HUGS!
Haxe Unity Glue...Stuff!
This library includes Haxe externs for Unity and .NET frameworks, generated via the cslibgen utility. It also includes the HUGSWrapper "using" class, which includes various things to work around Haxe/C# translation issues, as well as make working with Unity easier.
Documentation forthcoming...
But in the mean time, you can check out our blog post on it.