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bpo-42739: Don't use sentinels to mark end of line table. (GH-25657)

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* Add length parameter to PyLineTable_InitAddressRange and doen't use sentinel values at end of table. Makes the line number table more robust.

* Update PyCodeAddressRange to match PEP 626.
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Mark Shannon 2021-04-29 13:12:51 +01:00 • committed by GitHub
parent 53dd6c99b3
commit c76da79b37
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13 changed files with 4968 additions and 4986 deletions
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3
Lib/importlib/_bootstrap_external.py
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@ -350,6 +350,7 @@ _code_type = type(_write_atomic.__code__)
# Python 3.10a7 3435 Use instruction offsets (as opposed to byte offsets).
# Python 3.10b1 3436 (Add GEN_START bytecode #43683)
# Python 3.10b1 3437 (Undo making 'annotations' future by default - We like to dance among core devs!)
# Python 3.10b1 3438 Safer line number table handling.
#
# MAGIC must change whenever the bytecode emitted by the compiler may no
@ -359,7 +360,7 @@ _code_type = type(_write_atomic.__code__)
# Whenever MAGIC_NUMBER is changed, the ranges in the magic_values array
# in PC/launcher.c must also be updated.
MAGIC_NUMBER = (3437).to_bytes(2, 'little') + b'\r\n'
MAGIC_NUMBER = (3438).to_bytes(2, 'little') + b'\r\n'
_RAW_MAGIC_NUMBER = int.from_bytes(MAGIC_NUMBER, 'little') # For import.c
_PYCACHE = '__pycache__'