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protobuf.py
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1278 lines (1154 loc) · 46.6 KB
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##################################################################################
#
# Pythonic class wrappers around protobuf classes that enables traversing
# and modifying the protobuf message structure much like one can in JavaScript.
# For example, to get a region value from the composite's spec:
#
# region = request.observed.composite.resource.spec.region
#
# If any item in the path to the field does not exist an "Unknown" object is returned.
# To set a field in the composite status:
#
# response.desired.composite.resource.status.homepage.url = 'https://for.example.com'
#
# Here all items in the path to the field that do not exist will be created.
#
##################################################################################
import base64
import datetime
import google.protobuf.struct_pb2
import json
import sys
import yaml
_Unknown = object()
append = sys.maxsize
def Map(**kwargs):
return Value(None, None, kwargs)
def List(*args):
return Value(None, None, args)
def Unknown():
return Value(None, None)
def Yaml(string, readOnly=None):
if isinstance(string, (FieldMessage, Value)):
string = str(string)
return Value(None, None, yaml.safe_load(string), readOnly)
def Json(string, readOnly=None):
if isinstance(string, (FieldMessage, Value)):
string = str(string)
return Value(None, None, json.loads(string), readOnly)
def B64Encode(string):
if isinstance(string, (FieldMessage, Value)):
string = str(string)
return base64.b64encode(string.encode('utf-8')).decode('utf-8')
def B64Decode(string):
if isinstance(string, (FieldMessage, Value)):
string = str(string)
return base64.b64decode(string.encode('utf-8')).decode('utf-8')
B64Decode = lambda s: base64.b64decode(s.encode('utf-8')).decode('utf-8')
class Message:
def __init__(self, parent, key, descriptor, message=_Unknown, readOnly=False):
self.__dict__['_parent'] = parent
self.__dict__['_key'] = key
self.__dict__['_descriptor'] = descriptor
self.__dict__['_message'] = message
self.__dict__['_readOnly'] = readOnly
self.__dict__['_cache'] = {}
def __getattr__(self, key):
return self[key]
def __getitem__(self, key):
if key in self._cache:
return self._cache[key]
field = self._descriptor.fields_by_name.get(key)
if not field:
raise AttributeError(obj=self, name=key)
if self._message is _Unknown:
value = _Unknown
else:
value = getattr(self._message, key)
if value is _Unknown and field.has_default_value:
value = field.default_value
if field.label == field.LABEL_REPEATED:
if field.type == field.TYPE_MESSAGE and field.message_type.GetOptions().map_entry:
value = MapMessage(self, key, field.message_type.fields_by_name['value'], value, self._readOnly)
else:
value = RepeatedMessage(self, key, field, value, self._readOnly)
elif field.type == field.TYPE_MESSAGE:
if field.message_type.name in ('Struct', 'ListValue'):
value = Value(self, key, value, self._readOnly)
else:
value = Message(self, key, field.message_type, value, self._readOnly)
else:
value = FieldMessage(self, key, field.type, value)
self._cache[key] = value
return value
def __bool__(self):
return self._message is not _Unknown
def __len__(self):
return len(self._descriptor.fields)
def __contains__(self, key):
return key in self._descriptor.fields_by_name
def __iter__(self):
for key in sorted(self._descriptor.fields_by_name):
yield key, self[key]
def __hash__(self):
if self._message is not _Unknown:
return hash(tuple(hash(item) for item in sorted(iter(self), key=lambda item: item[0])))
return 0
def __eq__(self, other):
if not isinstance(other, Message):
return False
if self._descriptor.full_name != other._descriptor.full_name:
return False
if self._message is _Unknown:
return other._message is _Unknown
elif other._message is _Unknown:
return False
if len(self) != len(other):
return False
for key, value in self:
if key not in other:
return False
if value != other[key]:
return False
return True
def __str__(self):
return format(self)
def __format__(self, spec='yaml'):
return _formatObject(self, spec)
def _fullName(self, key=None):
if self._key is not None:
if self._parent is not None:
name = self._parent._fullName(self._key)
else:
name = str(self._key)
if key is not None:
if '.' in key:
name += f"[{key}]"
else:
name += f".{key}"
return name
if key is not None:
return str(key)
return ''
def _create_child(self, key):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._message is _Unknown:
self.__dict__['_message'] = self._parent._create_child(self._key)
return getattr(self._message, key)
def __call__(self, **kwargs):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._message is _Unknown:
self.__dict__['_message'] = self._parent._create_child(self._key)
self._message.Clear()
self._cache.clear()
for key, value in kwargs.items():
self[key] = value
return self
def __setattr__(self, key, value):
self[key] = value
def __setitem__(self, key, value):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if key not in self._descriptor.fields_by_name:
raise AttributeError(obj=self, name=key)
field = self._descriptor.fields_by_name[key]
if self._message is _Unknown:
self.__dict__['_message'] = self._parent._create_child(self._key)
if isinstance(value, Message):
value = value._message
elif isinstance(value, (MapMessage, RepeatedMessage)):
value = value._messages
elif isinstance(value, FieldMessage):
value = value._value
elif isinstance(value, Value):
value = value._raw
if field.type == field.TYPE_BYTES and isinstance(value, str):
value = value.encode('utf-8')
setattr(self._message, key, value)
self._cache.pop(key, None)
def __delattr__(self, key):
del self[key]
def __delitem__(self, key):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if key not in self._descriptor.fields_by_name:
raise AttributeError(obj=self, name=key)
if self._message is not _Unknown:
self._message.ClearField(key)
self._cache.pop(key, None)
class MapMessage:
def __init__(self, parent, key, field, messages=_Unknown, readOnly=False):
self.__dict__['_parent'] = parent
self.__dict__['_key'] = key
self.__dict__['_field'] = field
self.__dict__['_messages'] = messages
self.__dict__['_readOnly'] = readOnly
self.__dict__['_cache'] = {}
def __getattr__(self, key):
return self[key]
def __getitem__(self, key):
if key in self._cache:
return self._cache[key]
if self._messages is _Unknown or key not in self._messages:
value = _Unknown
else:
value = self._messages[key]
if value is None and self._field.has_default_value:
value = self._field.default_value
if self._field.type == self._field.TYPE_MESSAGE:
if self._field.message_type.name in ('Struct', 'ListValue'):
value = Value(self, key, value, self._readOnly)
else:
value = Message(self, key, self._field.message_type, value, self._readOnly)
else:
value = FieldMessage(self, key, self._field.type, value)
self._cache[key] = value
return value
def __bool__(self):
return self._messages is not _Unknown
def __len__(self):
return 0 if self._messages is _Unknown else len(self._messages)
def __contains__(self, key):
return self._messages is not _Unknown and key in self._messages
def __iter__(self):
if self._messages is not _Unknown:
for key in sorted(self._messages):
yield key, self[key]
def __hash__(self):
if self._nessages is not None:
return hash(tuple(hash(item) for item in sorted(iter(self), key=lambda item: item[0])))
return 0
def __eq__(self, other):
if not isinstance(other, MapMessage):
return False
if self._field.type != other._field.type:
return False
if self._field.type == self._field.TYPE_MESSAGE:
if self._field.message_type.full_name != other._field.message_type.full_name:
return False
if self._messages is _Unknown:
return other._messages is _Unknown
elif other._messages is _Unknown:
return False
if len(self) != len(other):
return False
for key, value in self:
if key not in other:
return False
if value != other[key]:
return False
return True
def __str__(self):
return format(self)
def __format__(self, spec='yaml'):
return _formatObject(self, spec)
def _fullName(self, key=None):
if self._key is not None:
if self._parent is not None:
name = self._parent._fullName(self._key)
else:
name = str(self._key)
if key is not None:
if '.' in key:
name += f"[{key}]"
else:
name += f".{key}"
return name
if key is not None:
return str(key)
return ''
def _create_child(self, key):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is _Unknown:
self.__dict__['_messages'] = self._parent._create_child(self._key)
return self._messages[key]
def __call__(self, **kwargs):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is _Unknown:
self.__dict__['_messages'] = self._parent._create_child(self._key)
self._messages.clear()
self._cache.clear()
for key, value in kwargs.items():
self[key] = value
return self
def __setattr__(self, key, message):
self[key] = message
def __setitem__(self, key, message):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is _Unknown:
self._messages = self._parent._create_child(self._key)
if isinstance(message, Message):
message = message._message
elif isinstance(message, (MapMessage, RepeatedMessage)):
message = message._messages
elif isinstance(message, FieldMessage):
message = message._value
elif isinstance(message, Value):
message = message._raw
if self._field.type == self._field.TYPE_BYTES and isinstance(message, str):
message = message.encode('utf-8')
self._messages[key] = message
self._cache.pop(key, None)
def __delattr__(self, key):
del self[key]
def __delitem__(self, key):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is not _Unknown:
if key in self._messages:
del self._messages[key]
self._cache.pop(key, None)
class RepeatedMessage:
def __init__(self, parent, key, field, messages=_Unknown, readOnly=False):
self._parent = parent
self._key = key
self._field = field
self._messages = messages
self._readOnly = readOnly
self._cache = {}
def __getitem__(self, key):
if key in self._cache:
return self._cache[key]
if self._messages is _Unknown or key >= len(self._messages):
value = _Unknown
else:
value = self._messages[key]
if value is None and self._field.has_default_value:
value = self._field.default_value
if self._field.type == self._field.TYPE_MESSAGE:
if self._field.message_type.name in ('Struct', 'ListValue'):
value = Value(self, key, value, self._readOnly)
else:
value = Message(self, key, self._field.message_type, value, self._readOnly)
else:
value = FieldMessage(self, key, self._field.type, value)
self._cache[key] = value
return value
def __bool__(self):
return self._messages is not _Unknown
def __len__(self):
return 0 if self._messages is _Unknown else len(self._messages)
def __contains__(self, value):
if self._messages is not _Unknown:
for message in self:
if value == message:
return True
return False
def __iter__(self):
if self._messages is not _Unknown:
for ix in range(len(self._messages)):
yield self[ix]
def __hash__(self):
if self._messages is not _Unknown:
return hash(tuple(hash(item) for item in self))
return 0
def __eq__(self, other):
if not isinstance(other, RepeatedMessage):
return False
if self._field.type != other._field.type:
return False
if self._field.type == self._field.TYPE_MESSAGE:
if self._field.message_type.full_name != other._field.message_type.full_name:
return False
if self._messages is _Unknown:
return other._messages is _Unknown
elif other._messages is _Unknown:
return False
if len(self) != len(other):
return False
for ix, value in enumerate(self):
if value != other[ix]:
return False
return True
def __str__(self):
return format(self)
def __format__(self, spec='yaml'):
return _formatObject(self, spec)
def _fullName(self, key=None):
if self._key is not None:
if self._parent is not None:
name = self._parent._fullName(self._key)
else:
name = str(self._key)
if key is not None:
name += f"[{key}]"
return name
if key is not None:
return str(key)
return ''
def _create_child(self, key):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is _Unknown:
self.__dict__['_messages'] = self._parent._create_child(self._key)
while key >= len(self._messages):
self._messages.add()
return self._messages[key]
def __call__(self, *args):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is _Unknown:
self.__dict__['_messages'] = self._parent._create_child(self._key)
self._messages.clear()
self._cache.clear()
for arg in args:
self.append(arg)
return self
def __setitem__(self, key, message):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is _Unknown:
self._messages = self._parent._create_child(self._key)
if key < 0:
key = len(self._messages) + key
if isinstance(message, Message):
message = message._message
elif isinstance(message, (MapMessage, RepeatedMessage)):
message = message._messages
elif isinstance(message, FieldMessage):
message = message._value
elif isinstance(message, Value):
message = message._raw
if self._field.type == self._field.TYPE_BYTES and isinstance(message, str):
message = message.encode('utf-8')
if key >= len(self._messages):
self._messages.append(message)
else:
self._messages[key] = message
self._cache.pop(key, None)
def __delitem__(self, key):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is not _Unknown:
del self._messages[key]
self._cache.pop(key, None)
def append(self, message=_Unknown):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if self._messages is _Unknown:
self._messages = self._parent._create_child(self._key)
if message is _Unknown:
message = self._messages.add()
else:
message = self._messages.append(message)
return self[len(self._messages) - 1]
class FieldMessage:
def __init__(self, parent, key, kind, value):
self.__dict__['_parent'] = parent
self.__dict__['_key'] = key
self.__dict__['_kind'] = kind
self.__dict__['_value'] = value
def __bool__(self):
return bool(self._value)
def __len__(self):
return len(self._value)
def __contains__(self, key):
return key in self._value
def __hash__(self):
return hash(self._value)
def __eq__(self, other):
if isinstance(other, FieldMessage):
return self._value == other._value
return self._value == other
def __str__(self):
return str(self._value)
def __format__(self, spec=''):
return format(self._value, spec)
def __int__(self):
return int(self._value)
def __float__(self):
return float(self._value)
def _fullName(self, key=None):
if self._key is not None:
if self._parent is not None:
name = self._parent._fullName(self._key)
else:
name = str(self._key)
if key is not None:
if '.' in key:
name += f"[{key}]"
else:
name += f".{key}"
return name
if key is not None:
return str(key)
return ''
class ProtobufValue:
@property
def _protobuf_value(self):
return None
class Value:
def __init__(self, parent, key, value=_Unknown, readOnly=None):
self.__dict__['_parent'] = parent
self.__dict__['_key'] = key
self.__dict__['_dependencies'] = {}
self.__dict__['_unknowns'] = {}
self.__dict__['_cache'] = {}
self.__dict__['_readOnly'] = None
if isinstance(value, (google.protobuf.struct_pb2.Value, google.protobuf.struct_pb2.Struct, google.protobuf.struct_pb2.ListValue)) or value is _Unknown:
self.__dict__['_value'] = value
else:
self.__dict__['_value'] = google.protobuf.struct_pb2.Value()
if value is None:
self._value.null_value = 0
elif isinstance(value, dict):
self._value.struct_value.Clear()
for k, v in value.items():
self[k] = v
elif isinstance(value, (tuple, list)):
self._value.list_value.Clear()
for ix, v in enumerate(value):
self[ix] = v
elif isinstance(value, bool): # Must be before number check
self._value.bool_value = value
elif isinstance(value, (int, float)):
self._value.number_value = value
elif isinstance(value, str):
self._value.string_value = value
else:
raise ValueError(f"Unexpected Value type: {value.__class__}")
self.__dict__['_readOnly'] = readOnly
def __getattr__(self, key):
return self[key]
def __getitem__(self, key):
if key in self._cache:
return self._cache[key]
if key in self._unknowns:
return self._unknowns[key]
if isinstance(key, str):
match self._kind:
case 'struct_value':
value = self._value.struct_value.fields.get(key, _Unknown)
case 'Struct':
value = self._value.fields.get(key, _Unknown)
case 'Unknown':
value = _Unknown
case _:
raise ValueError(f"Invalid key \"{key}\" for kind: {self._kind}")
elif isinstance(key, int):
match self._kind:
case 'list_value':
if key < len(self._value.list_value.values):
value = self._value.list_value.values[key]
else:
value = _Unknown
case 'ListValue':
if key < len(self._value.values):
value = self._value.values[key]
else:
value = _Unknown
case 'Unknown':
value = _Unknown
case _:
raise ValueError(f"Invalid key \"{key}\" for kind: {self._kind}")
else:
raise ValueError(f"Unexpected key type: {key.__class__}")
value = Value(self, key, value, self._readOnly)
self._cache[key] = value
return value
def __bool__(self):
return not self._isUnknown
def __len__(self):
match self._kind:
case 'struct_value':
return len(self._value.struct_value.fields) + len(self._unknowns)
case 'Struct':
return len(self._value.fields) + len(self._unknowns)
case 'list_value':
return len(self._value.list_value.values) + len(self._unknowns)
case 'ListValue':
return len(self._value.values) + len(self._unknowns)
return 0
def __contains__(self, item):
match self._kind:
case 'struct_value':
return item in self._value.struct_value.fields or item in self._unknowns
case 'Struct':
return item in self._value.fields or item in self._unknowns
case 'list_value' | 'ListValue':
for value in self:
if item == value:
return True
return False
def __iter__(self):
match self._kind:
case 'struct_value':
for key in sorted(set(self._value.struct_value.fields) | set(self._unknowns.keys())):
yield key, self[key]
case 'Struct':
for key in sorted(set(self._value.fields) | set(self._unknowns.keys())):
yield key, self[key]
case 'list_value':
for ix in range(len(self._value.list_value.values)):
yield self[ix]
for ix in sorted(self._unknowns.keys()):
if ix >= len(self._value.list_value.values):
yield self[ix]
case 'ListValue':
for ix in range(len(self._value.values)):
yield self[ix]
for ix in sorted(self._unknowns.keys()):
if ix >= len(self._value.values):
yield self[ix]
def __hash__(self):
match self._kind:
case 'struct_value' | 'Struct':
return hash(tuple(hash(item) for item in sorted(iter(self), key=lambda item: item[0])))
case 'list_value' | 'ListValue':
return hash(tuple(hash(item) for item in self))
case 'string_value':
return hash(self._value.string_value)
case 'null_value':
return hash(None)
case 'number_value':
return hash(self._value.number_value)
case 'bool_value':
return hash(self._value.bool_value)
return 0
def __eq__(self, other):
kind = self._kind
if isinstance(other, Value) and other._kind != kind:
return False
match kind:
case 'struct_value' | 'Struct':
if not isinstance(other, (Value, dict)):
return False
if len(self) != len(other):
return False
for key, value in self:
if key not in other:
return False
if value != other[key]:
return False
return True
case 'list_value' | 'ListValue':
if not isinstance(other, (Value, tuple, list)):
return False
if len(self) != len(other):
return False
for ix, value in enumerate(self):
if value != other[ix]:
return False
return True
case 'Unknown':
if isinstance(other, Value):
return other._isUnknown
return False
case 'string_value':
if isinstance(other, Value):
return self._value.string_value == other._value.string_value
if isinstance(other, str):
return self._value.string_value == other
return False
case 'null_value':
if isinstance(other, Value):
return True
return other is None
case 'number_value':
if isinstance(other, Value):
return self._value.number_value == other._value.number_value
if isinstance(other, (int, float)):
return self._value.number_value == other
return False
case 'bool_value':
if isinstance(other, Value):
return self._value.bool_value == other._value.bool_value
if isinstance(other, bool):
return self._value.bool_value == other
return False
return False
def __str__(self):
return format(self, '')
def __format__(self, spec='yaml'):
if not spec:
match self._kind:
case 'Unknown':
return '<<UNKNOWN>>'
case 'string_value':
return self._value.string_value
case 'null_value':
return 'null'
case 'number_value':
value = self._value.number_value
if value.is_integer():
value = int(value)
return str(value)
case 'bool_value':
return 'true' if self._value.bool_value else 'false'
return _formatObject(self, spec)
def __int__(self):
kind = self._kind
match kind:
case 'string_value':
return int(self._value.string_value)
case 'number_value':
return int(self._value.number_value)
case 'bool_value':
return int(self._value.bool_value)
case 'Unknown':
return 0
raise TypeError(f"Cannot convert kind to integer: {kind}")
def __float__(self):
kind = self._kind
match kind:
case 'string_value':
return float(self._value.string_value)
case 'number_value':
return float(self._value.number_value)
case 'bool_value':
return float(self._value.bool_value)
case 'Unknown':
return 0.0
raise TypeError(f"Cannot convert kind to float: {kind}")
def _fullName(self, key=None):
if self._key is not None:
if self._parent is not None:
name = self._parent._fullName(self._key)
else:
name = str(self._key)
if key is not None:
if self._isMap:
if key.isidentifier():
name += f".{key}"
else:
name += f"['{key}']"
elif self._isList:
name += f"[{key}]"
else:
if isinstance(key, int):
name += f"[{key}]"
else:
if '.' in key:
name += f"[{key}]"
else:
name += f".{key}"
return name
if key is not None:
return str(key)
return ''
def __call__(self, *args, **kwargs):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
self.__dict__['_value'] = google.protobuf.struct_pb2.Value()
self._cache.clear()
self._dependencies.clear()
self._unknowns.clear()
if len(kwargs):
if len(args):
raise ValueError('Connect specify both kwargs and args')
for key, value in kwargs.items():
self[key] = value
elif len(args):
for key in range(len(args)):
self[key] = args[key]
return self
def __setattr__(self, key, value):
self[key] = value
def __setitem__(self, key, value):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
if isinstance(key, str):
if self._ensure_map() == 'struct_value':
values = self._value.struct_value.fields
else:
values = self._value.fields
elif isinstance(key, int):
if self._ensure_list() == 'list_value':
values = self._value.list_value.values
else:
values = self._value.values
if key == append:
key = len(values)
elif key < 0:
key = len(values) + key
while key >= len(values):
values.add()
else:
raise ValueError('Unexpected key type')
self._cache.pop(key, None)
self._dependencies.pop(key, None)
self._unknowns.pop(key, None)
if isinstance(value, ProtobufValue):
value = value._protobuf_value
if value is None:
values[key].null_value = 0
elif isinstance(value, bool): # Must be before int check
values[key].bool_value = value
elif isinstance(value, str):
values[key].string_value = value
elif isinstance(value, (int, float)):
values[key].number_value = value
elif isinstance(value, dict):
values[key].struct_value.Clear()
for k, v in value.items():
self[key][k] = v
elif isinstance(value, (list, tuple)):
values[key].list_value.Clear()
for ix, v in enumerate(value):
self[key][ix] = v
elif isinstance(value, FieldMessage):
self._dependencies[key] = value
if isinstance(value._value, str):
values[key].string_value = value._value
elif isinstance(value._value, bytes):
values[key].string_value = value._value.decode('utf-8')
elif value._value is None:
values[key].null_value = value._value.null_value
elif isinstance(value._value, (int, float)):
values[key].number_value = value._value
elif isinstance(value._value, bool):
values[key].bool_value = value._value
elif value._value is _Unknown:
self._setUnknown(key, value)
else:
raise ValueError(f"Unexpected field type: {value._value.__class__}")
elif isinstance(value, Value):
self._dependencies[key] = value
match value._kind:
case 'struct_value' | 'Struct':
values[key].struct_value.Clear()
for k, v in value:
self[key][k] = v
case 'list_value' | 'ListValue':
values[key].list_value.Clear()
for ix, v in enumerate(value):
self[key][ix] = v
case 'string_value':
values[key].string_value = value._value.string_value
case 'null_value':
values[key].null_value = value._value.null_value
case 'number_value':
values[key].number_value = value._value.number_value
case 'bool_value':
values[key].bool_value = value._value.bool_value
case 'Unknown':
self._setUnknown(key, value)
case _:
raise ValueError(f"Unexpected value kind: {value._kind}")
else:
raise ValueError(f"Unexpected type: {value.__class__}")
@property
def _raw(self):
match self._kind:
case 'struct_value':
return self._value.struct_value
case 'list_value':
return self._value.list_value
case 'string_value':
return self._value.string_value
case 'null_value':
return self._value.null_value
case 'number_value':
return self._value.number_value
case 'bool_value':
return self._value.bool_value
case 'Struct' | 'ListValue':
return self._value
case 'Unknown':
return _Unknown
def _setUnknown(self, key, value):
self._dependencies.pop(key, None)
self._unknowns[key] = value
match self._kind:
case 'struct_value':
if key in self._value.struct_value.fields:
del self._value.struct_value[key]
case 'Struct':
if key in self._value.fields:
del self._value[key]
case 'list_value':
if key < len(self._value.list_value.values):
self._value.list_value.values[key].Clear()
for ix in reversed(range(len(self._value.list_value.values))):
if ix not in self._unknowns:
break
del self._value.list_value[ix]
case 'ListValue':
if key < len(self._value.values):
self._value.values[key].Clear()
for ix in reversed(range(len(self._value.values))):
if ix not in self._unknowns:
break
del self._value[ix]
def __delattr__(self, key):
del self[key]
def __delitem__(self, key):
if self._readOnly:
raise ValueError(f"{self._readOnly} is read only")
kind = self._kind
if kind == 'Unknown':
return
if isinstance(key, str):
match kind:
case 'struct_value':
if key in self._value.struct_value.fields:
del self._value.struct_value[key]
case 'Struct':
if key in self._value.fields:
del self._value[key]
case _:
raise ValueError(f"Invalid key \"{key}\" for kind: {self._kind}")
self._cache.pop(key, None)
self._dependencies.pop(key, None)
self._unknowns.pop(key, None)
elif isinstance(key, int):