REPL improvements

[davidmoshal]

1. ability to enter multi-line statements.

2. tab completing (like EspruinoJS).

• wondering if it's possible to get this info from Jerryscript.

[niklauslee]

About 2, is that works only for predefined funs and vars? Or, works exactly like typical code completion in VSCode, etc.?

[davidmoshal]

Works exactly like VSCode.
Any new var / const can be tab-completed.
You should try it out.
If we had that working, then I'd be willing to work on a user interface for Kaluma similar to Espruino.

[niklauslee]

It doesn't seem easy with JerryScript API. Any ideas are welcome.

[davidmoshal]

I'm no C expert sadly, maybe the answer is in the Espruino codebase.

Looking at the Jerryscript api, there is the ability to look at types and enumerate their properties.
https://jerryscript.net/api-reference/#jerry_object_type_t

There is also a context:
https://jerryscript.net/api-reference/#jerry_context_t

So. presumably given the context, and the ability to enumerate the properties of an object tab completion should be possible, no?

[niklauslee]

For the feature I think it is required to build partial AST (parsing incomplete JS expression).