1 files changed, 26 insertions, 0 deletions
diff --git a/library/alloc/src/collections/btree/mod.rs b/library/alloc/src/collections/btree/mod.rs
new file mode 100644
index 000000000..9d43ac5c5
--- /dev/null
+++ b/library/alloc/src/collections/btree/mod.rs
@@ -0,0 +1,26 @@
+mod append;
+mod borrow;
+mod dedup_sorted_iter;
+mod fix;
+pub mod map;
+mod mem;
+mod merge_iter;
+mod navigate;
+mod node;
+mod remove;
+mod search;
+pub mod set;
+mod set_val;
+mod split;
+
+#[doc(hidden)]
+trait Recover<Q: ?Sized> {
+    type Key;
+
+    fn get(&self, key: &Q) -> Option<&Self::Key>;
+    fn take(&mut self, key: &Q) -> Option<Self::Key>;
+    fn replace(&mut self, key: Self::Key) -> Option<Self::Key>;
+}
+
+#[cfg(test)]
+mod testing;