waPC messagepack codec

This crates contains common serialization and deserialization methods for communicating in and out of waPC modules.

waPC does not require MessagePack but it does require a communication contract between hosts and guests. The waPC CLI code generator uses this crate but you are free to use what you want.

Example

The following is a simple example of synchronous, bi-directional procedure calls between a WebAssembly host runtime and the guest module.

```rust use serde::{Deserialize, Serialize}; use wapc_codec::messagepack::{deserialize, serialize};

[derive(Deserialize, Serialize, Debug)]

struct Person { firstname: String, lastname: String, age: u8, }

pub fn main() -> Result<(), Box> { let person = Person { firstname: "Samuel".toowned(), lastname: "Clemens".toowned(), age: 49, };

println!("Original : {:?}", person);

let bytes = serialize(&person)?;

println!("Serialized messagepack bytes: {:?}", bytes);

let round_trip: Person = deserialize(&bytes)?;

println!("Deserialized : {:?}", round_trip);

Ok(()) } ```