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148 Commits

Author SHA1 Message Date
Nitish Chandra
3a087beddd bpo-32836: Remove obsolete code from symtable pass (GH-5680) 
When comprehensions switched to using a nested scope, the old
code for generating a temporary name to hold the accumulation
target became redundant, but was never actually removed.

Patch by Nitish Chandra.
 2018-02-27 07:31:20 +10:00
Serhiy Storchaka
07ca9afaa8
bpo-10544: Disallow "yield" in comprehensions and generator expressions. (GH-4564) 2018-02-04 10:53:48 +02:00
Serhiy Storchaka
73a7e9b10b bpo-10544: Deprecate "yield" in comprehensions and generator expressions. (GH-4579) 
The current behaviour of yield expressions inside comprehensions  and
generator expressions is essentially an accident of implementation - it
arises implicitly from the way the compiler handles yield expressions inside
nested functions and generators.

Since the current behaviour wasn't deliberately designed, and is inherently
confusing, we're deprecating it, with no current plans to reintroduce it.
Instead, our advice will be to use a named nested generator definition
for cases where this behaviour is desired.
 2017-12-01 14:54:17 +10:00
Ivan Levkivskyi
8c83c23fa3 bpo-28936: Detect lexically first syntax error first (#4097) 
Lexically first global and nonlocal syntax errors at given scope should be detected first.
 2017-10-27 00:28:35 +03:00
Eric Snow
2ebc5ce42a bpo-30860: Consolidate stateful runtime globals. (#3397) 
* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals

Other globals are excluded (see globals.txt and check-c-globals.py).
 2017-09-07 23:51:28 -06:00
Serhiy Storchaka
3b73ea1278 Issue #28701: Replace PyUnicode_CompareWithASCIIString with _PyUnicode_EqualToASCIIString. 
The latter function is more readable, faster and doesn't raise exceptions.
 2016-11-16 10:19:20 +02:00
Serhiy Storchaka
f4934ea77d Issue #28701: Replace PyUnicode_CompareWithASCIIString with _PyUnicode_EqualToASCIIString. 
The latter function is more readable, faster and doesn't raise exceptions.
 2016-11-16 10:17:58 +02:00
Christian Heimes
517507c6d5 Issue #28100: Refactor error messages, patch by Ivan Levkivskyi 2016-09-23 20:26:30 +02:00
Yury Selivanov
52c4e7cc84 Issue #28008: Implement PEP 530 -- asynchronous comprehensions. 2016-09-09 10:36:01 -07:00
Guido van Rossum
6cff8744a0 Issue #27999: Make "global after use" a SyntaxError, and ditto for nonlocal. 
Patch by Ivan Levkivskyi.
 2016-09-09 09:36:26 -07:00
Yury Selivanov
eb6364557f Issue #28003: Implement PEP 525 -- Asynchronous Generators. 2016-09-08 22:01:51 -07:00
Yury Selivanov
f8cb8a16a3 Issue #27985: Implement PEP 526 -- Syntax for Variable Annotations. 
Patch by Ivan Levkivskyi.
 2016-09-08 20:50:03 -07:00
Christian Heimes
45af0c83da Fix potential NULL pointer dereference in update_symbols() 
symtable_analyze() calls analyze_block() with bound=NULL. Theoretically
that NULL can be passed down to update_symbols(). update_symbols() may
deference NULL and pass it to PySet_Contains()
 2016-09-09 00:22:28 +02:00
Martin Panter
19409197e2 Merge typo fixes from 3.5 2016-06-04 05:26:40 +00:00
Martin Panter
3ee6270262 Fix typos in code comment and documentation 2016-06-04 04:57:19 +00:00
Victor Stinner
f2c1aa1661 Add ast.Constant 
Issue #26146: Add a new kind of AST node: ast.Constant. It can be used by
external AST optimizers, but the compiler does not emit directly such node.

An optimizer can replace the following AST nodes with ast.Constant:

* ast.NameConstant: None, False, True
* ast.Num: int, float, complex
* ast.Str: str
* ast.Bytes: bytes
* ast.Tuple if items are constants too: tuple
* frozenset

Update code to accept ast.Constant instead of ast.Num and/or ast.Str:

* compiler
* docstrings
* ast.literal_eval()
* Tools/parser/unparse.py
 2016-01-26 00:40:57 +01:00
Benjamin Peterson
5aab44b301 merge 3.5 (#25973) 2015-12-29 10:08:51 -06:00
Benjamin Peterson
3cc8f4b969 make recording and reporting errors and nonlocal and global directives more robust (closes #25973) 2015-12-29 10:08:34 -06:00
Serhiy Storchaka
ef1585eb9a Issue #25923: Added more const qualifiers to signatures of static and private functions. 2015-12-25 20:01:53 +02:00
Eric V. Smith
235a6f0984 Issue #24965: Implement PEP 498 "Literal String Interpolation". Documentation is still needed, I'll open an issue for that. 2015-09-19 14:51:32 -04:00
Yury Selivanov
b7666a3093 Issue #24619: More tests; fix nits in compiler.c 2015-07-22 14:48:57 +03:00
Yury Selivanov
f488fb422a Issue #19235: Add new RecursionError exception. Patch by Georg Brandl. 2015-07-03 01:04:23 -04:00
Yury Selivanov
7544508f02 PEP 0492 -- Coroutines with async and await syntax. Issue #24017. 2015-05-11 22:57:16 -04:00
Benjamin Peterson
025e9ebd0a PEP 448: additional unpacking generalizations (closes #2292) 
Patch by Neil Girdhar.
 2015-05-05 20:16:41 -04:00
Benjamin Peterson
1dfd247c1b remove the concept of an unoptimized function scope from the compiler, since it can't happen anymore 2015-04-27 21:44:22 -04:00
Benjamin Peterson
9bdd61338d remove dead *-import checking code (closes #24049) 2015-04-24 12:02:29 -04:00
Benjamin Peterson
c30d05855a merge 3.3 (#19098) 2013-09-26 22:21:41 -04:00
Benjamin Peterson
305e5aac85 don't scale compiler stack frames if the recursion limit is huge (closes #19098) 2013-09-26 22:17:45 -04:00
Victor Stinner
14e461d5b9 Close #11619: The parser and the import machinery do not encode Unicode 
filenames anymore on Windows.
 2013-08-26 22:28:21 +02:00
Victor Stinner
9a4fb66966 Issue #18408: ste_new() initialize all attributes before handling error 
If an attribute is not initialized, the destructor can crash
 2013-07-11 22:49:00 +02:00
Benjamin Peterson
e2135c6158 move definition to top of block 2013-05-16 19:38:22 -05:00
Benjamin Peterson
e8e14591eb rather than passing locals to the class body, just execute the class body in the proper environment 2013-05-16 14:37:25 -05:00
Benjamin Peterson
1e93b06007 complain about "global __class__" in a class body (closes #17983) 2013-05-15 16:17:25 -05:00
Benjamin Peterson
312595ce3a hide the __class__ closure from the class body (#12370) 2013-05-15 15:26:42 -05:00
Benjamin Peterson
cda75be02a unify some ast.argument's attrs; change Attribute column offset (closes #16795) 
Patch from Sven Brauch.
 2013-03-18 10:48:58 -07:00
Benjamin Peterson
442f20996d create NameConstant AST class for None, True, and False literals (closes #16619) 2012-12-06 17:41:04 -05:00
Mark Dickinson
073f067369 Issue #16546: merge fix from 3.3 2012-11-25 14:37:43 +00:00
Mark Dickinson
ded35aeb9d Issue #16546: make ast.YieldFrom argument mandatory. 2012-11-25 14:36:26 +00:00
Nick Coghlan
e69bfc3fb6 Issue #5765: Merge from 3.3 2012-11-04 23:53:15 +10:00
Nick Coghlan
aab9c2b2ea Issue #5765: Apply a hard recursion limit in the compiler 
Previously, excessive nesting in expressions would blow the
stack and segfault the interpreter. Now, a hard limit based
on the configured recursion limit and a hardcoded scaling
factor is applied.
 2012-11-04 23:14:34 +10:00
Benjamin Peterson
d9c8702c0f point errors related to nonlocals and globals to the statement declaring them (closes #10189) 2012-10-31 20:26:20 -04:00
Benjamin Peterson
e132f527c9 check return value of _PyUnicode_AsString 2012-10-31 19:01:42 -04:00
Christian Heimes
10ca1fee8f Cleanup 'k' when the creation of PySTEntryObject fails. ad3824a90261 used to decref 'k' in too many error cases. 2012-09-12 17:58:20 +02:00
Christian Heimes
55ad6515c9 Cleanup 'k' when the creation of PySTEntryObject fails. ad3824a90261 used to decref 'k' in too many error cases. 2012-09-12 17:58:10 +02:00
Christian Heimes
9c5b521c71 Partly revert ad3824a90261 and add comment about reference ownership 2012-09-12 17:53:15 +02:00
Christian Heimes
1526582df6 Partly revert ad3824a90261 and add comment about reference ownership 2012-09-12 17:52:46 +02:00
Christian Heimes
310f81449a Closed reference leak of variable 'k' in function ste_new which wasn't decrefed in error cases 2012-09-10 03:09:17 +02:00
Christian Heimes
837e53a7c2 Closed reference leak of variable 'k' in function ste_new which wasn't decrefed in error cases 2012-09-10 03:08:46 +02:00
Nick Coghlan
0b43bcf528 Close #14857: fix regression in references to PEP 3135 implicit __class__ closure variable. Reopens issue #12370, but also updates unittest.mock to workaround that issue 2012-05-27 18:17:07 +10:00
Benjamin Peterson
527c622926 make YieldFrom its own distinct from Yield (closes #13780) 2012-01-14 08:58:23 -05:00