Commit Graph

31 Commits

Author SHA1 Message Date
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
Anthony Sottile 995d9b9297 bpo-16806: Fix `lineno` and `col_offset` for multi-line string tokens (GH-10021) 2019-01-13 13:05:13 +09:00
Serhiy Storchaka b619b09792
bpo-31241: Fix AST node position for list and generator comprehensions. (GH-10633)
The lineno and col_offset attributes of AST nodes for list comprehensions,
generator expressions and tuples are now point to the opening parenthesis or
square brace. For tuples without parenthesis they point to the position
of the first item.
2018-11-27 09:40:29 +02:00
INADA Naoki c2e1607a51 bpo-34100: Merge constants recursively (GH-8341)
There are some same consts in a module.  This commit merges them into
single instance.  It reduces number of objects in memory after loading modules.


https://bugs.python.org/issue34100
2018-11-26 04:23:22 -08:00
Elvis Pranskevichus a6e956bcb0 bpo-34726: Fix handling of hash-based pycs in zipimport. (GH-10327)
Current support for hash-based bytecode files in `zipimport` is rather
sparse, which leads to test failures when the test suite is ran with
the ``SOURCE_DATE_EPOCH`` environment variable set.

This teaches zipimport to handle hash-based pycs properly.
2018-11-07 20:34:59 +02:00
Zackery Spytz 5a5ce064b3 bpo-5950: Support reading zips with comments in zipimport (#9548)
* bpo-5950: Support reading zips with comments in zipimport
2018-09-25 15:15:47 -04:00
Serhiy Storchaka 9da3961f36
bpo-25711: Move _ZipImportResourceReader from importlib to zipimport. (GH-9406) 2018-09-19 09:28:06 +03:00
Serhiy Storchaka 79d1c2e6c9
bpo-25711: Rewrite zipimport in pure Python. (GH-6809) 2018-09-18 22:22:29 +03:00