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fix(diff.c): regression in diffgetput (#20843)

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Lewis Russell
2022-10-28 13:22:10 +01:00
committed by GitHub
parent 3de2a7f6df
commit 60427eb05f
1 changed files with 9 additions and 7 deletions
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16
src/nvim/diff.c
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@@ -2678,7 +2678,8 @@ static void diffgetput(const int addr_count, const int idx_cur, const int idx_fr
// past the range that was specified
break;
}
diff_T *dfree = NULL;
diff_T dfree = { 0 };
bool did_free = false;
linenr_T lnum = dp->df_lnum[idx_to];
linenr_T count = dp->df_count[idx_to];
@@ -2775,7 +2776,9 @@ static void diffgetput(const int addr_count, const int idx_cur, const int idx_fr
if (i == DB_COUNT) {
// delete the diff entry, the buffers are now equal here
dfree = dp;
dfree = *dp;
did_free = true;
dp = diff_free(curtab, dprev, dp);
}
}
@@ -2794,10 +2797,9 @@ static void diffgetput(const int addr_count, const int idx_cur, const int idx_fr
}
changed_lines(lnum, 0, lnum + count, added, true);
if (dfree == dp) {
if (did_free) {
// Diff is deleted, update folds in other windows.
diff_fold_update(dfree, idx_to);
dp = diff_free(curtab, dprev, dp);
diff_fold_update(&dfree, idx_to);
}
// mark_adjust() may have made "dp" invalid. We don't know where
@@ -2806,7 +2808,7 @@ static void diffgetput(const int addr_count, const int idx_cur, const int idx_fr
break;
}
if (dfree == NULL) {
if (!did_free) {
// mark_adjust() may have changed the count in a wrong way
dp->df_count[idx_to] = new_count;
}
@@ -2818,7 +2820,7 @@ static void diffgetput(const int addr_count, const int idx_cur, const int idx_fr
}
// If before the range or not deleted, go to next diff.
if (dfree == NULL) {
if (!did_free) {
dprev = dp;
dp = dp->df_next;
}