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gh-106672: C API: Report indiscriminately ignored errors #106674

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Merged
merged 18 commits into from
Nov 7, 2023
Merged

gh-106672: C API: Report indiscriminately ignored errors #106674

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e134bad
gh-106672: C API: Report indiscriminately ignored errors
serhiy-storchaka Jul 12, 2023
00ce038
Update output messsages.
serhiy-storchaka Jul 12, 2023
168f92a
Add an entry in What's New.
serhiy-storchaka Jul 12, 2023
884da66
Merge branch 'main' into capi-write-unraisable-for-ignored-errors
serhiy-storchaka Jul 12, 2023
58dbac5
Merge branch 'main' into capi-write-unraisable-for-ignored-errors
serhiy-storchaka Aug 7, 2023
07c8250
Fix smelly symbol.
serhiy-storchaka Aug 7, 2023
56e3a49
Remove PyDict_GetItem(dict, invalid_key) from test_dict_capi().
serhiy-storchaka Aug 7, 2023
4e13132
Merge branch 'main' into capi-write-unraisable-for-ignored-errors
serhiy-storchaka Aug 7, 2023
b5a661b
Fix regressions in handling NULLs.
serhiy-storchaka Aug 7, 2023
ab5eb8f
Merge branch 'main' into capi-write-unraisable-for-ignored-errors
serhiy-storchaka Aug 12, 2023
c681ce2
Merge branch 'main' into capi-write-unraisable-for-ignored-errors
serhiy-storchaka Aug 26, 2023
82efd1c
Fix merging error.
serhiy-storchaka Aug 26, 2023
c687ff8
Merge branch 'main' into capi-write-unraisable-for-ignored-errors
serhiy-storchaka Nov 5, 2023
310ae51
Add more suggestions.
serhiy-storchaka Nov 5, 2023
241576a
Improve error messages for ignoring errors set before the calls.
serhiy-storchaka Nov 5, 2023
fd50ea9
Apply suggestions from code review
serhiy-storchaka Nov 6, 2023
587b3cc
Address review comments.
serhiy-storchaka Nov 6, 2023
bfb206a
Remove non-existing cases.
serhiy-storchaka Nov 6, 2023
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Fix regressions in handling NULLs.
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@serhiy-storchaka
serhiy-storchaka committed Aug 7, 2023
commit b5a661bbd929bb3d066e56c56f1825eb6c187aed
19 changes: 16 additions & 3 deletions Lib/test/test_capi/test_abstract.py
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Original file line number Diff line number Diff line change
Expand Up @@ -322,8 +322,17 @@ def test_mapping_haskey(self):
self.assertEqual(str(cm.unraisable.exc_value),
'list indices must be integers or slices, not str')

# CRASHES haskey({}, NULL)
# CRASHES haskey(NULL, 'a')
with support.catch_unraisable_exception() as cm:
self.assertFalse(haskey({}, NULL))
self.assertEqual(cm.unraisable.exc_type, SystemError)
self.assertEqual(str(cm.unraisable.exc_value),
'null argument to internal routine')

with support.catch_unraisable_exception() as cm:
self.assertFalse(haskey(NULL, 'a'))
self.assertEqual(cm.unraisable.exc_type, SystemError)
self.assertEqual(str(cm.unraisable.exc_value),
'null argument to internal routine')

def test_mapping_haskeystring(self):
haskeystring = _testcapi.mapping_haskeystring
Expand Down Expand Up @@ -360,7 +369,11 @@ def test_mapping_haskeystring(self):
self.assertEqual(str(cm.unraisable.exc_value),
'list indices must be integers or slices, not str')

# CRASHES haskeystring(NULL, b'a')
with support.catch_unraisable_exception() as cm:
self.assertFalse(haskeystring(NULL, b'a'))
self.assertEqual(cm.unraisable.exc_type, SystemError)
self.assertEqual(str(cm.unraisable.exc_value),
"null argument to internal routine")

def test_object_setitem(self):
setitem = _testcapi.object_setitem
Expand Down
22 changes: 20 additions & 2 deletions Objects/abstract.c
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Expand Up @@ -2429,7 +2429,16 @@ int
PyMapping_HasKeyString(PyObject *obj, const char *key)
{
PyObject *dummy;
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Maybe rename to 'item' or 'value'.

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Done.

int rc = PyMapping_GetOptionalItemString(obj, key, &dummy);
int rc;
if (obj == NULL) {
// For backward compatibility.
// PyMapping_GetOptionalItemString() crashes if it is NULL.
null_error();
rc = -1;
}
else {
rc = PyMapping_GetOptionalItemString(obj, key, &dummy);
}
if (rc < 0) {
_PyErr_WriteUnraisableMsg(
"in PyMapping_HasKeyString(); consider using "
Expand All @@ -2454,7 +2463,16 @@ int
PyMapping_HasKey(PyObject *obj, PyObject *key)
{
PyObject *dummy;
int rc = PyMapping_GetOptionalItem(obj, key, &dummy);
int rc;
if (obj == NULL || key == NULL) {
// For backward compatibility.
// PyMapping_GetOptionalItem() crashes if any of them is NULL.
null_error();
rc = -1;
}
else {
rc = PyMapping_GetOptionalItem(obj, key, &dummy);
}
if (rc < 0) {
_PyErr_WriteUnraisableMsg(
"in PyMapping_HasKey(); consider using "
Expand Down