issue with dataclass default properties (again) #16141
Description
The code described in #8025 still crashes in the same place in mypy 1.5.1 despite the fact that the issue was closed back in 2019 as fixed. Either it was never actually fixed or this is a regression.
To Reproduce
from dataclasses import dataclass, field
@dataclass
class Foo:
@property
def c(self) -> int:
return 0
c: int = field(init=False, default=c)then run mypy foo.py.
Traceback
Traceback (most recent call last):
File "/tmp/tmp.nVCcmNZCU9/.venv/bin/mypy", line 8, in <module>
sys.exit(console_entry())
^^^^^^^^^^^^^^^
File "/tmp/tmp.nVCcmNZCU9/.venv/lib/python3.11/site-packages/mypy/__main__.py", line 15, in console_entry
main()
File "mypy/main.py", line 94, in main
File "mypy/main.py", line 173, in run_build
File "mypy/build.py", line 195, in build
File "mypy/build.py", line 268, in _build
File "mypy/build.py", line 2927, in dispatch
File "mypy/build.py", line 3325, in process_graph
File "mypy/build.py", line 3420, in process_stale_scc
File "mypy/semanal_main.py", line 99, in semantic_analysis_for_scc
File "mypy/semanal_main.py", line 439, in apply_class_plugin_hooks
File "mypy/semanal_main.py", line 475, in apply_hooks_to_class
File "mypy/plugins/dataclasses.py", line 932, in dataclass_class_maker_callback
# included, despite the fact that they're not real fields. That's
File "mypy/plugins/dataclasses.py", line 231, in transform
repr_running = set()
File "mypy/plugins/dataclasses.py", line 576, in collect_attributes
# there's at least one keyword-only arg, there needs to be a test here
AssertionError
The source lines in the traceback are wrong for some reason, but if you actually go to lines indicated in the traceback, you can plainly see that they are (mostly) the same as in #8025.
Your Environment
- Mypy version used:
1.3.0 (compiled: no),1.5.1 (compiled: yes) - Mypy command-line flags: none
- Mypy configuration options from
mypy.ini(and other config files): none - Python version used: 3.11.5
- Operating system and version: Manjaro/Arch Linux