ClosedTypeHierarchyDiagnosticSuppressor VS bflat

It's not the best solution, but an analyzer like [0] covers most of the cases for reference types. For enums and struct DUs in general we'll have to wait for language (or even runtime) support.

[0] https://github.com/shuebner/ClosedTypeHierarchyDiagnosticSup...

I don't think you can get around downcasting though, since pattern matching on type is also just that. You can however make it somehwat safer with this nuget package, for as long as csharp doesn't support discriminated unions natively yet.

If you are using visual studio you can try https://github.com/shuebner/ClosedTypeHierarchyDiagnosticSuppressor and write abstract record

The sibling pretty much sums it up. But if you want more detail, read on:

Generally, there are three publishing options that each make sense depending on scenario:

JIT + host runtime: by definition portable, includes slim launcher executable for convenience, the platform for which can be specified with e.g. -r osx-arm64[0].

JIT + self-contained runtime: this includes IL assemblies and runtime together, either within a single file or otherwise (so it looks like AOT, just one bin/exe). These requires specifying RID, like in the previous option.

AOT: statically linked native binary, cross-OS compilation is not supported officially[1] because macOS is painful in general, and Windows<->Linux/FreeBSD is a configuration nightmare - IL AOT Compiler depends on Clang or MSVC and a native linker so it is subject to restrictions of those as a start. But it can be done and there are alternate, more focused toolchains, that offer it, like Bflat[1].

If you just want a hello world AOT application, then the shortest path to that is `dotnet new console --aot && dotnet publish -o {folder}`.

[0] https://learn.microsoft.com/en-us/dotnet/core/rid-catalog

[1] https://github.com/bflattened/bflat (can also build UEFI binaries, lol)

See here

See B flat

I've been wondering how to integrate modern .NET Core into a custom build system (buck2) and was wondering similar things. There's this project I think is cool called bflat[1] that basically makes the C# compiler more like the Go compiler in the sense it's a one-shot single-use tool that can cross compile binaries natively. It's done by one of the people on the .NET Runtime team as a side project, but quite neat.

I think in practice you're supposed to compile whole .dll's or assemblies all at once, which acts as the unit of compilation; I don't think the csharp compiler generates native object-files-for-every-.cs, the kind of approach you'd expect from javac or g++. Someone please correct me if I'm wrong though! I'd like to learn more about this.

[1] https://github.com/bflattened/bflat

You can compile without a GC using https://github.com/bflattened/bflat

nice. have you tried compile it using https://github.com/bflattened/bflat to have native executable? as long as you don't have PackgeReference it can be compiled using bflat instead of full dotnet

The creator actually addresses this issue: