From 73fc05fdca348a899c78f527d08f323cd582100d Mon Sep 17 00:00:00 2001
From: oxalica <oxalicc@pm.me>
Date: Tue, 16 Mar 2021 01:24:21 +0800
Subject: Pretty print root module of extern crates

---
 crates/hir/src/display.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'crates/hir/src')

diff --git a/crates/hir/src/display.rs b/crates/hir/src/display.rs
index e3660442c..44cdcc296 100644
--- a/crates/hir/src/display.rs
+++ b/crates/hir/src/display.rs
@@ -431,6 +431,10 @@ impl HirDisplay for Module {
         // FIXME: Module doesn't have visibility saved in data.
         match self.name(f.db) {
             Some(name) => write!(f, "mod {}", name),
+            None if self.crate_root(f.db) == *self => match self.krate().display_name(f.db) {
+                Some(name) => write!(f, "extern crate {}", name),
+                None => write!(f, "extern crate {{unknown}}"),
+            },
             None => write!(f, "mod {{unnamed}}"),
         }
     }
-- 
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