On Mar 22, 2023, at 1:49 PM, Daniel Colascione <dancol@dancol.org> wrote:

Is there a general-purpose through which we can avoid line indentation

oscillating as the user types when the AST is temporarily invalid,

e.g. after '(' or '{'? I'm checking out the C++ tree-sitter mode, and

one of the more disconcerting things is the current line's indentation

changing rapidly as I type. Is it feasible to create ERROR recovery

indentation rules for every conceivable situation?

Yes, but in reality, I think all we need is a couple special case for the unmatched ( and {’s. Can you think of other cases of blinking indentations?

Yuan

But TS reacts to missing closing brackets by clarifying the whole nearby expression as ERROR. It's not, as would be more useful, saying "here's a stray (, and everything else is normal and parsed as if that ( were absent"