I want to contribute the file IO functions for Adobe AIR. Which github repo do I use and where can I find the “sys.io.File” source code to modify it? Any tips? Thanks.
Edit: I need to create a file like this for AIR : https://github.com/HaxeFoundation/haxe/blob/development/std/cpp/_std/sys/FileSystem.hx
Edit: I’m just gonna fork and create this file for AIR : https://github.com/zacdevon/haxe/blob/development/std/cs/_std/sys/FileSystem.hx
The Haxe compiler uses a special “_std” class path within it’s own source path that branches files based on the target platform, so cpp, cs or java can have their own sys.FileSystem implementation.
Define “sys/FileSystem.hx” in your own class path and it overrides the default one, but you lose the ability to switch based on platform, with the exception (I think) of using “sys/FileSystem.flash.hx”, which might work (I read about this being a feature in the newer Haxe compiler). However, we currently use a special path in the Lime project for Adobe AIR externs, that no other target is using:
It might be possible to experiment with doing an “externs/sys” directory and trying to implement these functions for Adobe AIR in there. I believe that would be picked up on our AIR builds, but not for any other target 
(of course the ordinary Flash filesystem APIs should be available, but adding merged support for the Haxe sys API is a great idea for interoperability)