pub fn apply_fold_level_to_new(folds: &mut [Fold], carried: &[bool], level: u32)Expand description
Close new folds that sit deeper than foldlevel, leaving folds
whose state was carried over untouched.
carried[i] is true when folds[i] inherited its closed flag from
a previous fold with the same identity. Those keep whatever the user
last did to them; the rest are new structure, and new structure obeys
the option.
Only ever closes. A provider may emit a fold already closed —
diff-mode’s unchanged-region folds are the in-tree case, and the
whole point of them is that the unchanged stretches start collapsed.
Assigning closed = depth > level here rather than OR-ing reopened
every one of them at the default level, because a level-1 fold is not
deeper than 99. foldlevel decides whether nesting depth adds a
close; it does not get a vote on a provider’s own intent. Reopening
is the bulk apply_fold_level path, which is a user action.