Minimize allocation when converting table rows to string

1 files changed, 5 insertions, 1 deletions

diff --git a/helix-term/src/ui/picker.rs b/helix-term/src/ui/picker.rs
index e00fe1f8..05738ccf 100644
--- a/helix-term/src/ui/picker.rs
+++ b/helix-term/src/ui/picker.rs
@@ -733,7 +733,11 @@ impl<T: Item + 'static> Component for Picker<T> {
             .map(|mut row| {
                 const TEMP_CELL_SEP: &str = " ";
 
-                let line = row.cell_text().join(TEMP_CELL_SEP);
+                let line = row.cell_text().fold(String::new(), |mut s, frag| {
+                    s.push_str(&frag);
+                    s.push_str(TEMP_CELL_SEP);
+                    s
+                });
 
                 // Items are filtered by using the text returned by menu::Item::filter_text
                 // but we do highlighting here using the text in Row and therefore there