binprot-rs

Bin_prot binary protocols in Rust

This crates provides bin_prot serialization and tries to be compatible with the OCaml version for similar types.

The examples directory includes a tiny RPC implementation compatible with OCaml Async_rpc. The Query message is defined as follows in OCaml as can be found in the implementation. ocaml module Query = struct type 'a needs_length = { tag : Rpc_tag.t ; version : int ; id : Query_id.t ; data : 'a } [@@deriving bin_io] type 'a t = 'a needs_length [@@deriving bin_read] end

The equivalent type using Rust would be: ```rust

[derive(BinProtRead, BinProtWrite)]

struct Query { rpc_tag: String, version: i64, id: i64, data: binprot::WithLen, } ```

This does not use serde (see serde-binprot) but instead implements the derive macro independently so as to provide better control on serialization. In particular polymorphic variants can be supported thanks to this.