Wasmer: Add support for C#/.Net Core

[steskalja]

Is there any plan to add support for C#/.Net Core built wasm. Currently Microsoft is using the Blazor https://github.com/aspnet/Blazor project for C# wasm in the browser.

[syrusakbary]

Supporting C#/.Net Core would be super interesting!

We will research about it and post here our thoughts and findings after :)

[yowl]

Blazor uses mono, corert also has experimental support for wasm (not enough to run Blazor). Both use emscripten so will need the syscalls first.

[trusktr]

In the meantime, could a C# program just call the wasmer CLI to run a WASM module? But, how would it get or send any data to/from the module?

[syrusakbary]

The emscripten syscalls are now much more advanced, so it might be easier to run C# wasm-generated programs with Wasmer.

In the meantime, could a C# program just call the wasmer CLI to run a WASM module? But, how would it get or send any data to/from the module?

I think with the wasmer C bindings we could embed wasmer runtime into C#. In fact, I believe we should be able to emit a .dll to be used from C#.
I would love to provide guidance if someone wants to start working on it :)

[steskalja]

C# can access any native dlls through pinvoke. You would just need to load the dll and have entry points to the functions. Here is an example of what I am talking about: https://www.codeproject.com/Articles/403285/P-Invoke-Tutorial-Basics-Part

[syrusakbary]

This project creates the C# bindings for Wasmer, so anyone can use Wasmer easily from C# :)

https://github.com/migueldeicaza/WasmerSharp

Hope this is useful! I'm quite excited about the project 🙂

[syrusakbary]

Closing the issue as:

1. The bindings for .Net/C# are stable and usable
2. The wasm compilation from .Net is using Emscripten, and the output should be able to be run with Wasmer (as Wasmer already supports Emscripten)