Ability to call a CompiledFunc from a UserFunc @kcsampson this functionality is now available in the tengo2 branch. The Callable interface and CallableFunc signatures have changed, so you might need to update your code to support that, but you will be able to call back to tengo code from go code provided you make the call from the same goroutine the VM is running on.

[kcsampson]

Hi Sorry to bring this old issue back up.

But now I really could use this feature, but can't find it implemented as noted at the time from Jacob's response to the old ticket in December 2019.

Looking for an implemented of *CompiledFunc.Call() that actually does something instead of return nil,nil. (The base object implementation)

          @kcsampson this functionality is now available in the `tengo2` branch. The `Callable` interface and `CallableFunc` signatures have changed, so you might need to update your code to support that, but you will be able to call back to tengo code from go code provided you make the call from the same goroutine the VM is running on.

Originally posted by @mccolljr in #94 (comment)

[geseq]

Here is the PR/branch for the change you're looking for, but it's not yet in a state to be merged

#372