IDL solution

[jwinarske]

What's the suggested pattern when using with IDL such as protobuf?

[fzyzcjy]

Maybe serialize it to Vec<u8> (Uint8LIst)?

[jwinarske]

Using https://pub.dev/packages/pbconv on the Dart side.

[fzyzcjy]

btw seems https://pub.dev/packages/protobuf is more widely used

[jwinarske]

Say I want to in the same project use gRPC. I include Tonic, and a proto file. Build.rs is used to generate Rust code from protobuf. How can I programmatically decorate the struct/enums/etc in the intermediate IDL output? I don't want to check in the intermediate code.

Example struct definition in intermediate code:

#[derive(Clone, PartialEq, ::prost::Message)]
pub struct Datapoint {
    /// Timestamp of the value
    #[prost(message, optional, tag = "1")]
    pub timestamp: ::core::option::Option<::prost_types::Timestamp>,
    /// values
    #[prost(
        oneof = "datapoint::Value",
        tags = "10, 11, 12, 13, 14, 15, 16, 17, 18, 21, 22, 23, 24, 25, 26, 27, 28"
    )]
    pub value: ::core::option::Option<datapoint::Value>,
}

[fzyzcjy]

I guess that looks like a question for the protobuf codegen lib?

[jwinarske]

I'm thinking a macro helper might be in order.

[fzyzcjy]

But, if you have a protobuf, why not just serialize it and send the serialized bytes via bridge

[jwinarske]

I'm looking for a zero copy solution.