Rust wasm template

This repo aims to be a very simple, yet complete, example of building a wasm binary using a Rust project as source, and then running that wasm within another Rust project.

How does it work

The example is a Cargo workspace comprised of 2 parts - a compiler and a runner. The compiler is the crate that is responsible for compiling Rust code to a wasm binary using wasm-pack. The runner takes that wasm binary, loads it into a Rust process, and executes functions defined in the binary. The runner uses wasmer.

How to run it

Prerequisites

You need to have the following installed:

• Install Rust (duh)
• Install wasm-pack
• Add the wasm compilation target - rustup target add wasm32-unknown-unknown

Then, follow these steps:

• cd inside compiler and run wasm-pack build
• cd back into the workspace root folder and run cargo run

If all goes well, you should see The answer is 42 printed to the console. Feel free to open an Issue if you're having trouble running this template.