`completion.callSnippet` flag has no effect (function completions never add `()`)

[aridclown]

Toggling emmyrc.completion.callSnippet doesn’t seem to change completion behavior.

For example, given a code like this:

function foo(a, b) end

Whenever the autocomplete is resolved, only the function identifier is returned, so the editor never sees () or snippet placeholders, even with "callSnippet": true, e.g.:

Expected result

Please, correct me if I'm wrong, but when callSnippet is true, shouldn't the completion item return a snippet insert text such as foo($0), so editors can insert foo() with the cursor between the parentheses?

I'm assuming this was an explicit design choice, right? Since not everyone wants auto-parens (like in chained calls or when passing a function as a reference via a param).

Sorry if I'm missing any specific details here.

[CppCXY]

This was a feature implemented in the previous version of the EmmyLua analyzer (C#). Later, when I reimplemented it in Rust, I didn't perceive its advantages. By the time the Rust version was implemented (in 2025), AI-based code completion had become very widespread and could typically instantly complete parameters and parentheses. Therefore, implementing this feature had some value but was not particularly significant. Additionally, IDEA does not have a "next edit" AI completion feature. If this (call snippet) completion were adopted, it would cause the AI completion to stop working.

[aridclown]

Thanks for the explanation, it makes sense to me. :)