simple test for item map

1 files changed, 7 insertions, 0 deletions

diff --git a/crates/ra_analysis/src/descriptors/module/mod.rs b/crates/ra_analysis/src/descriptors/module/mod.rs
index 124926a40..95d9bcc27 100644
--- a/crates/ra_analysis/src/descriptors/module/mod.rs
+++ b/crates/ra_analysis/src/descriptors/module/mod.rs
@@ -149,6 +149,13 @@ pub(crate) struct ModuleTree {
 }
 
 impl ModuleTree {
+    fn modules<'a>(&'a self) -> impl Iterator<Item = ModuleId> + 'a {
+        self.mods
+            .iter()
+            .enumerate()
+            .map(|(idx, _)| ModuleId(idx as u32))
+    }
+
     fn modules_for_source(&self, source: ModuleSource) -> Vec<ModuleId> {
         self.mods
             .iter()