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# 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
"""Utilities methods and classes for checkers.
Base id of standard checkers (used in msg and report ids):
01: base
02: classes
03: format
04: import
05: misc
06: variables
07: exceptions
08: similar
09: design_analysis
10: newstyle
11: typecheck
12: logging
13: string_format
14: string_constant
15: stdlib
16: python3 (This one was deleted but needs to be reserved for consistency with old messages)
17: refactoring
.
.
.
24: non-ascii-names
25: unicode
26: unsupported_version
27: private-import
28-50: not yet used: reserved for future internal checkers.
This file is not updated. Use
script/get_unused_message_id_category.py
to get the next free checker id.
51-99: perhaps used: reserved for external checkers
The raw_metrics checker has no number associated since it doesn't emit any
messages nor reports. XXX not true, emit a 07 report !
"""
from __future__ import annotations
import sys
from typing import TYPE_CHECKING
from pylint.checkers.base_checker import (
BaseChecker,
BaseRawFileChecker,
BaseTokenChecker,
)
from pylint.checkers.deprecated import DeprecatedMixin
from pylint.checkers.mapreduce_checker import MapReduceMixin
from pylint.utils import LinterStats, diff_string, register_plugins
if sys.version_info >= (3, 8):
from typing import Literal
else:
from typing_extensions import Literal
if TYPE_CHECKING:
from pylint.lint import PyLinter
def table_lines_from_stats(
stats: LinterStats,
old_stats: LinterStats | None,
stat_type: Literal["duplicated_lines", "message_types"],
) -> list[str]:
"""Get values listed in <columns> from <stats> and <old_stats>,
and return a formatted list of values.
The return value is designed to be given to a ureport.Table object
"""
lines: list[str] = []
if stat_type == "duplicated_lines":
new: list[tuple[str, int | float]] = [
("nb_duplicated_lines", stats.duplicated_lines["nb_duplicated_lines"]),
(
"percent_duplicated_lines",
stats.duplicated_lines["percent_duplicated_lines"],
),
]
if old_stats:
old: list[tuple[str, str | int | float]] = [
(
"nb_duplicated_lines",
old_stats.duplicated_lines["nb_duplicated_lines"],
),
(
"percent_duplicated_lines",
old_stats.duplicated_lines["percent_duplicated_lines"],
),
]
else:
old = [("nb_duplicated_lines", "NC"), ("percent_duplicated_lines", "NC")]
elif stat_type == "message_types":
new = [
("convention", stats.convention),
("refactor", stats.refactor),
("warning", stats.warning),
("error", stats.error),
]
if old_stats:
old = [
("convention", old_stats.convention),
("refactor", old_stats.refactor),
("warning", old_stats.warning),
("error", old_stats.error),
]
else:
old = [
("convention", "NC"),
("refactor", "NC"),
("warning", "NC"),
("error", "NC"),
]
for index, value in enumerate(new):
new_value = value[1]
old_value = old[index][1]
diff_str = (
diff_string(old_value, new_value)
if isinstance(old_value, float)
else old_value
)
new_str = f"{new_value:.3f}" if isinstance(new_value, float) else str(new_value)
old_str = f"{old_value:.3f}" if isinstance(old_value, float) else str(old_value)
lines.extend((value[0].replace("_", " "), new_str, old_str, diff_str)) # type: ignore[arg-type]
return lines
def initialize(linter: PyLinter) -> None:
"""Initialize linter with checkers in this package."""
register_plugins(linter, __path__[0])
__all__ = [
"BaseChecker",
"BaseTokenChecker",
"BaseRawFileChecker",
"initialize",
"MapReduceMixin",
"DeprecatedMixin",
"register_plugins",
]