def PutFieldToTLV(self,
tag,
val,
writer: tlv.TLVWriter,
debugPath: str = '?'):
if not self.IsArray:
self._PutSingleElementToTLV(tag, val, writer, debugPath)
return
if not isinstance(val, List):
raise ValueError(
f"Field {debugPath}.{self.Label} expected List[{self.Type}], but got {type(val)}"
)
writer.startArray(tag)
for i, v in enumerate(val):
self._PutSingleElementToTLV(None, v, writer, debugPath + f'[{i}]')
writer.endContainer()
def PutFieldToTLV(self,
tag,
val,
writer: tlv.TLVWriter,
debugPath: str = '?'):
if (val == NullValue):
if (GetUnionUnderlyingType(self.Type, Nullable) is None):
raise ValueError(
f"Field {debugPath}.{self.Label} was not nullable, but got a null"
)
writer.put(tag, None)
elif (val is None):
if (GetUnionUnderlyingType(self.Type, type(None)) is None):
raise ValueError(
f"Field {debugPath}.{self.Label} was not optional, but encountered None"
)
else:
#
# If it is an optional or nullable type, it's going to be a union.
# So, let's get at the 'real' type within that union before proceeding,
# since at this point, we're guarenteed to not get None or Null as values.
#
elementType = GetUnionUnderlyingType(self.Type)
if (elementType is None):
elementType = self.Type
if not isinstance(val, List):
self._PutSingleElementToTLV(tag, val, elementType, writer,
debugPath)
return
writer.startArray(tag)
# Get the type of the list. This is a generic, which has its sub-type information of the list element
# inside its type argument.
(elementType, ) = typing.get_args(elementType)
for i, v in enumerate(val):
self._PutSingleElementToTLV(None, v, elementType, writer,
debugPath + f'[{i}]')
writer.endContainer()