plugy

plugy is a plugin system designed to enable the seamless integration of Rust-based plugins into your application. It provides a runtime environment for loading and executing plugins written in WebAssembly (Wasm), enabling dynamic extensibility and modularity in your Rust projects.

Features

• Load and execute plugins compiled to WASM.
• Flexible runtime management of plugins.
• Calls to plugin functions are async.
• Easy-to-use macros for generating plugin interfaces.

Getting Started

To use plugy in your Rust project, follow these steps:

1. Write your plugin trait:

```rust

[plugy::plugin]

trait Greeter { fn greet(&self) -> String; } ```

1. Write your first plugin implementation

```rust

[derive(Debug, Deserialize)]

struct FooPlugin;

[plugin_impl]

impl Greeter for FooPlugin { fn greet(&self) -> String { "Hello From Foo Plugin".to_owned() } } ```

Compile it!

cargo build --target wasm32-unknown-unknown

1. Import and run

```rust

[pluginimport(file = "target/wasm32-unknown-unknown/debug/fooplugin.wasm")]

struct FooPlugin;

[tokio::main]

async fn main() { let runtime = Runtime::>::new().unwrap(); let handle = runtime.load(FooPlugin).await.unwrap(); let res = handle.greet().await; assert_eq!(res, "Hello From Foo Plugin") } ```

And you are set!

Examples

Check out the examples directory for sample usage of plugy.

Milestones

| Status | Goal | Labels | | :----: | :-------------------------------------------------------------------------------------------------- | ---------- | | ✅ | accept multiple arity (n-ary) in plugin functions | complete | | ✅ | pass down context between host and guest | complete |

Functionality

Plugy comprises three fundamental crates, each serving a distinct role in crafting dynamic plugin systems with Rust and WebAssembly: - core: This crate houses essential components such as bitwise utilities and the guest module, forming the foundation of Plugy's functionality.

• runtime: The runtime crate orchestrates the execution of your plugin system, allowing seamless integration of plugins into your applications.

• macros: The macros crate offers a collection of macros that simplify the generation of bindings and interfaces, streamlining the process of working with dynamic plugins.

Contributing

Contributions to plugy are welcome! If you find a bug or want to propose a new feature, feel free to create an issue or submit a pull request.

Thanks to

• Wasmtime
• Bincode
• Serde

License

This project is licensed under the GNU General Public License.