[jetti]

I have not heard of tagless final style interpreter before and that seems really neat. However, based on the link it seems that tagless final interpreter uses a strong type language like Haskell or ML so I don’t know how well it would translate to Javascript, which is what the GP comment said they were using.

[naasking]

I've done them in C# with slightly less safety.

https://higherlogics.blogspot.com/search/label/tagless%20int...

The style of the construction is what matters most. If you're using JS then you're already giving up types, but the higher order abstract syntax is what lets you embed and play with language semantics.

[jetti]

I think I may have misunderstood what your original comment was referring to. Were you saying that one doesn’t need a parser to make a working interpreter? I want to make sure that I understand the context of your comments because looking at the post you linked where you did this in C# you show you are using a recursive descent parser. It was when I saw the parser that I realized I could be way off base on what I was thinking you were talking about.