Yes, I do use VSCode, but only for dabbling on Rust during plane/train travels. The language is not yet at a level it just fits on MS stack and is requested by our customers on their Requests For Proposals.
Regarding C# <-> Rust interoperability, it is very badly documented. I gave up on searching for it, and just used C# <-> C++/CX <-> Rust instead.
Or I am very bad searching for it.
extern/dllimport[1] Covers most of it. There's automatic conversion for CString/string and delegates as function pointers. If you need to go deeper than that there's the marshal namespace[2]. Going through C++/CX sounds really painful.
[1] - https://msdn.microsoft.com/en-us/library/e59b22c5.aspx
[2] - https://msdn.microsoft.com/en-us/library/system.runtime.inte...
Not for someone that knows C++ since C++ARM. :)
I am pretty comfortable with C# and native interop, my issue was trying to map Rust strings with .NET UTF-16 ones, including passing ownership from Rust to .NET side.
FWIW C# <-> Rust integration is really straightforward. You can actually pass delegates as C fn pointers and then treat them as a closures in Rust. Much less painful that I initially thought.