From 9c7a2aef30cb35347af646dea5a5611af1224676 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Fri, 15 Nov 2019 10:26:31 +0300
Subject: Refactor Module::from_source to properly descend from root file

---
 crates/ra_hir_def/src/nameres.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'crates/ra_hir_def')

diff --git a/crates/ra_hir_def/src/nameres.rs b/crates/ra_hir_def/src/nameres.rs
index d3ecabb9b..1331fbe30 100644
--- a/crates/ra_hir_def/src/nameres.rs
+++ b/crates/ra_hir_def/src/nameres.rs
@@ -258,6 +258,13 @@ impl CrateDefMap {
         let res = self.resolve_path_fp_with_macro(db, ResolveMode::Other, original_module, path);
         (res.resolved_def, res.segment_index)
     }
+
+    pub fn modules_for_file(&self, file_id: FileId) -> impl Iterator<Item = CrateModuleId> + '_ {
+        self.modules
+            .iter()
+            .filter(move |(_id, data)| data.definition == Some(file_id))
+            .map(|(id, _data)| id)
+    }
 }
 
 mod diagnostics {
-- 
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