API for traversing AST and help on System Adapters

[b4apple]

Hi team,

Wondering if there is an API to traverse the ttcn AST as I want to write a interpreter for a VM and I think this would be a great start. Also, are there any system adapters available which I can plug into the VM or do I take a swig of coffee and do it on my own ?

Thanks,
Regards,
Aritro Shome

[5nord]

AST API

We were experimenting with the syntax trees a long time and therefore have no API, but various flavors for syntax trees:

• a low-level abstract syntax tree in go/ast-style: https://pkg.go.dev/github.com/nokia/ntt@v0.14.3/ttcn3/ast
  You traverse it manually or with ast.Inspect, ast.Apply' or ast.Walk`
• a ttcn3.Tree wrapper around the low-level AST, providing parents, caching, indexing, ...
• a serialized JSON tree for third party code generators used by ttcn3c

I am currently preparing a finalized API which will be released in a few weeks.

System Adapters

I don't have a proof of concept for adapters, yet. I am thinking about a RPC-based plugin architecture plus some tools for code generation. ttcn3-bindgen maybe?

Sorry, for the late answer.