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gh-126937: ctypes: fix TypeError when a field's size is >65535 bytes #126938

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Merged
merged 20 commits into from
Dec 10, 2024
Merged

gh-126937: ctypes: fix TypeError when a field's size is >65535 bytes #126938

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1962567
Fix rejection when non-bitfield fields are larger than 2^16 bytes
Melissa0x1f992 Nov 17, 2024
1900cf5
Merge pull request #1 from Melissa0x1f992/use-bitsize-param
Melissa0x1f992 Nov 17, 2024
2bd972b
📜🤖 Added by blurb_it.
blurb-it[bot] Nov 17, 2024
d2954cd
Update Modules/_ctypes/cfield.c
terryjreedy Nov 17, 2024
0d21229
Remove specific dependency on Python 3.12 for black
Melissa0x1f992 Nov 18, 2024
d8a6f08
Add test case for large fields
Melissa0x1f992 Nov 18, 2024
16bfb44
Merge pull request #2 from Melissa0x1f992/use-bitsize-param
Melissa0x1f992 Nov 18, 2024
7402a8f
Reduce test field size to (2^31 - 1) to support 32 bit systems
Melissa0x1f992 Nov 18, 2024
8994ad0
Merge branch 'python:main' into main
Melissa0x1f992 Nov 18, 2024
db171e0
Reduce test field size to (2^31 - 1) to support 32 bit systems
Melissa0x1f992 Nov 18, 2024
7bc0ceb
Merge pull request #3 from Melissa0x1f992/use-bitsize-param
Melissa0x1f992 Nov 18, 2024
cd8c011
Merge in the main branch
encukou Dec 4, 2024
a3bd171
Remove pre-commit config (moved to #126971)
encukou Dec 4, 2024
5e8aec0
Use PyLong_AsSsize_t to convert to Py_ssize_t
encukou Dec 4, 2024
7d3bb10
Test maximum field size (sys.maxsize / 8, so we can count bits later)
encukou Dec 4, 2024
946f261
Rework the asserts.
encukou Dec 4, 2024
19c1b3b
Test naked c_char as well
encukou Dec 4, 2024
dcf97f2
Better name for the test
encukou Dec 4, 2024
03bc32b
Add comment
encukou Dec 4, 2024
f61faa6
Reword changelog
encukou Dec 4, 2024
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4 changes: 2 additions & 2 deletions 4 .pre-commit-config.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -29,12 +29,12 @@ repos:
- id: black
name: Run Black on Tools/build/check_warnings.py
files: ^Tools/build/check_warnings.py
language_version: python3.12
language_version: python3
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args: [--line-length=79]
- id: black
name: Run Black on Tools/jit/
files: ^Tools/jit/
language_version: python3.12
language_version: python3
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- repo: https://github.com/pre-commit/pre-commit-hooks
rev: v5.0.0
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6 changes: 6 additions & 0 deletions 6 Lib/test/test_ctypes/test_struct_fields.py
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Expand Up @@ -75,6 +75,12 @@ def __init_subclass__(cls, **kwargs):
'ctypes state is not initialized'):
class Subclass(BrokenStructure): ...

def test_gh126937(self):
class X(self.cls):
_fields_ = [('char', c_char),]
class Y(self.cls):
_fields_ = [('largeField', X * (2 ** 32))]

# __set__ and __get__ should raise a TypeError in case their self
# argument is not a ctype instance.
def test___set__(self):
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