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# Copyright (c) 2010-2024 openpyxl
from .base import *
from .sequence import Sequence
class MetaStrict(type):
def __new__(cls, clsname, bases, methods):
for k, v in methods.items():
if isinstance(v, Descriptor):
v.name = k
return type.__new__(cls, clsname, bases, methods)
class Strict(metaclass=MetaStrict):
pass
class MetaSerialisable(type):
def __new__(cls, clsname, bases, methods):
attrs = []
nested = []
elements = []
namespaced = []
for k, v in methods.items():
if isinstance(v, Descriptor):
ns= getattr(v, 'namespace', None)
if ns:
namespaced.append((k, "{%s}%s" % (ns, k)))
if getattr(v, 'nested', False):
nested.append(k)
elements.append(k)
elif isinstance(v, Sequence):
elements.append(k)
elif isinstance(v, Typed):
if hasattr(v.expected_type, 'to_tree'):
elements.append(k)
elif isinstance(v.expected_type, tuple):
if any((hasattr(el, "to_tree") for el in v.expected_type)):
# don't bind elements as attrs
continue
else:
attrs.append(k)
else:
if not isinstance(v, Alias):
attrs.append(k)
if methods.get('__attrs__') is None:
methods['__attrs__'] = tuple(attrs)
methods['__namespaced__'] = tuple(namespaced)
if methods.get('__nested__') is None:
methods['__nested__'] = tuple(sorted(nested))
if methods.get('__elements__') is None:
methods['__elements__'] = tuple(sorted(elements))
return MetaStrict.__new__(cls, clsname, bases, methods)
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