# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
# Copyright (c) https://github.com/PyCQA/pylint/blob/main/CONTRIBUTORS.txt
from __future__ import annotations
import abc
import warnings
from typing import TYPE_CHECKING, Any
if TYPE_CHECKING:
from pylint.lint import PyLinter
class MapReduceMixin(metaclass=abc.ABCMeta):
"""A mixin design to allow multi-process/threaded runs of a Checker."""
def __init__(self) -> None:
warnings.warn(
"MapReduceMixin has been deprecated and will be removed in pylint 3.0. "
"To make a checker reduce map data simply implement get_map_data and reduce_map_data.",
DeprecationWarning,
stacklevel=2,
)
@abc.abstractmethod
def get_map_data(self) -> Any:
"""Returns merge-able/reducible data that will be examined."""
@abc.abstractmethod
def reduce_map_data(self, linter: PyLinter, data: list[Any]) -> None:
"""For a given Checker, receives data for all mapped runs."""
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