python-benedict/benedict/dicts/base/base_dict.py

164 lines
4.5 KiB
Python

from benedict.core import clone as _clone
class BaseDict(dict):
_dict = None
_pointer = False
@classmethod
def _get_dict_or_value(cls, value):
value = value.dict() if isinstance(value, cls) else value
if isinstance(value, dict):
for key in value.keys():
key_val = value[key]
if isinstance(key_val, cls):
key_val = cls._get_dict_or_value(value[key])
value[key] = key_val
return value
def __init__(self, *args, **kwargs):
if len(args) == 1 and isinstance(args[0], dict):
self._dict = self._get_dict_or_value(args[0])
self._pointer = True
super().__init__(self._dict)
return
self._dict = None
self._pointer = False
super().__init__(*args, **kwargs)
def __bool__(self):
if self._pointer:
return bool(self._dict)
return len(self.keys()) > 0
def __contains__(self, key):
if self._pointer:
return key in self._dict
return super().__contains__(key)
def __deepcopy__(self, memo):
obj = self.__class__()
for key, value in self.items():
obj[key] = _clone(value, memo=memo)
return obj
def __delitem__(self, key):
if self._pointer:
del self._dict[key]
return
super().__delitem__(key)
def __eq__(self, other):
if self._pointer:
return self._dict == other
return super().__eq__(other)
def __getitem__(self, key):
if self._pointer:
return self._dict[key]
return super().__getitem__(key)
def __ior__(self, other):
if self._pointer:
return self._dict.__ior__(other)
return super().__ior__(other)
def __iter__(self):
if self._pointer:
return iter(self._dict)
return super().__iter__()
def __len__(self):
if self._pointer:
return len(self._dict)
return super().__len__()
def __or__(self, other):
if self._pointer:
return self._dict.__or__(other)
return super().__or__(other)
def __repr__(self):
if self._pointer:
return repr(self._dict)
return super().__repr__()
def __setitem__(self, key, value):
value = self._get_dict_or_value(value)
if self._pointer:
is_dict_item = key in self._dict and isinstance(self._dict[key], dict)
is_dict_value = isinstance(value, dict)
if is_dict_item and is_dict_value:
if self._dict[key] is value:
# prevent clearing dict instance when assigning value to itself. fix #294
return
self._dict[key].clear()
self._dict[key].update(value)
return
self._dict[key] = value
return
super().__setitem__(key, value)
def __setstate__(self, state):
self._dict = state["_dict"]
self._pointer = state["_pointer"]
def __str__(self):
if self._pointer:
return str(self._dict)
return super().__str__()
def clear(self):
if self._pointer:
self._dict.clear()
return
super().clear()
def copy(self):
if self._pointer:
return self._dict.copy()
return super().copy()
def dict(self):
if self._pointer:
return self._dict
return self
def get(self, key, default=None):
if self._pointer:
return self._dict.get(key, default)
return super().get(key, default)
def items(self):
if self._pointer:
return self._dict.items()
return super().items()
def keys(self):
if self._pointer:
return self._dict.keys()
return super().keys()
def pop(self, key, *args):
if self._pointer:
return self._dict.pop(key, *args)
return super().pop(key, *args)
def setdefault(self, key, default=None):
default = self._get_dict_or_value(default)
if self._pointer:
return self._dict.setdefault(key, default)
return super().setdefault(key, default)
def update(self, other):
other = self._get_dict_or_value(other)
if self._pointer:
self._dict.update(other)
return
super().update(other)
def values(self):
if self._pointer:
return self._dict.values()
return super().values()