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fix memory corruption when subclassing variable-size types (e.g. `abi3` + 3.12 subclassing of native types)

#5823Merged
Comparing
davidhewitt:variable-class-subclassing
(
e0cab83
) with
main
(
fe00ce7
)
CodSpeed Performance Gauge
0%
Untouched
100
Ignored
21

Benchmarks

121 total
format_simple
pyo3-benches/benches/bench_pystring_from_fmt.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+9%
368.6 ns339.4 ns
extract_str_extract_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+3%
1.9 µs1.9 µs
call_method_one_arg
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+2%
633.3 µs618.6 µs
byte_slice_into_pyobject_medium
pyo3-benches/benches/bench_intopyobject.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+2%
1.5 µs1.4 µs
getattr_intern
pyo3-benches/benches/bench_intern.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+2%
3.3 µs3.2 µs
tuple_nth
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+1%
6 µs5.9 µs
tuple_nth_back
pyo3-benches/benches/bench_tuple.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+1%
6 µs6 µs
extract_bigint_big_positive
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+1%
3.4 µs3.4 µs
dirty_attach
pyo3-benches/benches/bench_attach.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+1%
3.7 µs3.7 µs
extract_bigint_big_negative
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
+1%
3.8 µs3.7 µs
err_new_restore_and_fetch
pyo3-benches/benches/bench_err.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
6.5 µs6.5 µs
list_nth
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
8.4 µs8.4 µs
list_nth_back
pyo3-benches/benches/bench_list.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
8.5 µs8.4 µs
extract_int_extract_fail
pyo3-benches/benches/bench_extract.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
8.5 µs8.5 µs
extract_bigint_huge_positive
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
11.3 µs11.2 µs
decimal_via_extract
pyo3-benches/benches/bench_decimal.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
12.1 µs12 µs
extract_bigint_huge_negative
pyo3-benches/benches/bench_bigint.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
13.3 µs13.3 µs
identify_object_type
pyo3-benches/benches/bench_any.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
14.4 µs14.4 µs
drop_many_objects
pyo3-benches/benches/bench_py.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
14.7 µs14.6 µs
extract_hashbrown_set
pyo3-benches/benches/bench_set.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
19 ms19 ms
first_time_init
pyo3-benches/benches/bench_pyclass.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
40.5 µs40.5 µs
extract_hashmap
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
26.8 ms26.7 ms
extract_hashbrown_map
pyo3-benches/benches/bench_dict.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
24 ms24 ms
call
pyo3-benches/benches/bench_call.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
575.1 µs575.1 µs
extract_hashset
pyo3-benches/benches/bench_set.rs::benches::criterion_benchmark
CodSpeed Performance Gauge
0%
23.5 ms23.5 ms

Commits

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Base
main
fe00ce7
+0.02%
newsfragment
e0cab83
12 hours ago
by davidhewitt
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