# Copyright (c) 2025-2026 Buf Technologies, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
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# Small set of helpers and Python 3.10 compatibility shims
from __future__ import annotations

from typing import NoReturn as Never, TypeAlias

JsonPrimitive: TypeAlias = bool | int | float | str | None
JsonValue: TypeAlias = JsonPrimitive | list["JsonValue"] | dict[str, "JsonValue"]


def assert_never(value: Never) -> Never:
    msg = f"unexpected value: {value!r}"
    raise AssertionError(msg)