Hi,
I encountered a problem when try to deserialize an Enum type using python.
My Enum type and capnp proto as follow:
definition in C++:
enum Case {
A = 0,
B = 1,
C = 2,
D = 255
};
proto:
enum Case {
A @0;
B @1;
C @2;
D @3;
}
python code to parse data:
encoded_msg = self.sock.recv()
dbg_msg = self.msg_capnp.Msg.from_bytes(encoded_msg)
msg_dict = dbg_msg.to_dict()
python crashes with following error messages:
File "capnp/lib/capnp.pyx", line 1108, in
capnp.lib.capnp._DynamicStructReader.to_dict (capnp/lib/capnp.cpp:24297)
File "capnp/lib/capnp.pyx", line 893, in capnp.lib.capnp._to_dict
(capnp/lib/capnp.cpp:19834)
File "capnp/lib/capnp.pyx", line 899, in capnp.lib.capnp._to_dict
(capnp/lib/capnp.cpp:20017)
File "capnp/lib/capnp.pyx", line 863, in capnp.lib.capnp._to_dict
(capnp/lib/capnp.cpp:19215)
File "capnp/lib/capnp.pyx", line 899, in capnp.lib.capnp._to_dict
(capnp/lib/capnp.cpp:20017)
File "capnp/lib/capnp.pyx", line 899, in capnp.lib.capnp._to_dict
(capnp/lib/capnp.cpp:20017)
File "capnp/lib/capnp.pyx", line 907, in capnp.lib.capnp._to_dict
(capnp/lib/capnp.cpp:20140)
File "capnp/lib/capnp.pyx", line 929, in
capnp.lib.capnp._DynamicEnum._as_str (capnp/lib/capnp.cpp:20509)
RuntimeError: Member was null.
It seems that python try to find a matching string for the given value, but
if my Enum type is Case::D, it can't find any.
As my Enum has to be defined in this way, and capn proto member have to use
continuous value, then how to let my python code works?
Cheers,
Hong
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