From 1ec418c3b8af987e1531c5cfd5bc1e817f237036 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 29 Oct 2019 16:03:29 +0300
Subject: [PATCH] add doc comment

---
 crates/ra_hir_expand/src/db.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/crates/ra_hir_expand/src/db.rs b/crates/ra_hir_expand/src/db.rs
index 8b92d4c1f8..dc4944c051 100644
--- a/crates/ra_hir_expand/src/db.rs
+++ b/crates/ra_hir_expand/src/db.rs
@@ -1,3 +1,5 @@
+//! Defines database & queries for macro expansion.
+
 use std::sync::Arc;
 
 use mbe::MacroRules;