fix: prevent potential overflow during height computation

Byron · Mar 10, 2024 · 6d5e140 · 6d5e140
1 parent 3a96651
commit 6d5e140
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/tui-react/src/list.rs b/tui-react/src/list.rs
@@ -15,7 +15,7 @@ impl List {
     fn list_offset_for(&self, entry_in_view: Option<usize>, height: usize) -> usize {
         match entry_in_view {
             Some(pos) => match height as usize {
-                h if self.offset + h - 1 < pos => pos - h + 1,
+                h if self.offset + h.saturating_sub(1) < pos => pos.saturating_sub(h + 1),
                 _ if self.offset > pos => pos,
                 _ => self.offset,
             },