diggsey / rnet

rnet

Easily call into Rust from C# or other .net langauges.

Usage

1. Add rnet::root!(); to your crate.
2. Use #[derive(Net)] on any structs to be shared with .net.
3. Apply the #[net] attribute to any standalone functions which should be callable from .net.
4. Build your rust project as a cdylib.
5. Generate C# bindings for your project:

   cargo install rnet-gen
   rnet-gen "<path to .dll/.so/.dylib>" > "<path to generated file.cs>"
   

6. Include the C# file in your .net project.
7. Add a link to the compiled rust library to your .net project, and set it to "Copy if newer".
8. Optional: Configure the above steps to run automatically as pre-build steps.

For languages other than C#, you'll need to build the exported C# file into its own class library, and then add a reference to that from a project of any .net language.

rnet's Issues

Implement Net, FromNet, ToNet for custom structs

Hey! I want to use a custom struct with RNet but I don't know how to implement these traits for mine. Can you explain me how to do?

Cannot use a SystemTime

I write a DLL with Rnet and I want to get a SystemTime in argument of my function. How can I do?

Maintainence Status

Hey @Diggsey , let me know if you still want to continue maintaining this project or if some member of the community could fork it and continue the maintenance.

There are some changes in the newest versions of Rust that need attention slint-ui/slint#3913 (comment)

let me know

just some questions

1. Is there a way to expose a struct to .NET where one of the fields does not implement the required traits? I'm not planning to make this field visible in the .NET side. I suppose I can make a global hashmap to store these fields and have these structs contain keys to index said map but I wonder if there is a better way to do this?

2. Is there a way to make functions that can accept any .NET type? I tried using generics but the macros didn't seem to like them.

3. Would you be open to a PR that adds the ability to generate another language than just C#? (F# to be precise). It isn't a huge deal if not as I can just make the C# file its own library but it would reduce some boilerplate and would make the functions nicer to call.

For a bit of context: I have a rust library which I want to expose to one of my F# projects. I'm currently in the "toying around/experiment" phase though.