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- # Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- # For details: https://github.com/pylint-dev/pylint/blob/main/LICENSE
- # Copyright (c) https://github.com/pylint-dev/pylint/blob/main/CONTRIBUTORS.txt
- """Check for use of while loops."""
- from __future__ import annotations
- from typing import TYPE_CHECKING
- from astroid import nodes
- from pylint.checkers import BaseChecker
- from pylint.checkers.utils import only_required_for_messages
- if TYPE_CHECKING:
- from pylint.lint import PyLinter
- class WhileChecker(BaseChecker):
- name = "while_used"
- msgs = {
- "W0149": (
- "Used `while` loop",
- "while-used",
- "Unbounded `while` loops can often be rewritten as bounded `for` loops. "
- "Exceptions can be made for cases such as event loops, listeners, etc.",
- )
- }
- @only_required_for_messages("while-used")
- def visit_while(self, node: nodes.While) -> None:
- self.add_message("while-used", node=node)
- def register(linter: PyLinter) -> None:
- linter.register_checker(WhileChecker(linter))
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