10788611744

Committed 10 Sep 2024 08:22AM UTC coverage: 95.71% (+0.7%) from 95.005%

Build # 10788611744

Build Type

push

github

Committed by

ilotoki0804

Commit Message

Add `__variants__` dunder

Run Details

5 of 5 new or added lines in 1 file covered. (100.0%)

13 existing lines in 3 files now uncovered.

1160 of 1212 relevant lines covered (95.71%)

0.96 hits per line

Source File
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94.29

/src/fieldenum/_utils.py

"""Internal utilities of fieldenum.

This functions and classes are not meant to be used by users,
which means they can be modified, deleted, or added without notice.
"""

from __future__ import annotations


def unpickle(cls, name: str, args, kwargs):
    Variant = getattr(cls, name)
    if args is None and kwargs is None:
        return Variant
    else:
        return Variant(*args, **kwargs)


class NotAllowed:
    def __init__(self, message: str | None = None, name: str | None = None):
        self.error_message = message
        if name is not None:
            self.name = name

    def __set_name__(self, owner, name):
        self.name = name

    def __get__(self, obj, objtype=None):
        if objtype is None:
            return self

        raise TypeError(self.error_message or f"The method/attribute {self.name!r} is not allowed to be used.")


class OneTimeSetter:
    def __set_name__(self, owner, name):
        self.name = name
        self.private_name = f"__original_{name}"

    def __get__(self, obj, objtype=None):
        return getattr(obj, self.private_name)

    def __set__(self, obj, value):
        if hasattr(obj, self.private_name):
            raise TypeError(f"Cannot mutate attribute `{self.name}` since it's frozen.")
        setattr(obj, self.private_name, value)


class ParamlessSingletonMeta(type):
    """Singleton implementation for class that does not have any parameter."""
    _instance = None

    def __call__(cls):
        if cls._instance is None:
            cls._instance = super().__call__()
        return cls._instance

1	"""Internal utilities of fieldenum.	1✔
2
3	This functions and classes are not meant to be used by users,
4	which means they can be modified, deleted, or added without notice.
5	"""
6
7	from __future__ import annotations	1✔
8
9
10	def unpickle(cls, name: str, args, kwargs):	1✔
11	Variant = getattr(cls, name)	1✔
12	if args is None and kwargs is None:	1✔
13	return Variant	1✔
14	else:
15	return Variant(args, *kwargs)	1✔
16
17
18	class NotAllowed:	1✔
19	def __init__(self, message: str \| None = None, name: str \| None = None):	1✔
20	self.error_message = message	1✔
21	if name is not None:	1✔
22	self.name = name	1✔
23
24	def __set_name__(self, owner, name):	1✔
UNCOV 25	self.name = name	×
26
27	def __get__(self, obj, objtype=None):	1✔
28	if objtype is None:	1✔
UNCOV 29	return self	×
30
31	raise TypeError(self.error_message or f"The method/attribute {self.name!r} is not allowed to be used.")	1✔
32
33
34	class OneTimeSetter:	1✔
35	def __set_name__(self, owner, name):	1✔
36	self.name = name	1✔
37	self.private_name = f"__original_{name}"	1✔
38
39	def __get__(self, obj, objtype=None):	1✔
40	return getattr(obj, self.private_name)	1✔
41
42	def __set__(self, obj, value):	1✔
43	if hasattr(obj, self.private_name):	1✔
44	raise TypeError(f"Cannot mutate attribute `{self.name}` since it's frozen.")	1✔
45	setattr(obj, self.private_name, value)	1✔
46
47
48	class ParamlessSingletonMeta(type):	1✔
49	"""Singleton implementation for class that does not have any parameter."""	1✔
50	_instance = None	1✔
51
52	def __call__(cls):	1✔
53	if cls._instance is None:	1✔
54	cls._instance = super().__call__()	1✔
55	return cls._instance	1✔

ilotoki0804 / fieldenum / 10788611744

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