structured_data._adt.ordering.can_set_ordering() - Code Metrics - Inspection of "Merge pull request #49 from mwchase/3.8-only" - mwchase/python-structured-data - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 24a7f2...39d343 )

by Max

created 2020-02-05 21:59 UTC

structured_data._adt.ordering.can_set_ordering() A

↳ Parent: structured_data._adt.ordering

Complexity

Conditions

Size

Total Lines	5
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	4
dl	0
loc	5
rs	10
c	0
b	0
f	0
cc	2
nop	2

"""Helpers for reasoning about ordering methods."""

import typing


def ordering_options_are_valid(
    *, eq: bool, order: bool  # pylint: disable=invalid-name
) -> None:
    """Check constraint: we can't define order if we didn't define equality."""
    if order and not eq:
        raise ValueError("eq must be true if order is true")


def can_set_ordering(*, can_set: bool) -> bool:
    """Reduce cyclomatic complexity of the ``__init_subclass__`` methods."""
    if not can_set:
        raise ValueError("Can't add ordering methods if equality methods are provided.")
    return True


def raise_for_collision(collision: typing.Union[bool, None, str], name: str) -> None:
    """Create an informational message about ordering method collisions."""
    if collision:
        raise TypeError(
            f"Cannot overwrite attribute {collision} in class "
            f"{name}. Consider using functools.total_ordering"
        )


1			"""Helpers for reasoning about ordering methods."""
2
3			import typing
4
5
6			def ordering_options_are_valid(
7			*, eq: bool, order: bool # pylint: disable=invalid-name
8			) -> None:
9			"""Check constraint: we can't define order if we didn't define equality."""
10			if order and not eq:
11			raise ValueError("eq must be true if order is true")
12
13
14			def can_set_ordering(*, can_set: bool) -> bool:
15			"""Reduce cyclomatic complexity of the ``__init_subclass__`` methods."""
16			if not can_set:
17			raise ValueError("Can't add ordering methods if equality methods are provided.")
18			return True
19
20
21			def raise_for_collision(collision: typing.Union[bool, None, str], name: str) -> None:
22			"""Create an informational message about ordering method collisions."""
23			if collision:
24			raise TypeError(
25			f"Cannot overwrite attribute {collision} in class "
26			f"{name}. Consider using functools.total_ordering"
27			)
28

mwchase / python-structured-data

Push — master ( 24a7f2...39d343 )

structured_data._adt.ordering.can_set_ordering() A

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