ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: opt / cloudlinux / venv / lib / python3.11 / site-packages / pylint / checkers

# 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

from typing import TYPE_CHECKING

from astroid import nodes

from pylint.checkers import BaseChecker
from pylint.interfaces import HIGH

if TYPE_CHECKING:
    from pylint.lint import PyLinter

COMPARISON_OP = frozenset(("<", "<=", ">", ">=", "!=", "=="))
IDENTITY_OP = frozenset(("is", "is not"))
MEMBERSHIP_OP = frozenset(("in", "not in"))

class BadChainedComparisonChecker(BaseChecker):
    """Checks for unintentional usage of chained comparison."""

name = "bad-chained-comparison"
    msgs = {
        "W3601": (
            "Suspicious %s-part chained comparison using semantically incompatible operators (%s)",
            "bad-chained-comparison",
            "Used when there is a chained comparison where one expression is part "
            "of two comparisons that belong to different semantic groups "
            '("<" does not mean the same thing as "is", chaining them in '
            '"0 < x is None" is probably a mistake).',
        )
    }

def _has_diff_semantic_groups(self, operators: list[str]) -> bool:
        # Check if comparison operators are in the same semantic group
        for semantic_group in (COMPARISON_OP, IDENTITY_OP, MEMBERSHIP_OP):
            if operators[0] in semantic_group:
                group = semantic_group
        return not all(o in group for o in operators)

def visit_compare(self, node: nodes.Compare) -> None:
        operators = sorted({op[0] for op in node.ops})
        if self._has_diff_semantic_groups(operators):
            num_parts = f"{len(node.ops)}"
            incompatibles = (
                ", ".join(f"'{o}'" for o in operators[:-1]) + f" and '{operators[-1]}'"
            )
            self.add_message(
                "bad-chained-comparison",
                node=node,
                args=(num_parts, incompatibles),
                confidence=HIGH,
            )

def register(linter: PyLinter) -> None:
    linter.register_checker(BadChainedComparisonChecker(linter))

[-] async.py [open]
[+] ..
[-] bad_chained_comparison.py [open]
[-] design_analysis.py [open]
[-] format.py [open]
[+] __pycache__
[-] logging.py [open]
[-] misc.py [open]
[-] dunder_methods.py [open]
[-] unsupported_version.py [open]
[+] refactoring
[-] raw_metrics.py [open]
[-] mapreduce_checker.py [open]
[+] classes
[-] nested_min_max.py [open]
[-] threading_checker.py [open]
[-] similar.py [open]
[-] method_args.py [open]
[-] unicode.py [open]
[-] typecheck.py [open]
[-] non_ascii_names.py [open]
[-] spelling.py [open]
[-] deprecated.py [open]
[-] lambda_expressions.py [open]
[-] base_checker.py [open]
[-] utils.py [open]
[-] variables.py [open]
[+] base
[-] __init__.py [open]
[-] ellipsis_checker.py [open]
[-] newstyle.py [open]
[-] strings.py [open]
[-] exceptions.py [open]
[-] imports.py [open]
[-] stdlib.py [open]
[-] modified_iterating_checker.py [open]