From b777d46ae61fce3c3a891eeda5b5d7c91fda3871 Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Mon, 19 Apr 2021 01:06:04 +0200
Subject: Fix visibility of items in block modules

---
 crates/hir_def/src/lib.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'crates/hir_def/src/lib.rs')

diff --git a/crates/hir_def/src/lib.rs b/crates/hir_def/src/lib.rs
index 000567d99..5ac1670b5 100644
--- a/crates/hir_def/src/lib.rs
+++ b/crates/hir_def/src/lib.rs
@@ -108,6 +108,18 @@ impl ModuleId {
     pub fn containing_module(&self, db: &dyn db::DefDatabase) -> Option<ModuleId> {
         self.def_map(db).containing_module(self.local_id)
     }
+
+    /// Returns `true` if this module represents a block expression.
+    ///
+    /// Returns `false` if this module is a submodule *inside* a block expression
+    /// (eg. `m` in `{ mod m {} }`).
+    pub fn is_block_root(&self, db: &dyn db::DefDatabase) -> bool {
+        if self.block.is_none() {
+            return false;
+        }
+
+        self.def_map(db)[self.local_id].parent.is_none()
+    }
 }
 
 /// An ID of a module, **local** to a specific crate
-- 
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