SWI-Prolog -- protobuf_serialize_to

Availability::- use_module(library(protobufs)).(can be autoloaded)

[det]protobuf_serialize_to_codes(+Term:dict, -MessageType:atom, -WireCodes:list(int))

Process a Prolog term into bytes (list of int) that is the serialized form of a message (designated by MessageType).

Protoc must have been run (with the --swipl_out= option and the resulting top-level _pb.pl file loaded. For more details, see the "protoc" section of the overview documentation.

Fails if the term isn't of an appropriate form or if the appropriate meta-data from protoc hasn't been loaded, or if a field name is incorrect (and therefore nothing in the meta-data matches it).

`Term`	The Prolog form of the data, as nested dicts.
`MessageType`	Fully qualified message name (from the `.proto` file's `package` and `message`). For example, if the `package` is `google.protobuf` and the message is `FileDescriptorSet`, then you would use `'.google.protobuf.FileDescriptorSet'` or `'google.protobuf.FileDescriptorSet'`. If there's no package name, use e.g.: `'MyMessage` or `'.MyMessage'`. You can see the packages by looking at `protobufs:proto_meta_package(Pkg,File,_)` and the message names and fields by `protobufs:proto_meta_field_name('.google.protobuf.FileDescriptorSet', FieldNumber, FieldName, FqnName)` (the initial’.’is not optional for these facts, only for the top-level name given to protobuf_serialize_to_codes/3).
`WireCodes`	Wire format of the message, which can be output using `format('~s', [WireCodes])`.

Errors: - version_error(Module-Version) you need to recompile the Module with a newer version of protoc.
- existence_error if a field can't be found in the meta-data
See also: library(protobufs): Google's Protocol Buffers (section 1.3.1)
bug: - map fields don't get special treatment (but see protobuf_map_pairs/3).
- oneof is not checked for validity.