about summary refs log tree commit diff
path: root/compiler/rustc_data_structures
diff options
context:
space:
mode:
Diffstat (limited to 'compiler/rustc_data_structures')
-rw-r--r--compiler/rustc_data_structures/src/sorted_map.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_data_structures/src/sorted_map.rs b/compiler/rustc_data_structures/src/sorted_map.rs
index c3c173b3fc4..15e3e6ea4c3 100644
--- a/compiler/rustc_data_structures/src/sorted_map.rs
+++ b/compiler/rustc_data_structures/src/sorted_map.rs
@@ -249,7 +249,7 @@ impl<K: Ord, V> SortedMap<K, V> {
             }
         };
 
-        // Insert the rest
+        // Insert the rest. This is super inefficicent since each insertion copies the entire tail.
         for (k, v) in elements {
             self.insert(k, v);
         }