ext_opts: Disable passive when outside of snippet

[jedrzejboczar]

I really like the idea of having an indicators for all the tabstops in a snippet as virtual text with the current one highlighted:

with:

ext_opts = {
    [types.choiceNode] = {
        passive = { virt_text = {{'●', 'Comment'}}, },
        active = { virt_text = {{'●', 'GruvboxOrange'}}, },
    },
    [types.insertNode] = {
        passive = { virt_text = {{'●', 'Comment'}}, },
        active = { virt_text = {{'●', 'GruvboxBlue'}} },
    }
}

But with history = true the passive indicators persist even after leaving the snippet (and for all the snippets in the history). What would it take to provide something like passive_inside_snippet to apply the virtual text only to the passive nodes in the current snippet?

[L3MON4D3]

Ouh, that shouldn't be too hard.
I think extending the keys in the passive, active table by something like snippet_passive could be the best solution as it is the most flexible(if the highlight should stay even while outside the snippet it can be defined as snippet_passive(which would then extend to passive, if it is unspecified)).
What do you think?

[jedrzejboczar]

If I understand correctly snippet_passive would do what passive currently does, which would be a breaking change. But I believe most users would rather expect passive to have that "passive only inside a snippet" behaviour, so to me it sounds good :)

[L3MON4D3]

Perfect, I'll add it