Feature request: please support function pointer

[HppZ]

const char* (*item_name)(void* ctx);

[NativeTypeName("const char *(*)(void *)")]
public delegate* unmanaged[Cdecl]<void*, sbyte*> item_name;

error:
Failed while generating field: item_name. Unrecognized type: HandleTypeHandleInfo.

[AArnott]

I don't see anything from your description that relates to CsWin32. Can you clarify?

[HppZ]

I want to generate c# bindings for some c libraries, but CsWin32 can't handle struct with function pointer such as const char* (*item_name)(void* ctx);.

src\Microsoft.Windows.CsWin32\Generator.MetadataHelpers.cs IsManagedType:244 throw this error: Unrecognized type: HandleTypeHandleInfo.

[HppZ]

any update?

[AArnott]

Ok, so you're not reading win32metadata here, but something custom that you produced?
If so, we don't have testing infrastructure built for anything other than the win32metadata and wdk metadata files, so support for other winmd's is 'best effort' at the moment rather than a guarantee. This is a gap that I'd like to fill, but we lack resources to do it.

If you'd like to help, the first step would be to contrive some way to produce winmd's as part of our build in this repo that can contain whatever special patterns you please (e.g. your function pointers).
Then we'd wire that up as an input to our tests.
We'd then be in a great position to add support for those patterns.

[Lightczx]

I want to generate c# bindings for some c libraries

@HppZ That seems what https://github.com/dotnet/ClangSharp does.

[HppZ]

@Lightczx it is just one of my scenarios, i need to support more languages.