do you think we should port HashMultiMap to #fsharpx?

[jackfoxy]

@forki asks "@foxyjackfox do you think we should port HashMultiMap to #fsharpx?"

Ultimately I think it would benefit the community to have a single open source project for all data structures and collections not in the Microsoft.FSharp namespace.

However, I'm not convinced there is enough value in this proposition to undertake implementing all the https://github.com/fsharp/powerpack collections and tagged collections in FSharpx. This is complicated by the PowerPack types all being in the Microsoft.FSharp.Collections and Microsoft.FSharp.Collections.Tagged namespaces (but not being in FSharp.Core.Dll), and what few examples of HashMultiMap usage are available all use Microsoft.FSharp.Collections.HashIdentity module for the comparer, which is not only in the MS namespace, but actually in FSharp.Core.Dll. In my opinion if PowerPack is to be deprecated for collections, then the collections should be subsumed by FSharp.Core.Dll, which is probably not possible.

[ghost]

HashMultiMap really exists to support the OCaml Hashtbl.* compatibility module. In the long run I think it logically belongs in FSharpx.Compatibility.OCaml DLL (where FSharpx should also have an FSharpx.Compatibility.Python, FSharpx.Compatibility.Matlab etc.)

[jackfoxy]

Included this topic in a larger discussion of FSharpx Data Structures, looking for community feedback http://jackfoxy.com/fsharpx-data-structures-discussion

[ghost]

I'll close this for now. I don't think the conclusion of the community discussion was to include this in FSharpx.