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from __future__ import annotations
import http
import logging
from typing import List, NewType, Optional, Tuple, Union
__all__ = [
"Data",
"LoggerLike",
"StatusLike",
"Origin",
"Subprotocol",
"ExtensionName",
"ExtensionParameter",
]
# Public types used in the signature of public APIs
Data = Union[str, bytes]
"""Types supported in a WebSocket message:
:class:`str` for a Text_ frame, :class:`bytes` for a Binary_.
.. _Text: https://www.rfc-editor.org/rfc/rfc6455.html#section-5.6
.. _Binary : https://www.rfc-editor.org/rfc/rfc6455.html#section-5.6
"""
LoggerLike = Union[logging.Logger, logging.LoggerAdapter]
"""Types accepted where a :class:`~logging.Logger` is expected."""
StatusLike = Union[http.HTTPStatus, int]
"""
Types accepted where an :class:`~http.HTTPStatus` is expected."""
Origin = NewType("Origin", str)
"""Value of a ``Origin`` header."""
Subprotocol = NewType("Subprotocol", str)
"""Subprotocol in a ``Sec-WebSocket-Protocol`` header."""
ExtensionName = NewType("ExtensionName", str)
"""Name of a WebSocket extension."""
ExtensionParameter = Tuple[str, Optional[str]]
"""Parameter of a WebSocket extension."""
# Private types
ExtensionHeader = Tuple[ExtensionName, List[ExtensionParameter]]
"""Extension in a ``Sec-WebSocket-Extensions`` header."""
ConnectionOption = NewType("ConnectionOption", str)
"""Connection option in a ``Connection`` header."""
UpgradeProtocol = NewType("UpgradeProtocol", str)
"""Upgrade protocol in an ``Upgrade`` header."""
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