Mypyc IntEnum undeclared name error while compiling

[CoolCat467]

Bug Report

Class attributes created with IntEnum are not created properly

To Reproduce

minimax.py

from __future__ import annotations

from enum import IntEnum, auto


class Player(IntEnum):
    """Enum for player status."""

    MIN = auto()
    MAX = auto()

print(f'{Player.MAX = }')

mypyc minimax.py

Expected Behavior

No issues compiling

Actual Behavior

running build_ext
building 'minimax' extension
x86_64-linux-gnu-gcc -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O2 -Wall -fPIC -I/home/<my username>/.local/lib/python3.12/site-packages/mypyc/lib-rt -I/usr/include/python3.12 -c build/__native.c -o build/temp.linux-x86_64-cpython-312/build/__native.o -O3 -g1 -Werror -Wno-unused-function -Wno-unused-label -Wno-unreachable-code -Wno-unused-variable -Wno-unused-command-line-argument -Wno-unknown-warning-option -Wno-unused-but-set-variable -Wno-ignored-optimization-argument -Wno-cpp
build/__native.c: In function ‘CPyDef___top_level__’:
build/__native.c:415:17: error: ‘CPyStatic_Player___MAX’ undeclared (first use in this function)
  415 |     cpy_r_r94 = CPyStatic_Player___MAX;
      |                 ^~~~~~~~~~~~~~~~~~~~~~
build/__native.c:415:17: note: each undeclared identifier is reported only once for each function it appears in
At top level:
cc1: note: unrecognized command-line option ‘-Wno-ignored-optimization-argument’ may have been intended to silence earlier diagnostics
cc1: note: unrecognized command-line option ‘-Wno-unknown-warning-option’ may have been intended to silence earlier diagnostics
cc1: note: unrecognized command-line option ‘-Wno-unused-command-line-argument’ may have been intended to silence earlier diagnostics
error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1

Your Environment

• Mypy version used: mypy 1.11.2 (compiled: yes)
• Mypy command-line flags: None
• Mypy configuration options from mypy.ini (and other config files): None
• Python version used: Python 3.12.3 (main, Sep 11 2024, 14:17:37) [GCC 13.2.0] on linux
• GCC version used: gcc (Ubuntu 13.2.0-23ubuntu4) 13.2.0

[Alir3z4]

I have a very similar problem;

from enum import Enum

class PreCommitMode(str, Enum):
    changed = "changed"
    staged = "staged"
    full = "full"

mode = PreCommitMode.changed

if mode in [PreCommitMode.changed, PreCommitMode.staged]:
    print(f"Hey {mode}")

Produces:

build/__native_2650c38b35f4f94cf2d8.c: In function ‘CPyDef_development___pre_commit’:
build/__native_2650c38b35f4f94cf2d8.c:10461:17: error: ‘CPyStatic_development___PreCommitMode___changed’ undeclared (first use in this function); did you mean ‘CPyType_development___PreCommitMode’?
10461 |     cpy_r_r45 = CPyStatic_development___PreCommitMode___changed;
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                 CPyType_development___PreCommitMode
build/__native_2650c38b35f4f94cf2d8.c:10461:17: note: each undeclared identifier is reported only once for each function it appears in
build/__native_2650c38b35f4f94cf2d8.c:10477:17: error: ‘CPyStatic_development___PreCommitMode___staged’ undeclared (first use in this function); did you mean ‘CPyType_development___PreCommitMode’?
10477 |     cpy_r_r48 = CPyStatic_development___PreCommitMode___staged;
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                 CPyType_development___PreCommitMode

[sterliakov]

The first snippet works fine in mypyc == 1.14.0 and newer, the second since 1.15.0 - these seem to be different issues, but both are fixed now. (#18426 and #18178)