def infer_from_python(value: Any):
"""
Convert pythonic value to ctypes buffer, type hint-aware.
:param value: pythonic value or (value, type_hint) tuple,
:return: bytes.
"""
if is_hinted(value):
value, data_type = value
else:
data_type = AnyDataObject
return data_type.from_python(value)
def infer_from_python(value: Any):
"""
Convert pythonic value to ctypes buffer, type hint-aware.
:param value: pythonic value or (value, type_hint) tuple,
:return: bytes.
"""
if is_hinted(value):
value, data_type = value
else:
data_type = AnyDataObject
return data_type.from_python(value)
def from_python(cls, value, type_id=None):
header_class = cls.build_header()
header = header_class()
length = len(value)
header.length = length
if hasattr(header, 'type_code'):
header.type_code = int.from_bytes(cls.type_code,
byteorder=PROTOCOL_BYTE_ORDER)
if hasattr(header, 'type'):
header.type = type_id
buffer = bytes(header)
for k, v in value.items():
if is_hinted(k):
buffer += k[1].from_python(k[0])
else:
buffer += AnyDataObject.from_python(k)
if is_hinted(v):
buffer += v[1].from_python(v[0])
else:
buffer += AnyDataObject.from_python(v)
return buffer
def from_python(self, value):
header_class = self.build_header()
header = header_class()
try:
length = len(value)
except TypeError:
value = [value]
length = 1
header.length = length
buffer = bytes(header)
for x in value:
if is_hinted(x):
buffer += x[1].from_python(x[0])
else:
buffer += super().from_python(x)
return buffer
def __unpack_hinted(value):
if is_hinted(value):
return value
return value, AnyDataObject