Mypyc KeyError: mypy.nodes.MemberExpr

[CoolCat467]

Likely a duplicate of the same issue encountered in #17321, but posting because that issue was closed.

Bug Report

Mypyc seems to encounter an error when handling Literal[<anything>]

To Reproduce

base_io.py

from __future__ import annotations

from enum import Enum
from typing import Literal, TypeAlias


class StructFormat(str, Enum):
    """All possible write/read struct types.

    .. seealso:
        :module:`struct` module documentation.
    """

    BOOL = "?"
    CHAR = "c"
    BYTE = "b"
    UBYTE = "B"
    SHORT = "h"
    USHORT = "H"
    INT = "i"
    UINT = "I"
    LONG = "l"
    ULONG = "L"
    FLOAT = "f"
    DOUBLE = "d"
    HALFFLOAT = "e"
    LONGLONG = "q"
    ULONGLONG = "Q"


INT_FORMATS_TYPE: TypeAlias = Literal[
    StructFormat.BYTE,
    StructFormat.UBYTE,
    StructFormat.SHORT,
    StructFormat.USHORT,
    StructFormat.INT,
    StructFormat.UINT,
    StructFormat.LONG,
    StructFormat.ULONG,
    StructFormat.LONGLONG,
    StructFormat.ULONGLONG,
]

FLOAT_FORMATS_TYPE: TypeAlias = Literal[
    StructFormat.FLOAT,
    StructFormat.DOUBLE,
    StructFormat.HALFFLOAT,
]

mypyc base_io.py

Expected Behavior

No issues

Actual Behavior

Traceback (most recent call last):
base_io.py:32: KeyError: <mypy.nodes.MemberExpr object at 0x7038e01022a0>

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

[CoolCat467]

Closing in favor of mypyc/mypyc#1064