Coverage for /wheeldirectory/casa-6.7.0-12-py3.10.el8/lib/py/lib/python3.10/site-packages/casatools/__cerberus__/utils.py: 83%
54 statements
« prev ^ index » next coverage.py v7.6.4, created at 2024-11-01 07:19 +0000
« prev ^ index » next coverage.py v7.6.4, created at 2024-11-01 07:19 +0000
1from __future__ import absolute_import
3from collections.abc import Mapping, Sequence
5from casatools.__cerberus__.platform import _int_types, _str_type
8def compare_paths_lt(x, y):
9 for i in range(min(len(x), len(y))):
10 if isinstance(x[i], type(y[i])):
11 if x[i] != y[i]:
12 return x[i] < y[i]
13 elif isinstance(x[i], _int_types):
14 return True
15 elif isinstance(y[i], _int_types):
16 return False
17 return len(x) < len(y)
20def drop_item_from_tuple(t, i):
21 return t[:i] + t[i + 1:]
24def get_Validator_class():
25 global Validator
26 if 'Validator' not in globals():
27 from casatools.__cerberus__.validator import Validator
28 return Validator
31def mapping_hash(schema):
32 return hash(mapping_to_frozenset(schema))
35def mapping_to_frozenset(mapping):
36 """ Be aware that this treats any sequence type with the equal members as
37 equal. As it is used to identify equality of schemas, this can be
38 considered okay as definitions are semantically equal regardless the
39 container type. """
40 mapping = mapping.copy()
41 for key, value in mapping.items():
42 if isinstance(value, Mapping):
43 mapping[key] = mapping_to_frozenset(value)
44 elif isinstance(value, Sequence):
45 value = list(value)
46 for i, item in enumerate(value):
47 if isinstance(item, Mapping):
48 value[i] = mapping_to_frozenset(item)
49 mapping[key] = tuple(value)
50 return frozenset(mapping.items())
53def isclass(obj):
54 try:
55 issubclass(obj, object)
56 except TypeError:
57 return False
58 else:
59 return True
62def quote_string(value):
63 if isinstance(value, _str_type):
64 return '"%s"' % value
65 else:
66 return value
69def validator_factory(name, mixin=None, class_dict={}):
70 """ Dynamically create a :class:`~cerberus.Validator` subclass.
71 Docstrings of mixin-classes will be added to the resulting
72 class' one if ``__doc__`` is not in :obj:`class_dict`.
74 :param name: The name of the new class.
75 :type name: :class:`str`
76 :param mixin: Class(es) with mixin-methods.
77 :type mixin: :class:`tuple` of or a single :term:`class`
78 :param class_dict: Attributes for the new class.
79 :type class_dict: :class:`dict`
80 :return: The created class.
81 """
82 Validator = get_Validator_class()
84 if mixin is None:
85 bases = (Validator,)
86 elif isinstance(mixin, tuple):
87 bases = (Validator,) + mixin
88 else:
89 bases = (Validator, mixin)
91 docstrings = [x.__doc__ for x in bases if x.__doc__]
92 if len(docstrings) > 1 and '__doc__' not in class_dict:
93 class_dict.update({'__doc__': '\n'.join(docstrings)})
95 return type(name, bases, class_dict)