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fix(folds): update folds in Insert mode with fdm=indent (#24402)

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Previously, when using foldmethod=indent, inserting an unindented line
would inadvertently open closed folds below it.
As a performance improvement, folds were only updated once, across all
lines, after Insert mode was exited.

Now, the performance improvement is no longer being used when
foldmethod=indent, so folds are updated multiple times during Insert
mode, but only across the lines that are changing, which preserves the
folds (and their open/close states) instead of recreating them.
This commit is contained in:
Brandon Simmons
2023-07-20 19:56:08 -05:00
committed by GitHub
parent 60d320dea3
commit 58f9486144
2 changed files with 29 additions and 1 deletions
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2
src/nvim/fold.c
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@@ -771,7 +771,7 @@ void clearFolding(win_T *win)
/// The changes in lines from top to bot (inclusive).
void foldUpdate(win_T *wp, linenr_T top, linenr_T bot)
{
if (disable_fold_update || State & MODE_INSERT) {
if (disable_fold_update || (State & MODE_INSERT && !foldmethodIsIndent(wp))) {
return;
}