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32 Commits

Author SHA1 Message Date
Mark Shannon
3bd6035b6b bpo-42908: Mark cleanup code at end of try-except and with artificial (#24202) 
* Mark bytecodes at end of try-except as artificial.

* Make sure that the CFG is consistent throughout optimiization. 

* Extend line-number propagation logic so that implicit returns after 'try-except' or 'with' have the correct line numbers.

* Update importlib
 2021-01-13 12:05:43 +00:00
Mark Shannon
127dde5916 bpo-42810: Mark jumps at end of if and try statements as artificial. (GH-24091) 
* Mark jumps at end of if and try statements as artificial.

* Update importlib

* Add comment explaining the purpose of ADDOP_JUMP_NOLINE.
 2021-01-04 18:06:55 +00:00
Mark Shannon
28b75c80dc bpo-42246: Don't eliminate jumps to jumps, if it will break PEP 626. (GH-23896) 2020-12-23 11:43:10 +00:00
Mark Shannon
f2dbfd7e20 bpo-42634: Mark reraise after except blocks as artificial. (GH-23877) 
* Mark reraise after except blocks as artificial.

* Update importlib

* Update dis test.
 2020-12-21 13:53:50 +00:00
Irit Katriel
fb34096140 bpo-24792: Fix zipimporter masking the cause of import errors (GH-22204) 
zipimport's _unmarshal_code swallows import errors and then _get_module_code doesn't know the cause of the error, and returns the generic, and sometimes incorrect, 'could not find...'.

Automerge-Triggered-By: GH:brettcannon
 2020-12-18 16:09:54 -08:00
Mark Shannon
bf353f3c2d bpo-42246: Make sure that f_lasti, and thus f_lineno, is set correctly after raising or reraising an exception (GH-23803) 
* Ensure that f_lasti is set correctly after an exception is raised to conform to PEP 626.

* Update importlib

* Add NEWS.
 2020-12-17 13:55:28 +00:00
Mark Shannon
8473cf89bd bpo-42246: Remove DO_NOT_EMIT_BYTECODE macros, so that while loops and if statements conform to PEP 626. (GH-23743) 2020-12-15 11:07:50 +00:00
Mark Shannon
56aa20f9eb Don't generate spurious line number in try-except-finally. (#23760) 2020-12-14 10:19:10 +00:00
Brett Cannon
2de5097ba4 bpo-26131: Deprecate usage of load_module() (GH-23469) 
Raise an ImportWarning when the import system falls back on load_module(). As for implementations of load_module(), raise a DeprecationWarning.
 2020-12-04 15:39:21 -08:00
Mark Shannon
5977a7989d bpo-42246: Make sure that line number is correct after a return, as required by PEP 626 (GH-23495) 
Make sure that line number is correct after a return, as defined by PEP 626.
 2020-12-02 13:31:40 +00:00
Mark Shannon
266b462238 bpo-42349: Compiler clean up. More yak-shaving for PEP 626. (GH-23267) 
Make sure that CFG from compiler front-end is correct. Be a bit more aggressive in the compiler back-end.
 2020-11-17 19:30:14 +00:00
Brett Cannon
d2e94bb084 bpo-42131: Add PEP 451-related methods to zipimport (GH-23187) 
Specifically, find_spec(), create_module(), and exec_module().

Co-authored-by: Nick Coghlan <ncoghlan@gmail.com>
 2020-11-13 15:14:58 -08:00
Mark Shannon
cc75ab791d bpo-42246: Eliminate jumps to exit blocks by copying those blocks. (#23251) 
* Compiler: eliminate jumps to short exit blocks by copying.
 2020-11-12 19:49:33 +00:00
Mark Shannon
877df851c3 bpo-42246: Partial implementation of PEP 626. (GH-23113) 
* Implement new line number table format, as defined in PEP 626.
 2020-11-12 09:43:29 +00:00
Mark Shannon
6e8128f02e bpo-41323: Perform 'peephole' optimizations directly on the CFG. (GH-21517) 
* Move 'peephole' optimizations into compile.c and perform them directly on the CFG.
 2020-07-30 10:03:00 +01:00
Jason R. Coombs
843c277656 bpo-39791 native hooks for importlib.resources.files (GH-20576) 
* Provide native .files support on SourceFileLoader.

* Add native importlib.resources.files() support to zipimporter. Remove fallback support.

* make regen-all

* 📜🤖 Added by blurb_it.

* Move 'files' into the ResourceReader so it can carry the relevant module name context.

* Create 'importlib.readers' module and add FileReader to it.

* Add zip reader and rely on it for a TraversableResources object on zipimporter.

* Remove TraversableAdapter, no longer needed.

* Update blurb.

* Replace backslashes with forward slashes.

* Incorporate changes from importlib_metadata 2.0, finalizing the interface for extension via get_resource_reader.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
 2020-06-07 21:00:51 -04:00
Serhiy Storchaka
61cb3d02b8 bpo-39987: Simplify setting lineno in the compiler. (GH-19037) 2020-03-17 18:07:30 +02:00
Mark Shannon
9af0e47b17 bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754) 
Break up COMPARE_OP into four logically distinct opcodes:
* COMPARE_OP for rich comparisons
* IS_OP for 'is' and 'is not' tests
* CONTAINS_OP for 'in' and 'is not' tests
* JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
 2020-01-14 10:12:45 +00:00
Xtreak
79f02fee1a bpo-39033: Fix NameError in zipimport during hash validation (GH-17588) 
Patch by Karthikeyan Singaravelan.
 2019-12-16 09:34:12 +10:00
Mark Shannon
fee552669f Produce cleaner bytecode for 'with' and 'async with' by generating separate code for normal and exceptional paths. (#6641) 
Remove BEGIN_FINALLY, END_FINALLY, CALL_FINALLY and POP_FINALLY bytecodes. Implement finally blocks by code duplication.
Reimplement frame.lineno setter using line numbers rather than bytecode offsets.
 2019-11-21 09:11:43 +00:00
Zackery Spytz
ce6a070414 bpo-34880: Add the LOAD_ASSERTION_ERROR opcode. (GH-15073) 
Fix assert statement misbehavior if AssertionError is shadowed.
 2019-08-25 12:44:09 +03:00
Serhiy Storchaka
ef61c524dd bpo-37830: Fix compilation of break and continue in finally. (GH-15320) 
Fix compilation of "break" and "continue" in the
"finally" block when the corresponding "try" block
contains "return" with a non-constant value.
 2019-08-24 13:11:52 +03:00
Pablo Galindo
3498c642f4 bpo-37213: Handle negative line deltas correctly in the peephole optimizer (GH-13969) 
The peephole optimizer was not optimizing correctly bytecode after negative deltas were introduced. This is due to the fact that some special values (255) were being searched for in both instruction pointer delta and line number deltas.
 2019-06-13 19:16:22 +01:00
Steve Dower
b82e17e626 bpo-36842: Implement PEP 578 (GH-12613) 
Adds sys.audit, sys.addaudithook, io.open_code, and associated C APIs.
 2019-05-23 08:45:22 -07:00
Pablo Galindo
8c77b8cb91 bpo-36540: PEP 570 -- Implementation (GH-12701) 
This commit contains the implementation of PEP570: Python positional-only parameters.

* Update Grammar/Grammar with new typedarglist and varargslist

* Regenerate grammar files

* Update and regenerate AST related files

* Update code object

* Update marshal.c

* Update compiler and symtable

* Regenerate importlib files

* Update callable objects

* Implement positional-only args logic in ceval.c

* Regenerate frozen data

* Update standard library to account for positional-only args

* Add test file for positional-only args

* Update other test files to account for positional-only args

* Add News entry

* Update inspect module and related tests
 2019-04-29 13:36:57 +01:00