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[mypyc] [WIP] feat(test): failing test case using builtin weakref.proxy #19571

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[mypyc] [WIP] feat(test): failing test case using builtin weakref.proxy #19571

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0471c99
add tests
BobTheBuidler Aug 2, 2025
266993d
_weakref stubs
BobTheBuidler Aug 2, 2025
55f1f66
weakref stubs
BobTheBuidler Aug 2, 2025
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add tests
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@BobTheBuidler
BobTheBuidler committed Aug 2, 2025
commit 0471c999402bfacfb134af433548e015f6b86d77
70 changes: 67 additions & 3 deletions mypyc/test-data/run-weakref.test
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ from mypy_extensions import mypyc_attr
@mypyc_attr(native_class=False)
class Object:
"""some random weakreffable object"""
pass

def test_weakref_ref():
obj = Object()
Expand All @@ -16,6 +15,20 @@ def test_weakref_ref():
obj = None
assert r() is None, r()

[file driver.py]
from native import test_weakref_ref

test_weakref_ref()


[case testWeakrefRefWithCallback]
from weakref import ref
from mypy_extensions import mypyc_attr

@mypyc_attr(native_class=False)
class Object:
"""some random weakreffable object"""

def test_weakref_ref_with_callback():
obj = Object()
r = ref(obj, lambda x: x)
Expand All @@ -24,7 +37,58 @@ def test_weakref_ref_with_callback():
assert r() is None, r()

[file driver.py]
from native import test_weakref_ref, test_weakref_ref_with_callback
from native import test_weakref_ref_with_callback

test_weakref_ref()
test_weakref_ref_with_callback()


[case testWeakrefProxy]
import pytest # type: ignore [import-not-found]
from weakref import proxy
from mypy_extensions import mypyc_attr

@mypyc_attr(native_class=False)
class Object:
"""some random weakreffable object"""
def some_meth(self) -> int:
return 1

def test_weakref_proxy():
obj = Object()
p = proxy(obj)
assert obj.some_meth() == 1
assert p.some_meth() == 1
obj = None
with pytest.raises(ReferenceError):
p.some_meth()

[file driver.py]
from native import test_weakref_proxy

test_weakref_proxy()


[case testWeakrefProxyWithCallback]
import pytest # type: ignore [import-not-found]
from weakref import proxy
from mypy_extensions import mypyc_attr

@mypyc_attr(native_class=False)
class Object:
"""some random weakreffable object"""
def some_meth(self) -> int:
return 1

def test_weakref_proxy_with_callback():
obj = Object()
p = proxy(obj, lambda x: x)
assert obj.some_meth() == 1
assert p.some_meth() == 1
obj = None
with pytest.raises(ReferenceError):
p.some_meth()

[file driver.py]
from native import test_weakref_proxy_with_callback

test_weakref_proxy_with_callback()