I used Go awhile ago for a Blockly interpreter. It's remarkably friendly; if memory serves, the ability to attach metadata to structs was pretty useful. One ha

I used Go awhile ago for a Blockly interpreter. It's remarkably friendly; if memory serves, the ability to attach metadata to structs was pretty useful. One hack I'm not super proud of is I implemented return and break with panic / recover. Were I to do it all over, I'd probably use continuations to model that instead. (Side-note on Lua specifically: among the reasons I like Lua is that it's very simple and its reference interpreter implementation is some very understandable code. I did some truly horrible things to it back in the day for a game engine, and it was very amenable to getting beat up like that).