Go extensions for other languages

[Justin Israel]

A friend of mine had suggested that it was possible to write Node.js native extensions in Go as opposed to C++. I said that I wasn't aware that was possible, and he said as far as he knew, it was. So I tried to find information on it which turned up this post:

http://stackoverflow.com/questions/20728255/could-one-write-a-native-node-js-extension-in-go-as-opposed-to-c

I was wondering if someone could explain the potential usability/limitations of the approach in this example, in terms of "writing extensions for other languages". I was under the impression that Go needed to be the entry point, for its initialization, yet this seems to just start the entry point from a C wrapper?

Anyways, interested to hear some information on this approach.

[Kyle Lemons]

It might be doable for simple things like add (that don't generate garbage or require the runtime), but it's not supported (yet) by either compiler as far as I know.  Part of the work is done for linux (see golang.org/issue/256), but there are a number of open questions (what happens when you load two shared objects? etc)

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[Justin Israel]

That's what I figured. I also assumed that it had to be limited in some fashion. Thanks for the clarification!