb7869ba
Adopt Skip's idea to optimize lists of constants in the context
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of a "in" or "not in" test.
2005-02-07 19:32:38 +00:00
a164574937
Transform "x in (1,2,3)" to "x in frozenset([1,2,3])".
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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
9feb267caf
Do not fold a constant if a large sequence will result.
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Saves space in the presence of code like: (None,)*10000
2005-01-26 12:50:05 +00:00
664b43b3f4
Re-running python with/without the -Qnew flag uses incorrectly optimized
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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
c34f8673a1
Teach the peephole optimizer to fold simple constant expressions.
2005-01-02 06:17:33 +00:00
16b047904c
SF patch 1025636: Check for NULL returns in compile.c:com_import_stmt
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There is no test for this change, because there is no way to provoke memory errors on demand. Test suite passes, though.
2004-11-07 14:04:00 +00:00
5dec096e6a
Maintain peepholer's cumlc invariant by updating the running total
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everytime a LOAD_CONSTANT is encountered, created, or overwritten.
Added two tests to cover cases affected by the patch.
2004-11-02 04:20:10 +00:00
099ecfbec9
Simplify and future proof NOP counting in the peepholer.
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No longer assumes that the input is NOP free.
2004-11-01 15:19:11 +00:00
d7bcf4deb1
Fixed a comment and added another one.
2004-10-30 21:08:59 +00:00
effb3931ea
Adopt some peepholer suggestions from Armin Rigo:
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* Use simpler, faster two pass algorithm for markblocks().
* Free the blocks variable if not NULL and exiting without change.
* Verify that the rest of the compiler has not set an exception.
* Make the test for tuple of constants less restrictive.
* Embellish the comment for chained conditional jumps.
2004-10-30 08:55:08 +00:00
23109ef11e
SF bug #1053819 : Segfault in tuple_of_constants
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Peepholer could be fooled into misidentifying a tuple_of_constants.
Added code to count consecutive occurrences of LOAD_CONST.
Use the count to weed out the misidentified cases.
Added a unittest.
2004-10-26 08:59:14 +00:00
9047c8f73d
SF bug #1048870 : call arg of lambda not updating
2004-10-24 00:10:06 +00:00
fec0c466ad
Improve error message for augmented assignments to genexps or listcomps.
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Rather than introduce new logic, took the approach of making the message
itself more general.
2004-09-29 23:54:08 +00:00
8ffc1410e2
Fix two erroneous error messages.
2004-09-29 21:47:10 +00:00
06cc973d06
Replaced a test with an assertion.
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(Suggested by Michael Hudson.)
2004-09-28 17:22:12 +00:00
2c31a058eb
SF patch #1031667 : Fold tuples of constants into a single constant
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Example:
>>> import dis
>>> dis.dis(compile('1,2,3', '', 'eval'))
0 0 LOAD_CONST 3 ((1, 2, 3))
3 RETURN_VALUE
2004-09-22 18:44:21 +00:00
1a4ddaecc7
SF patch #1007189 , multi-line imports, for instance:
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"from blah import (foo, bar
baz, bongo)"
2004-08-31 10:07:13 +00:00
1792bfbf90
Bypass peepholing of code with lineno tables having intervals >= 255.
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Allows the lineno fixup code to remain simple and not have to deal with
multibyte codings.
* Add an assertion to that effect.
* Remove the XXX comment on the subject.
2004-08-25 17:19:38 +00:00
65d3c0537a
Fix typo in comment and add clarification.
2004-08-25 15:15:56 +00:00
ef0a82b682
Simplify chains of conditional jumps.
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(Suggested by Neal Norwitz.)
2004-08-25 03:18:29 +00:00
a12fa148d7
Incorporate review comments courtesy of Neal Norwitz:
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* Perform the code length check earlier.
* Eliminate the extra PyMem_Free() upon hitting an EXTENDED_ARG.
* Assert that the NOP count used in jump retargeting matches the NOPs
eliminated in the final step.
* Add an XXX note to indicate that more work is being to done to
handle linenotab with intervals > 255.
2004-08-24 04:34:16 +00:00
fd2d1f7870
SF Patch #1013667 : Cleanup Peepholer Output
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* Make a pass to eliminate NOPs. Produce code that is more readable,
more compact, and a tiny bit faster. Makes the peepholer more flexible
in the scope of allowable transformations.
* With Guido's okay, bumped up the magic number so that this patch gets
widely exercised before the alpha goes out.
2004-08-23 23:37:48 +00:00
1a7892924f
Move the bytecode optimizer upstream so that its results are saved in pyc
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files and not re-optimized upon import. Saves a bit of startup time while
still remaining decoupled from the rest of the compiler.
As a side benefit, handcoded bytecode is not run through the optimizer
when new code objects are created. Hopefully, a handcoder has already
created exactly what they want to have run.
(Idea suggested by Armin Rigo and Michael Hudson. Initially avoided
because of worries about compiler coupling; however, only the nexus
point needed to be moved so there won't be a conflict when the AST
branch is loaded.)
2004-08-18 05:22:06 +00:00
Neal Norwitz
Nick Coghlan
Neil Schemenauer
Armin Rigo
Jeremy Hylton
Tim Peters
Phillip J. Eby
Brett Cannon
Raymond Hettinger
Anthony Baxter